Learn A Level Mathematics, the sciences, Engineering, Business, Economics and Accounting from the very first idea, with worked examples marked the way examiners mark them. Then follow a step-by-step road all the way to exam day.
Each phase of the road has its own page saying exactly what to do, for how long, and how to know you are ready to move on. The overview of the road puts all six on one page.
Choose a subject
Every course is taught in full, from absolute basics to the hardest A Level ideas. The number beside each subject is its Cambridge International syllabus code. Each chapter also notes where Pearson Edexcel, AQA and OCR differ.
How this guide works
Every chapter is written for someone meeting the topic for the first time. It starts with the idea in plain English, builds up step by step, and finishes at real exam standard. Look out for these parts:
AaKey term cards hold the exact definitions examiners expect. They are also collected in the glossary.
M1Worked examples show every step. The marks sit in the margin, as on a marked script: M for method, A for an accurate answer, B for an independent fact.
✗Common mistakes are the errors examiners see every year, and how to avoid them.
!Exam technique notes explain what the question really wants and where the marks are.
≠Board differences say where Edexcel, AQA or OCR do things differently from Cambridge.
✓Try it yourself questions have full answers, and quick checks mark you instantly. Tick Mark as learned at the end of a chapter to track your progress.
Tools you can use any time
Build your study plan: enter your exam date and subjects to get a week-by-week timeline.
Practice quizzes: mixed questions from every chapter, with instant feedback.
A Levels are two-year qualifications in single subjects, usually taken at 16–18 after GCSE, IGCSE or O Level, and used for university entry around the world. This chapter explains how they work, how they compare with other systems, and what studying them is really like.
A Levels in plain English
A Level is short for Advanced Level. An A Level is a qualification in one subject, such as Mathematics, Chemistry or Business. Most students study three of them at the same time, over two years, between the ages of 16 and 18. At the end you receive one grade for each subject, from A* (the highest) down to E.
A Level
An Advanced Level qualification in a single subject, normally studied over two years after GCSE, IGCSE or O Level and graded A* to E. It is the main qualification for university entry in England, Wales and Northern Ireland, and schools in many other countries offer it too.
A Levels follow the exams most students take at about 16: GCSE (General Certificate of Secondary Education) in England, Wales and Northern Ireland, IGCSE (International GCSE) in international schools, or O Level (Ordinary Level), still offered by Cambridge in some countries.
In England, the two A Level years are Year 12 and Year 13, together called the sixth form. In Turkey they match the ages of Grades 11 and 12 of lise. Scotland has its own system (Highers and Advanced Highers), so A Levels are less common there.
Two halves: AS and A2
An A Level course splits naturally into two halves of about one year each.
AS Level
Advanced Subsidiary Level: a qualification covering roughly the first half of an A Level, normally studied in one year. Cambridge International grades it a to e (lower-case letters); UK boards use A to E. There is no A* at AS Level.
The second half is usually called A2, and this guide labels first-year content “AS” and second-year content “A2”.
Whether your AS result counts depends on the exam board:
Exam board
Does the AS count towards the full A Level?
Cambridge International
Yes, on the “staged” route: AS first, then the result is carried forward. You can also sit everything at the end.
Pearson Edexcel International (IAL)
Yes: the first-year units make up half the qualification.
AQA, OCR, Pearson Edexcel and Eduqas in England
No. The AS is a separate qualification; all A Level exams come at the end of Year 13.
WJEC (Wales) and CCEA (Northern Ireland)
Yes. The AS is worth 40% of the A Level.
A typical two-year course. Year 12 exams count towards the A Level on Cambridge’s staged route and at Edexcel International. With the boards in England, every exam that counts comes at the end of Year 13.
How many subjects, and which grades?
Most students take three A Levels. Students who choose Further Mathematics usually take four, because Further Maths is studied alongside Mathematics, not instead of it. Some schools ask everyone to start four subjects and drop one at the end of the first year, keeping it as an AS.
Qualification
Pass grades, highest first
A Level (all boards)
A*, A, B, C, D, E
AS Level (Cambridge International)
a, b, c, d, e
AS Level (UK boards)
A, B, C, D, E
A result below E is recorded as U (ungraded), which is not a pass. Universities usually make offers in grades, such as “AAB”, or in UCAS tariff points, which turn grades into numbers. Grades, marks and UCAS points explains both.
How much work is an A Level?
Guided learning hours
The time a student spends being taught, or doing study directed and supervised by a teacher, for a qualification. Cambridge International plans for about 360 guided learning hours for each A Level and about 180 for each AS Level. Private study comes on top.
Two school years have about 36 teaching weeks each, so 360 hours works out at about 5 hours of teaching per subject per week. Add homework, revision and practice, and a normal A Level week looks like this:
Activity
Hours per subject per week
For three subjects
Lessons (or, if you study alone, working through chapters)
4–5
12–15
Homework and reviewing notes
2–3
6–9
Practice questions, and later past papers
1–2
3–6
Total
7–10
21–30
Three A Levels are close to a full-time job. In school, that means lessons in each subject on most days, homework in every subject, and a short test or practical most weeks. If you study alone, you are teacher and student at once: lesson time becomes reading, working through examples and checking answers.
Why depth matters
At IGCSE you probably studied eight to ten subjects. At A Level you study three, and each goes much deeper: A Level Chemistry, for example, explains why reactions happen and asks you to predict ones you have never seen.
Because of this depth, examiners test understanding more than memory. Only part of the marks are for recalling facts; the rest reward applying ideas to unfamiliar situations, handling data, and analysing or evaluating.
Assessment objectives (AOs)
The skills an exam is designed to reward, listed with their weightings in every syllabus. Typical AOs are knowledge and understanding, application, and analysis and evaluation; science subjects also have one for experimental skills.
Most students find the first term the hardest: the pace is faster, the ideas are more abstract, and you are expected to work more independently. This is normal, and it is why every chapter in this guide starts from zero and builds up in small steps. The same depth is why universities value A Levels: two years of serious work on a few hard subjects is excellent preparation for a degree.
Who uses A Levels?
A Levels are the standard entry qualification for UK universities, and universities in many other countries accept them too. Each university sets its own requirements, so always check the entry requirements for international students on each course page.
Several organisations, called exam boards, write and mark A Levels. Schools in the UK use boards such as AQA, OCR, Pearson Edexcel, WJEC/Eduqas and CCEA. International schools mostly use Cambridge International (often shortened to CAIE) or Pearson Edexcel International (IAL), and OxfordAQA also offers international A Levels. UK universities accept A Levels from all the major boards. This guide follows Cambridge International and points out where the others differ.
How A Levels compare with other systems
A Levels
IB Diploma
US Advanced Placement (AP)
National systems (e.g. Turkey)
Length
2 years
2 years
Usually 1 year per course
Final years of school, then an entrance exam
Subjects
Usually 3, in depth
6 (3 Higher Level, 3 Standard Level) plus a core
Any number of single-subject exams
A broad school curriculum
Extra parts
Optional Extended Project (EPQ) at UK boards
Theory of Knowledge, Extended Essay, CAS
None
Varies by country
Grading
A* to E per subject
1 to 7 per subject, 45 points maximum
1 to 5 per exam
School grades plus an exam score
Main use
University entry in the UK and worldwide
University entry worldwide
US college admission and credit
Entry to that country’s universities
None of these is “better”. The IB Diploma suits students who want breadth (CAS stands for creativity, activity, service). AP exams are taken alongside an American high school diploma, and UK universities usually ask for several AP scores as well as the diploma. National systems, such as Turkey’s lise diploma plus the YKS entrance exam run by ÖSYM, are designed mainly for entry to that country’s own universities. A Levels suit students who are ready to specialise.
Can anyone take A Levels?
Yes. There is no age limit, and you do not need to be at a school. Adults, home-schooled students and school students adding a subject their school does not teach can all enter as a private candidate.
Private candidate
A student who enters for exams through an approved exam centre without being taught there. Private candidates sit the same papers and receive the same grades and certificates as school students.
Private candidates register with an exam centre that accepts external students, pay the fees and sit the exams there. In Turkey, the British Council (in Istanbul and Ankara) and some approved schools act as centres. Sciences need care: Cambridge’s science A Levels include a laboratory exam that your centre must be able to run, while Edexcel International tests practical skills in written papers, one reason many private candidates choose it. Studying as a private candidate explains the process.
Where to go from here
Decide roughly what, and where, you want to study next.
Who sets A Level exams, how Cambridge International, Pearson Edexcel International and the boards in England organise them, when exams and results happen, and how papers, mark schemes and grade boundaries work.
What an exam board does
An exam board writes the syllabus, sets the papers, marks them and awards the grades. All boards teach broadly the same subjects at the same level, but the details differ: the exact topics, the number and style of papers, the exam months and the resit rules.
Exam board
An organisation that writes the syllabus for a qualification, sets and marks the exams, and awards grades and certificates. Also called an awarding body.
Syllabus
The official document listing exactly what can be examined in a subject, how the exams are structured and what each assessment objective is worth. Cambridge calls it a syllabus; Pearson and the UK boards call it a specification.
The main boards
Board
Qualification
Where it is used
Cambridge International (CAIE)
Cambridge International AS & A Level
International schools in many countries; private candidates at approved centres
Pearson Edexcel International
International Advanced Level (IAL)
International schools; widely used by private candidates, including at British Council centres
AQA
AS and A Level
Schools in England
OCR
AS and A Level
Schools in England
Pearson Edexcel (UK)
AS and A Level
Schools in England, and some British schools abroad
WJEC / Eduqas
AS and A Level
WJEC in Wales; Eduqas is the same organisation’s brand in England
Northern Ireland has its own board, CCEA, and OxfordAQA offers international A Levels in some countries. Cambridge International and OCR both belong to Cambridge University Press & Assessment, but they set different qualifications. AQA, OCR, Pearson Edexcel and Eduqas follow the same rules for A Levels in England, set by the regulator Ofqual, so their A Levels share one structure.
Cambridge International: AS first, or everything at the end
A Cambridge A Level is made of several papers, which Cambridge calls components. The AS papers make up the AS Level and also half of the full A Level; the A Level adds more papers on second-year content. You can take them in three ways:
AS Level only. Sit the AS papers and receive an AS qualification.
Staged route. Sit the AS papers in one series and the remaining A Level papers in a later one. Your AS result is carried forward and combined with them.
Linear route. Sit every paper, AS and A Level, in the same series at the end of the course.
An AS result can be carried forward to complete the A Level within 13 months. In practice, an AS taken in June can be completed in the following June series.
A real example is Cambridge International AS & A Level Physics (9702). Chemistry (9701) and Biology (9700) follow the same pattern.
Paper
Type
Time
Marks
Share of A Level
1
Multiple choice (AS)
1 h 15 min
40
15.5%
2
AS structured questions
1 h 15 min
60
23%
3
Advanced practical skills (laboratory exam)
2 h
40
11.5%
4
A Level structured questions
2 h
100
38.5%
5
Planning, analysis and evaluation
1 h 15 min
30
11.5%
Papers 1–3 form the AS (50% of the A Level); Papers 4 and 5 are the second-year papers.
Cambridge runs two main exam series each year: June (exams from roughly late April to mid-June) and November (October and November). A third, March, series is available in India only. June results come out in August (the June 2026 A Level results were released on 11 August 2026), and November results in January.
Exam series
A period in which a board runs a full set of exams, named after its main month, such as the June series or the November series.
Pearson Edexcel International: units taken in stages
An IAL is modular: it is split into units, each examined by one paper. IAL sciences have six units, three for the International AS and three more for the full IAL. IAL Mathematics also has six: four Pure units and two applied units (mechanics, statistics or decision mathematics).
Modular qualification
A qualification split into separately examined units that can be taken at different times, with the results combined at the end. Edexcel International A Levels are modular; A Levels from the boards in England are linear.
There are three sittings a year: January, May/June and October/November. Most units are offered in every sitting.
You can spread units over several sittings, for example Pure 1 in January and Pure 2 in June.
You can resit a unit to improve it, and the better result counts.
Each unit’s raw mark is converted to a uniform mark so that units from different sittings can be added fairly (how this works).
When you have all the units you need, your centre claims the qualification (called “cashing in”) and your overall grade is calculated.
In the sciences, practical skills are tested in written papers (Units 3 and 6), not in a laboratory exam.
The boards in England: linear A Levels
A Levels from AQA, OCR, Pearson Edexcel and Eduqas are linear:
Every exam that counts is sat in May and June at the end of Year 13.
The AS is a separate qualification whose marks never count towards the A Level, so many schools no longer enter students for it.
There is one exam series a year, in the summer. To improve a grade, you resit all the exam papers the following summer; coursework marks can usually be carried forward.
In Biology, Chemistry and Physics you also receive a Practical Endorsement, reported separately as Pass or Not classified, based on at least 12 practical activities assessed by your teacher. Many universities expect a Pass.
Some subjects include coursework, officially called non-exam assessment (NEA): typically 20% in History, Geography, English Literature and Computer Science, and more in subjects such as Design and Technology and Art.
The three systems side by side
Cambridge International
Edexcel International (IAL)
Boards in England
Structure
Papers; AS papers form half the A Level
Units; AS units form half the IAL
Linear: all papers at the end
Does the AS count?
Yes, if carried forward within 13 months
Yes
No
Exam series
June and November (March in India only)
January, May/June, October/November
Summer only
Improving a grade
Retake in a later series
Resit single units; the better result counts
Resit all papers the next summer
Science practicals
Laboratory exam plus a planning paper
Written practical-skills papers
Practical Endorsement plus practical questions in written papers
Results
August (June series), January (November series)
Roughly two months after each sitting
Mid-August
What the papers look like
Paper type
What you do
Common in
Multiple choice
Answer 30–40 questions, each with four options
Cambridge sciences, Economics, Accounting
Structured questions
Answer a question in parts (a), (b), (c): short answers, calculations, explanations
Every subject
Extended response
Write a long answer, marked by “levels of response”
Business, Economics, English, History
Data response or case study
Answer questions on unseen data, a text or a business case
Business, Economics, Geography
Practical exam
Carry out experiments in a laboratory under exam conditions
Cambridge sciences
Planning and analysis
Plan an experiment and analyse given results, on paper
Cambridge and Edexcel International sciences
Coursework (NEA)
Complete a project over several weeks, marked by teachers and checked by the board
Some subjects at the boards in England
Mark schemes, examiner reports and grade boundaries
After each series, boards publish three documents that are gold for revision:
Mark schemes show exactly what earned each mark. In Maths they use M (method), A (accuracy) and B (independent) marks; in essay subjects they describe levels of response.
Examiner reports explain, question by question, what candidates did well and where they lost marks.
Grade boundaries (Cambridge calls them grade thresholds) give the minimum mark for each grade. They are set after marking, for each paper in each series. Grades, marks and UCAS points explains why they move.
Cambridge puts a selection of past papers, mark schemes and examiner reports on its public website, and schools get more through its School Support Hub. Pearson, AQA and OCR publish theirs on their qualification pages, although the most recent papers are sometimes released to teachers first.
Entries and deadlines
You cannot simply turn up on exam day. Your school, or your exam centre if you are a private candidate, must enter you for each paper months before the series. For a June series, the deadline usually falls early in the same year, and many centres set their own earlier deadline. Late entries, if accepted at all, cost extra. Fees are set by each centre and vary, so ask for the full price per subject, including any centre charges.
How raw marks become grades, why grade boundaries move, how the A* is awarded, and how UCAS tariff points, university offers and predicted grades work.
The grades
Qualification
Pass grades, highest first
A Level
A*, A, B, C, D, E
AS Level
a, b, c, d, e at Cambridge; A, B, C, D, E at UK boards
A result below the lowest pass grade is reported as ungraded (U), and no qualification is awarded in that subject. Your certificate shows a grade for each subject, not a percentage.
From raw marks to a grade
Each paper is marked and you receive a raw mark. Your raw marks are combined, using each paper’s weighting, and the total is compared with the grade boundaries for that series.
Raw mark
The number of marks you actually score on a paper, before any conversion; for example, 52 out of 75.
Grade boundary
The minimum mark needed for a particular grade on a paper or qualification in a given exam series. Boundaries are set after marking and can change from series to series. Cambridge calls them grade thresholds.
Why boundaries move
No two papers are equally difficult. If this year’s paper is harder than last year’s, the same student scores fewer marks. To keep an A worth the same every year, senior examiners study the papers, samples of marked scripts and statistics, and then set the boundaries. A harder paper gets lower boundaries; an easier paper gets higher ones.
Mark needed (out of 100)
Series 1: harder paper
Series 2: easier paper
Grade A
68
76
Grade C
47
55
These numbers are invented to show the idea; each board publishes the real boundaries for every series. Three lessons follow:
There is no fixed percentage for an A. “70% is an A” is a myth.
A hard paper is hard for everyone. If a paper feels brutal, keep collecting marks: the boundaries will reflect it.
Every mark counts. Neighbouring grades are often separated by only a handful of marks on each paper, so one extra method mark here and there can lift a whole grade.
How the A* is awarded
Cambridge International awards A* for the full A Level only, based on your total across all the papers. There is no A* at AS.
Edexcel International requires an A overall plus an especially high score on the A2 (second-year) units, so an A* reflects strength in the hardest material.
The boards in England set the A* as the top boundary on your total mark, like any other grade.
Uniform marks at Edexcel International
In a modular system, you might sit one unit in a January with a hard paper and another in a June with an easy one. Simply adding the raw marks would be unfair. Pearson solves this with uniform marks.
Uniform mark
A raw unit mark converted onto a fixed scale, so that results from papers of different difficulty, taken in different sittings, can be added fairly. The grade boundaries on the uniform scale stay the same every series.
The conversion uses each sitting’s grade boundaries: a raw mark exactly on the A boundary always becomes the same uniform mark, however hard the paper was. Your uniform marks from all the units are then added, and the total decides your overall grade. Pearson’s results show the uniform mark for each unit, which tells you how close you were to the next grade.
UCAS tariff points
UCAS (the Universities and Colleges Admissions Service) handles applications to UK universities. Its tariff turns grades into points so that different qualifications can be compared.
UCAS tariff points
A points system that converts qualifications and grades into numbers so that different qualifications can be compared. Some universities state their entry requirements in tariff points.
Grade
A Level
AS Level
Extended Project (EPQ)
A*
56
no A*
28
A (AS: a)
48
20
24
B (AS: b)
40
16
20
C (AS: c)
32
12
16
D (AS: d)
24
10
12
E (AS: e)
16
6
8
An EPQ is worth exactly half an A Level at every grade. An AS that you later complete as a full A Level in the same subject does not count separately: only the A Level counts.
Worked exampleAdding up tariff points
A student has A Levels in Mathematics (A*), Physics (A) and Chemistry (B), an AS in Further Mathematics (grade b) and an EPQ (grade A). How many UCAS tariff points does she have?
A Levels:
AS Further Mathematics, grade b:
EPQ, grade A:
Total: points.
Try your own combination in the calculator: choose a grade for each qualification and watch the total change.
What offers look like
You apply through UCAS to up to five courses (four at most in medicine, dentistry or veterinary science). Each university replies with an offer or a rejection. Typical offers read like this:
“AAA”: three A grades, sometimes excluding certain subjects.
“AAA, including A in Mathematics and A in Physics”: grades plus named subjects, as for many engineering courses.
“ABB including Biology and Chemistry”: a common pattern for life sciences.
“112 UCAS points, including a C in Business”: a tariff offer, which BBC would meet ().
“AAB, or ABB with an A in the EPQ”: some universities lower an offer for a strong EPQ.
Conditional offer
A university place that becomes yours only if you meet stated conditions, usually particular grades. An unconditional offer has no grade conditions, usually because you already have your results.
From your offers you choose one firm choice and, if you wish, one insurance choice with lower grades as a backup. On results day, the university confirms your place if you meet the conditions. If you miss both, Clearing matches students without a place to courses that still have vacancies. Some courses also set admissions tests or interviews; see University applications and admissions tests.
Predicted grades
Universities usually decide before your final exams, so they rely on predictions.
Predicted grades
The grades your teachers expect you to achieve, entered on your UCAS application. Universities make most offers on the basis of predicted grades, because final results arrive after most decisions are made.
Teachers predict from evidence: classwork, mock exams, AS results if you have them, and the progress you have shown. A prediction below a course’s typical offer usually means no offer, so the evidence you give your teachers matters. Private candidates still need predicted grades and a reference; a tutor, a former teacher or a school can provide them. Studying as a private candidate explains how.
How to choose A Level subjects that fit the degree or career you want: typical requirements for popular courses, how many subjects to take, strong combinations, entry requirements, honest workload notes and the mistakes to avoid.
Work backwards from your goal
The safest way to choose is to start at the end:
Write down two or three degree courses you might want to study, even if you are unsure.
Look up each course’s subject requirements on the websites of a few universities you like.
Choose subjects that satisfy all of them, so you keep every option open.
Fill any remaining place with a subject you enjoy and can do well in.
University websites separate subjects that are required from those that are only preferred, and the difference matters.
Required subject
An A Level subject that a course insists on; without it, an application is normally rejected. Universities also list “preferred” or “recommended” subjects, which strengthen an application but are not compulsory.
Typical requirements for popular courses
If you want to study
Usually required
Recommended or useful
Also note
Medicine
Chemistry, and usually Biology
Maths or Physics
UCAT at most schools; interviews; apply by 15 October
Dentistry
Chemistry and Biology
Maths or Physics
UCAT at most schools; interviews; apply by 15 October
Veterinary science
Chemistry and Biology
Maths or Physics
Animal work experience expected; apply by 15 October
Engineering
Maths, and usually Physics
Further Maths, strongly recommended for top courses; Chemistry for chemical engineering
ESAT at some universities (e.g. Cambridge, Imperial, Oxford)
Computer science
Maths
Further Maths; Physics or Computer Science
The A Level of the same name is rarely required; TMUA at some universities
Mathematics or physics
Maths (and Physics for physics)
Further Maths, often expected at top universities
Admissions tests at some universities
Economics
Maths at most selective universities
Further Maths for the most competitive courses
The A Level of the same name is rarely required; TMUA at some universities
Business, management, accounting
Usually none
Maths, especially for finance and accounting
A Level Business is not required
Law
None in the UK
Essay subjects such as History, English Literature or a language
LNAT at several universities
Architecture
Often none
Art or Design; Maths or Physics
A portfolio of creative work is usually required
Psychology
Often none
Biology or Maths; some courses want one science
A psychology degree contains a lot of statistics
Natural sciences
Two or more of Maths, Physics, Chemistry and Biology
Maths for any physical science
Requirements depend on which sciences you plan to take
These are typical UK requirements. Every university sets its own, they change from year to year, and universities in other countries have different rules, so confirm the details on each course page for your year of entry. University applications and admissions tests explains UCAT, LNAT, TMUA and ESAT.
How many subjects?
Three A Levels is the standard, and university offers are almost always based on three. A fourth makes sense mainly when it is Further Mathematics, or when you are strong enough to take it without your other grades suffering. A fourth A Level rarely earns you a lower offer, but a weaker grade in one of your main three can cost you a place.
Engineering, mathematics, physics, computer science: the strongest choice for the most competitive courses
Biology, Chemistry, plus Maths or Physics
Medicine, dentistry, veterinary science, pharmacy, biomedical sciences, and still some physical sciences
Biology, Chemistry, Psychology
Medicine at universities that accept any third subject, psychology, life sciences
Maths, Economics, plus History or Further Maths
Economics, finance, management, politics
English Literature, History, plus a language or Politics
Law, history, politics, languages, journalism
Maths, Physics, Art
Architecture, design engineering
If you are not sure yet what you want to study, choose subjects that keep the most doors open:
Mathematics is the subject most often required or preferred: engineering, physics, computer science, economics and many sciences ask for it, and it helps with the statistics in psychology and biology.
Chemistry opens medicine, dentistry, veterinary science, pharmacy, biochemistry and chemical engineering.
One essay subject keeps law, the humanities and the social sciences possible.
It is easier to move from sciences to a humanities degree than the other way round, because most humanities degrees do not require particular subjects.
Entry requirements: are you ready?
Exam boards set no formal entry requirements, but schools do, and so does common sense: A Level builds directly on IGCSE. Typical school requirements look like this:
A Level subject
Typical GCSE/IGCSE grade needed
Mathematics
7 (A), sometimes 6 (B)
Further Mathematics
8 or 9 (A*), and a confident start in A Level Maths
Physics, Chemistry, Biology
6 or 7 (B or A) in that science, and at least 6 in Maths
Essay subjects (History, English Literature)
6 (B) in English and a related subject
New subjects (Economics, Psychology, Law)
Good grades in English and Maths; no earlier study needed
No A Level is easy at A* standard, but subjects are hard in different ways.
Mathematics demands fluent algebra and a lot of practice. Answers are right or wrong, so it needs less extended writing, which helps if English is your second language.
Further Mathematics roughly doubles your maths load. Take it only if you are strong at Maths and enjoy it; it also makes ordinary Maths feel easier.
Physics needs confident Maths and clear explanations of ideas, not just formulas.
Chemistry combines a large amount of content with calculations, and later topics build directly on earlier ones, so falling behind early is costly.
Biology has a large amount of content and precise vocabulary, with many longer written answers.
Essay subjects (History, English Literature, Economics, Business) need wide reading and plenty of writing practice. If English is not your first language, start practising timed writing early; it is entirely possible to reach the top grades.
Private candidates should check that their centre can run every part of the course, such as a science laboratory exam or coursework, before choosing.
How Zero to A* is organised, what each type of box means, how to search, track your progress and use the tools, and a simple learning loop that turns every chapter into exam marks.
How the guide is organised
Open the menu (the ☰ button on a phone, or the sidebar on a larger screen) to see every subject: the six main subjects (Mathematics, Physics, Chemistry, Biology, Engineering and Business), Economics and Accounting, short guides to other subjects, the preparation road, the toolbox and practice quizzes. Each subject is split into groups of chapters in a sensible order of study, usually starting with a course map.
The top of each chapter shows a level label, a short summary and, for subject chapters, the exams that test it and a realistic study time for a beginner. The level labels mean:
Label
What it means
Foundations
GCSE/IGCSE skills that A Level assumes. Start here if you are rusty.
AS Level
First-year content.
A Level (A2)
Second-year content, needed for the full A Level.
Guide, Reference, Summary
Course maps, the preparation road, formula sheets and short subject summaries.
Interactive
Tools such as the graph plotter and calculators.
Beyond A Level
Extension material, such as the tour of Further Mathematics.
Most chapters begin with Before you start links to the chapters you need first, and end with a Next link. On a wide screen, the On this page panel lists the sections and gives an estimated reading time.
The boxes, and how to use them
Box
What it holds
How to use it
Key term
An exact definition in examiner-quality wording
Learn it word for word: definitions are easy marks
Worked example
A full solution, with marks shown in exam-style ones
Cover the solution and try it first
Common mistake
An error examiners see every year
Check your own work against it
Exam technique
What a question wants and where the marks are
Apply it when you practise past papers
Board differences
Where Edexcel International, AQA or OCR differ from Cambridge
Read the parts for your board
Tip, Think of it like this
Shortcuts and everyday analogies
Use them to understand, then learn the precise version
Key facts, Formula
Facts and formulas to memorise
Turn them into flashcards
Practical skills
Methods, apparatus, safety and errors in experiments
Essential for practical and planning papers
Try it yourself
Practice questions, each with a hidden full answer
Attempt first; only then press Show answer
Quick check
Multiple-choice questions marked instantly
Read the explanation every time, even when you are right
Summary
The facts to remember from the chapter
Test yourself on them a week later
Here is what three of them look like.
Mark scheme
The document examiners use to award marks. It lists the accepted answers and shows exactly where each mark is earned, including method (M), accuracy (A) and independent (B) marks in Mathematics.
Worked exampleA rectangle is cm long and cm wide. Its area is . Find .3 marks
Form the equation: , so . B1
Factorise: . M1
So ; reject , because a length cannot be negative. A1
Check: a rectangle 8 cm long and 5 cm wide has area .
The mark labels follow the system used in Cambridge and Edexcel mathematics mark schemes:
M (method): for a correct method applied to the problem, even if you then make a slip.
A (accuracy): for a correct answer or step. You can only earn it if you have earned the method mark it depends on.
B (independent): for a correct result or statement that does not depend on a method.
So a correct answer with no working may not earn full marks, while a wrong answer with a sound method can still earn some. You will meet problems like this one in Quadratics.
Track your progress
At the end of every chapter there is a Mark as learned button. Press it when you can do the practice questions without help. Learned chapters get a tick in the menu, the progress bar fills up, and the home page shows how many chapters you have learned in each subject, with a link to pick up where you left off.
Search, glossary, tools and display
Search: press / from anywhere (or tap the search box) and type a topic, key term or formula name. Use the arrow keys and Enter to open a result, or Esc to close the list.
Glossary: every key-term card in the guide, in one alphabetical list that you can filter by subject: Glossary.
Display: the buttons at the top right switch between light and dark mode and cycle the text size from normal to large to extra large.
The learning loop
Use the same six steps for every chapter.
Work through each chapter in this order. If the quick check goes badly, go back to the worked examples before moving on. The dashed arrow is the review a week later that brings the chapter back into your memory.
Read the chapter with pen and paper. Write each key term in your own words, then compare it with the card.
Study the worked examples. Cover each solution, attempt it, then compare, noting where the marks are.
Try it yourself with the chapter closed. Open Show answer only after a real attempt, and mark your work honestly.
Take the quick check and read every explanation.
Mark as learned only when you can do the practice questions without help.
Revisit after a week. Redo a few questions and the quick check from memory. Each time you pull an idea back out of memory after a gap, you keep it for longer.
Use the guide with your syllabus, a textbook and past papers
Resource
Use it for
When
This guide
Learning each topic from zero, worked examples, practice
Throughout the course
Official syllabus
The final word on what can be examined
At the start, then as a checklist
A textbook written for your syllabus
Extra explanations and more questions
Alongside each chapter
Past papers, mark schemes, examiner reports
Real exam questions and how they are marked
Topic questions from the start; full timed papers in the final months
Download the syllabus for your board and exam year from the board’s website and tick off each learning outcome as you finish it. Facts in this guide were checked in October 2026, but if anything here disagrees with your official syllabus, the syllabus wins. For recommended books and websites, see The best resources by subject; for a past-paper method, see Phase 4: Past papers and mark schemes.
Try it yourselfCheck you know your way around
In a mark scheme, what is the difference between an M mark and an A mark?
Show answer
An M mark is for a correct method applied to the problem. An A mark is for an accurate answer or step, and it can only be awarded if the method mark it depends on has been earned.
You have just read a chapter and its worked examples. What should you do next, and why?
Show answer
Try the practice questions with the chapter closed, and only then check the answers. Recognising a solution is much easier than producing one, and producing answers from memory is what builds lasting understanding.
GuideExamsAll subjects · all boardsStudy time20 minutes to read
Six phases take you from your first day of study to results day. This page shows what each phase is for, how long it takes on three different timelines, the milestones you must not miss, and how to know when you are ready to move on.
The six phases
Every successful exam preparation, whatever the subject or board, passes through the same six phases. They are not strict boxes. Learning and practice run side by side, and past-paper work starts before the last topic is finished. But the order matters: you cannot practise what you have not learned, and timed papers only help once you know most of the content.
The six phases from your first study day to your first exam. Solid bars show the main focus; pale bars show work that runs alongside it. The phases overlap: you practise each topic as soon as you have learned it. "Find a centre" applies to private candidates.
Prepare the logistics, manage your time in the paper, then deal with results, reviews and resits
Avoids losing marks to nerves, admin or a missing plan B
The exam series and results day
Three tracks: how long each phase takes
How long you spend in each phase depends on how much time you have. The three most common situations are below. Find yours, then use the study planner to turn it into dated weeks.
2-year school route
12-month intensive
5–6-month resit or crash plan
Who it suits
Students in Years 12–13 at a school or college
Private candidates studying full-time, often straight after IGCSE
Students resitting, or who already know much of the content
Typical dates
September of Year 12 → May/June of Year 13
June → June, or October → October/November of the next year
June → October/November, or December → May/June
1. Foundations
3–4 weeks (the summer before, plus September)
3–4 weeks
1 week: a diagnostic test only
2. Learn
September of Year 12 to about February of Year 13
26–30 weeks
4–8 weeks, weak topics only
3. Practise
Every week, plus about 4 weeks of consolidation
Every week, plus about 3 weeks
Every week: the main activity
4. Past papers
Topic questions from Year 12; full papers January–April of Year 13
8–10 weeks
8–10 weeks
5. Final revision
8 weeks (April–May of Year 13)
6–8 weeks
3–4 weeks
6. Exam day
May/June; results in August
Your chosen series
Your chosen series
Study outside lessons
10–15 hours a week
30–36 hours a week
8–12 hours a week per subject
Milestones you must not miss
When
Milestone
Details
Before you start
Choose your subjects and board, and download the syllabus for your exam year
UCAS deadlines for 2027 entry: 15 October 2026 (Oxford, Cambridge and most medicine, dentistry and veterinary courses), 13 January 2027 (most other courses). See University applications
Several months before the exams
Exam entries close
Schools enter you; private candidates enter through their centre. Late entries cost extra
2–4 months before the first paper
Mock exams
A full set of papers in exam conditions
Start of phase 5
Past-paper target
At least 5 full papers per component done and marked; 8–12 by exam day
August (for June exams)
Results day
Cambridge results for the June 2026 series came out on 11 August 2026
How many hours a week?
Cambridge designs each A Level around 360 guided learning hours of teaching (about 180 for an AS Level). That is class time with a teacher; practice and revision come on top. As a rough guide:
At school: lessons plus 3–5 hours of your own study per subject per week, so 10–15 hours a week for three subjects. Raise this to 20 or more in the final 8 weeks.
Private candidate, full-time: 10–12 hours per subject per week, so 30–36 hours for three subjects. Treat it like a job: a fixed start time, fixed breaks, and one day a week off.
Resitting one or two subjects: 8–12 hours per subject per week.
Are you ready to move on?
Use these checks at the end of each phase. If you fail one, do not panic: spend another week or two on that phase, then check again.
Phase
You are ready to move on when…
1. Foundations
You score at least 8 out of 10 on each foundation self-check without looking anything up
2. Learn
For every syllabus learning outcome, you can explain the idea aloud and answer a basic question without notes
3. Practise
You score 70% or more on mixed topic questions a week after learning them, and the same mistakes have stopped appearing in your error log
4. Past papers
Your last three full papers, timed and honestly marked, reach your target grade
5. Final revision
Every topic in your tracker is green, and you can write out the key formulas and definitions from memory
InteractiveExamsAll subjects · all boardsStudy time30 minutes
Turn the six phases into a dated, week-by-week plan for your own exam date and subjects. Then learn how to read the plan, adapt it when life gets in the way, and fill in a weekly timetable, with three complete example plans.
A good plan answers two questions: is my goal realistic? and what should I do this week? Enter your exam date and your subjects below. The planner counts the weeks you have and spreads them across the six phases, so you can see when each phase should start and finish.
Build or check a plan by hand
The planner does the arithmetic, but you should understand it so that you can check the result, or redo it with a pen and a calendar.
Count the whole weeks from next Monday to your first paper.
Keep about one week in ten free as a buffer for illness, holidays and family events.
Working back from the exam, mark the last 6–8 weeks as final revision (phase 5) and the 4–6 weeks before that as full past papers (phase 4).
Mark the first 2–4 weeks as foundations (phase 1).
The weeks left in the middle are for learning (phase 2), with practice (phase 3) built into every week. Share them between your subjects’ topics.
Add the fixed dates: entry deadline, mocks, holidays and UCAS deadlines.
Then do a reality check. Each chapter of this guide shows a study time at the top (for example, 6–8 hours for Quadratics). Add about half as much again for practice, multiply by the number of topics, and compare the total with the hours your learning weeks give you. If it does not fit, you have three honest choices: study more hours a week, take fewer subjects in this series, or move to a later series. Never solve the problem by cutting phases 4 and 5, because that is where grades are made.
How to read your plan
Phase dates are targets, not walls. Phases overlap. Start past-paper questions on each topic as soon as you finish it, long before phase 4 officially begins.
The learning weeks are the tightest. If your plan gives you fewer than about 10 weeks per subject to learn the content, you are on an intensive track, and your weekly hours matter more than anything else.
Phase 5 has a minimum. Even a short plan needs at least 3–4 weeks of final revision.
Adapting the plan
Every plan goes wrong at some point. What matters is how you respond.
Situation
What to do
1–2 weeks behind
Use a buffer week, or add 3–5 hours a week for a month. Do not push every later phase back
3 or more weeks behind
Decide now: more hours, one subject moved to the next series, or an AS Level only this time (a Cambridge AS Level is a qualification in its own right)
Ahead of schedule
Do more mixed practice and past-paper questions; do not race ahead to new content
A topic takes twice as long as planned
Normal for hard topics. Borrow time from a buffer week, never from practice
Ill or away for a week
Restart with a weekly review; do not try to “catch up” by working through the night
Run the planner again once a month: it shows whether you are on track while there is still time to act.
Three example plans
A. School student: Year 12 from September 2026, exams in June 2028
Term
Main phases
Targets and milestones
Autumn 2026 (Year 12)
1 in September, then 2 and 3
Foundation self-checks in the first 3 weeks; weekly reviews from October; first unit tests in November
Spring 2027
2 and 3, plus past-paper questions by topic
Most AS content finished by Easter
Summer 2027
AS exams in May/June if your school uses staged assessment; otherwise school exams
Start the A Level content in June; in the holidays, research universities and draft your personal statement
Autumn 2027 (Year 13)
2 and 3 for the A Level content
UCAS: mid-October deadline for Oxford, Cambridge and medicine, January for most courses; admissions tests
Spring 2028
Content finished by February; mocks; then 4
From February, 1–2 timed papers per subject per week; at least 5 per component by Easter
Summer 2028
5 (the 8 weeks before your first paper), then 6
Exams in May/June; results in August 2028
B. Private candidate: October 2026 to June 2027, Mathematics, Physics and Chemistry
A full-time candidate studying about 36 hours a week for Cambridge 9709, 9702 and 9701 in the May/June 2027 series. Week 1 starts on Monday 5 October 2026, and the plan assumes a first paper in early May.
Weeks
Dates
Phase
Mathematics 9709
Physics 9702
Chemistry 9701
1–2
5–18 Oct
1
Algebra, powers, graphs
Units, standard form, rearranging
Formulas, equations, basic moles
3–8
19 Oct – 29 Nov
2 + 3
Pure 1
AS topics 1–6
AS topics 1–8
9–12
30 Nov – 27 Dec
2 + 3
Pure 3, first half
AS topics 7–11
AS topics 9–16
13
28 Dec – 3 Jan
Buffer
Rest and catch up
Rest and catch up
Rest and catch up
14–17
4–31 Jan 2027
2 + 3
Pure 3, second half
A Level topics 12–18
AS 17–22, A Level 23–26
18–21
1–28 Feb
2 + 3
Probability & Statistics 1, Mechanics
A Level topics 19–25
A Level topics 27–37
22–25
1–28 Mar
4
Two timed papers a week
Timed papers; Paper 5 planning practice
Timed papers; Paper 5 planning practice
26–30
29 Mar – 2 May
5
Final revision; full mocks in weeks 26 and 29
As Maths
As Maths
31 on
From 3 May
6
Exams
Exams
Exams
C. Resit student: sitting again in November
Emre sat A Level Chemistry in June 2027 and knows that Paper 4 went badly. He needs an A for a university application next year, so he starts preparing for the October/November 2027 series the week after his last June paper. Waiting for results day in August would cost him eight weeks. He plans 10–12 hours a week.
Weeks
When
Phase
Focus
1
Late June
1: diagnosis
One paper of each component done cold and marked; every topic sorted into red, amber or green; ask the centre for the November entry deadline
2–7
July to mid-August
2 + 3
Relearn two red topics a week; daily flashcards; topic questions after each one
Results day
August
–
Confirm the grade; ask the centre about a copy of the marked script; make sure the November entry is in
8–13
Mid-August to late September
4
One or two timed papers a week, marked the same day; every lost mark redone a week later
14–17
October
5
Amber topics, condensed notes, two full mocks
18 on
October/November
6
The exams; results in January
A weekly timetable template
Copy this pattern into a notebook or calendar and adapt it to your subjects. Each day mixes new learning with practice on earlier topics, and every week ends with a review.
Day
Private candidate, full-time (about 36 hours)
School student (about 9 hours, plus homework)
Monday
09:00–12:00 Maths, new topic · 13:30–16:30 Physics, new topic · 20 min flashcards
1 hour: redo today’s lesson examples without looking · 20 min flashcards
Tuesday
Chemistry, new topic · Maths, questions on Monday’s topic · flashcards
GuideExamsAll subjects · all boardsStudy time2–6 weeks (this phase)
Every A Level assumes skills from GCSE or IGCSE. This phase checks those skills with a short self-test and repairs the gaps before they slow you down. It also covers the academic English that second-language learners need.
What each A Level assumes
Cambridge writes its AS and A Level syllabuses for students who have studied the subject at IGCSE or GCSE (or an equivalent course). You do not need a top grade, but the core skills must be quick and reliable, because at A Level they are tools inside bigger problems, not the problem itself.
Mathematics, and the maths inside the sciences
Skill
You should be able to…
Repair it here
Number
Work with fractions, negative numbers, percentages and ratios without a calculator
The sciences use five maths skills constantly, so check these even if Mathematics is not one of your subjects.
Units and prefixes: converting mm to m, kJ to J, to , and knowing that .
Rearranging: making any letter the subject of a formula such as or .
Standard form: writing as and entering it correctly on a calculator.
Significant figures: giving an answer to the same number of significant figures as the data, usually 2 or 3.
Graphs: choosing scales, drawing a line of best fit, and finding a gradient from a large triangle.
Each science also has its own starting knowledge: atoms, ions and equations in Chemistry; forces, energy and circuits in Physics; cells, organs and basic genetics in Biology. Check and repair these with Physics from zero, Chemistry from zero and Biology from zero.
Business, Economics and other essay subjects
Essay subjects assume you can read a long case study quickly, pick out the useful facts and numbers, calculate a percentage change, and write a clear paragraph that makes one point and explains it. No prior Business or Economics course is needed, but if these skills feel slow, start with Business from zero and Writing top-band business answers.
The ten-minute self-check
Do these without a calculator or notes. Give yourself one mark for each fully correct answer. Score 8 or more and you can start phase 2; otherwise, repair the skills you missed first, using the links above.
Try it yourselfFoundation self-check (Mathematics and sciences)
Work out .
Show answer
Use a common denominator of 12: , which is .
Expand and simplify .
Show answer
.
Factorise .
Show answer
Two numbers that multiply to 12 and add to are and , so .
Make the subject of .
Show answer
, so .
Solve the simultaneous equations and .
Show answer
Adding them gives , so . Then .
Simplify .
Show answer
Add the powers when multiplying and subtract when dividing: .
Write in standard form, and give to 2 significant figures.
Show answer
and .
Convert 250 mm to metres, 3.5 kW to watts, and to .
Show answer
, and (because ).
Find the gradient and the -intercept of the line .
Show answer
Rearrange to : the gradient is 3 and the line crosses the -axis at .
A price rises from $40 to $46. Find the percentage increase.
Show answer
The increase is $6, and .
For essay subjects, the check is a list of “I can” statements. Be honest: tick one only if you could do it today, under time pressure.
I can read a one-page article in English in under five minutes and summarise it in three sentences.
I can write a paragraph that makes one point, explains why, and gives an example.
I can calculate a percentage change and say what it means in words.
I can read a simple table or chart and describe the trend with numbers.
I can define ten basic terms in my subject (for Business: profit, revenue, costs, market, stakeholder and so on) in one sentence each.
Academic English for second-language learners
Every paper is set and marked in English, and many students who know the science well lose marks to language. The good news: exam English is a small, learnable language of its own.
Learn the command words. “Describe” (say what happens) and “explain” (say why it happens) earn different marks. See Command words decoded.
Keep a vocabulary notebook. Four columns: the English term, the word in your own language, the definition in English, and an example sentence. Learn definitions as fixed phrases, exactly as the syllabus words them.
Write short, complete sentences. Examiners reward correct science and clear reasoning, not elegant style. One idea per sentence is safer than one long sentence with three ideas.
Read in English every day. Fifteen minutes of your textbook or a good subject website builds reading speed, which matters in long case-study and data questions.
Use the glossary in this guide: every key term from every chapter is collected there.
English term
Turkish
Definition in English
gradient
eğim
the change in divided by the change in
dynamic equilibrium
dinamik denge
forward and reverse reactions happen at equal rates, so concentrations stay constant
demand
talep
the quantity buyers are willing and able to buy at each price
evaluate
değerlendirmek
judge the strengths and weaknesses, then reach a conclusion
How long should phase 1 take?
Your self-check result
Plan
8–10, and quick
About 2 weeks: repair anything you missed and read the “from zero” chapter for each science, then start phase 2
6–7
3–4 weeks: work through the foundation chapters for every skill you missed, then redo the self-check
5 or fewer, or no IGCSE in the subject
5–6 weeks: work through all the foundation chapters for that subject in order
Any score, if English is your second language
Add 15 minutes of subject reading in English every day, all the way to the exam
GuideExamsAll subjects · all boardsStudy timeAbout half of your preparation time
How to work through the syllabus so that the ideas stay: studying each chapter actively, turning the syllabus into a checklist, making notes that help, choosing a textbook, keeping a steady pace, and getting unstuck.
How to study one chapter actively
Passive study (reading, highlighting, copying) feels comfortable because the material looks familiar while it is in front of you. Active study makes your brain produce the ideas itself, which is harder in the moment and far more effective. Use this routine for every chapter in this guide or your textbook.
Preview (5 minutes). Read the summary, the headings and the key-term cards. Ask yourself what the topic is for.
Study one section at a time. At the end of each section, look away and explain it aloud or on paper in your own words.
Work through each worked example with the solution covered. Attempt each step before you reveal it.
Answer the practice questions without notes, then check them against the full answers and mark honestly.
Write your notes from memory, then compare them with the chapter and fill the gaps in a different colour.
Finish with the quick check, and make flashcards from the key terms and formulas.
Work in focused blocks of 25–50 minutes with a short break between them, and keep your phone in another room. The timer below helps.
Turn the syllabus into a checklist
The syllabus for your exam year is the official list of everything that can be examined. Download it free from your board’s website. In the subject content section, each topic is broken into numbered learning outcomes, short statements of what you must be able to do. Copy them into a tracker, in a notebook or a spreadsheet, and colour each one as you go.
Learning outcome (Quadratics, Cambridge Paper 1, in our words)
Learned
Practised
Exam-ready
Complete the square and use it to find the vertex
Yes
Yes
Green
Use the discriminant to decide how many real roots there are
Yes
Yes
Amber
Solve quadratic inequalities
Yes
No
Red
Solve one linear and one quadratic equation simultaneously
No
No
Red
Red: not learned yet, or you cannot do it even with notes.
Amber: you can do it with notes, or slowly.
Green: you can do it without notes, under time pressure, at least a week after learning it.
The tracker becomes the backbone of your whole preparation. In phase 5 it tells you exactly which topics need work.
Making notes that help
Good notes are short, written partly from memory, and built for testing yourself later. Three formats work well. Use whichever suits the topic.
Method
How it works
Best for
Cornell notes
A page split into a cue column, a notes column and a summary strip
First notes on a topic: definitions, explanations, methods
Concept map
The main idea in the centre, with branches and labelled links
Connections: organic reactions, the cardiovascular system, macroeconomic policy
One-page summary
One sheet per topic: key terms, formulas, one diagram, one worked example, common mistakes
The end of a topic, and final revision
A Cornell page has three parts. You write the notes column while you study, add cue questions afterwards, and finish with a short summary. Covering the notes and answering the cues turns your notes into a self-test.
Choosing a textbook
One good textbook per subject, this guide and the past papers are enough. Collecting more resources feels productive, but it is usually a way of avoiding practice.
Cambridge: look for books that carry Cambridge’s endorsement mark on the cover. Cambridge lists endorsed resources on its website, from publishers such as Cambridge University Press and Hodder Education.
Edexcel IAL: Pearson publishes its own student books for the IAL specifications.
AQA and OCR: each board approves or endorses textbooks from several publishers for its own specifications.
Check the syllabus years. A book written for an older syllabus can miss new topics or include ones that were removed. Compare its contents with the current syllabus before you buy, especially second-hand.
Pacing: how fast should you go?
Your plan from the study planner gives you a number of learning weeks. Divide the topics by the weeks to get your weekly target. For Cambridge, the number of topics in the syllabus is:
Subject (Cambridge)
Topics or sections
Topics per week with 20 learning weeks
Mathematics 9709 (Pure 1, Pure 3, Mechanics, Probability & Statistics 1)
8 + 9 + 5 + 5 = 27
about 1.4
Physics 9702
25 (1–11 AS, 12–25 A Level)
about 1.3
Chemistry 9701
37 (1–22 AS, 23–37 A Level)
about 1.9
Biology 9700
19 (1–11 AS, 12–19 A Level)
about 1
Topics differ in size, so treat these as averages. Study all your subjects every week rather than one subject per month: switching between subjects is tiring at first, but it gives each topic time to settle and keeps every subject fresh. If a topic takes more than one and a half times its budget, mark it amber, move on, and come back to it in your buffer week.
Flashcards as you go
Make flashcards on the day you finish each chapter, while you still know what matters. Aim for 5–15 cards per chapter:
one fact per card, written as a question: “What is the discriminant of ?”
definitions word for word on the back, exactly as the syllabus uses them;
“why” questions as well as “what” questions: “Why does the rate of reaction increase with temperature?”
Paper cards in a box or a free flashcard app both work. How and when to review them is in Phase 3.
The weekly review
Once a week, for 30–45 minutes, step back from new content.
Test yourself for 15 minutes, without notes, on this week’s topics and one older topic.
Update the colours in your tracker.
Read your error log: is any mistake appearing again and again?
Compare where you are with your plan, and write next week’s topics into your timetable.
When you are stuck
Being stuck is a normal part of learning, not a sign that you cannot do the subject. Work down this list.
Slow down. Reread the section, then copy out the worked example line by line, asking why each step follows from the one before.
Go back one step. Most stuck points are really an earlier gap. Follow the “Before you start” link at the top of the chapter.
Find a different explanation: your textbook, a video, or a friend who explains it in other words.
Ask a precise question. “I don’t understand moles” is hard to answer; “I don’t see why we divide by 2 in line 3” is easy. Teachers, study groups and online forums all respond better to precise questions.
Set a time limit. After 30 minutes stuck, mark the topic red, move on, and return in two days. Sleep often does the work for you.
GuideExamsAll subjects · all boardsStudy timeAlongside phase 2, then 3–6 weeks
Practice turns understanding into marks. This phase uses retrieval practice, spaced repetition, flashcards and mixed questions, with an error log that makes sure each mistake happens only once.
Retrieval practice: test, don’t reread
Retrieval practice
Learning by recalling information from memory, for example by answering questions or writing down everything you remember, instead of reading the material again.
Every time you pull an idea out of memory, the memory becomes stronger and easier to find next time. Rereading does not do this, because the answer is already in front of you. A large 2013 review of ten common study techniques rated practice testing and spaced practice as the two most useful, and rereading and highlighting among the least useful.
Ways to practise retrieval:
Blank page: write everything you remember about a topic on a blank sheet, then check it against your notes and add what you missed in a different colour.
Flashcards, answered aloud or on paper before you turn the card over.
Quizzes: the quick check at the end of each chapter, and the mixed practice quizzes.
Exam-style questions, from your textbook, this guide and past papers.
Spaced repetition: when to review
Spaced repetition
Reviewing material at increasing intervals (for example after 1, 3, 7, 14 and 30 days), so that each review happens just as the memory starts to fade.
A schematic picture of forgetting. Without review (dashed), most of a new topic is gone within a week. Each review (dot) brings recall back up, and the memory then fades more slowly, so the gaps between reviews can grow.
Review a topic about 1, 3, 7, 14 and 30 days after you first learn it, then once a month until the exam. For example, for a topic learned on Monday 12 October 2026:
Review
Day
Date
What to do (5–15 minutes)
1st
1
Tuesday 13 October
Blank page, then check
2nd
3
Thursday 15 October
Flashcards for the topic
3rd
7
Monday 19 October
3–4 exam-style questions
4th
14
Monday 26 October
Quiz or mixed questions
5th
30
Wednesday 11 November
A past-paper question, timed
Every review is a test, never a reread. If a review goes badly, restart the cycle for that topic from day 1. Write the review dates in your diary on the day you learn the topic, so you never have to remember them.
Flashcards that work
The Leitner system organises paper flashcards in five boxes. Box 1 is reviewed every day, box 2 every 3 days, box 3 every week, box 4 every 2 weeks and box 5 every month. A card you answer correctly moves up one box; a card you get wrong goes back to box 1. Flashcard apps such as Anki do the same scheduling automatically.
Answer before you flip. Say or write the full answer first. A vague “I knew that” counts as wrong.
Be strict. Half right is wrong for a definition, because the mark scheme wants the key words.
Mix card types: definitions, formulas, “why” questions, and blank diagrams to label.
Interleaving: mix your topics
Interleaving
Practising a mixture of different topics or question types in one session, so that you must decide which method each question needs, instead of practising one method many times in a row.
Blocked practice
Interleaved practice
What it looks like
20 questions on completing the square
12 questions mixing quadratics, functions, series and trigonometry
How it feels
Smooth and fast
Slower and harder
What it trains
Repeating a method you already know is needed
Choosing the right method, which is what the exam demands
When to use it
The first practice on a new topic
Everything after that
Exam questions never tell you which chapter they come from. Once you have learned three or four topics, make most of your practice interleaved.
Topic questions
After each topic, climb this ladder: textbook exercises, then the practice questions in this guide, then past-paper questions on that topic. Collections of Cambridge questions sorted by topic (“topical past papers”) are widely available, and they let you practise a topic in exam style long before you sit full papers. Aim for at least 10–15 exam-style questions on each topic, more for big topics, before you call it green.
The error log
The error log is the most valuable document you will make. Every mark you lose goes into it, with the reason and a rule to stop it happening again.
Date
Question
Topic
Marks lost
What went wrong
Type
Rule for next time
Redo on
12 Oct
Maths practice Q4
Quadratics
2
Used when
Careless slip
Write , , with their signs before substituting
19 Oct
14 Oct
Physics topic test Q2
Kinematics
2
Did not convert to
Method
Convert every quantity to SI units first
21 Oct
15 Oct
Chemistry worksheet Q5
Moles
3
Ignored the 1 : 2 ratio in the equation
Knowledge
Always use the mole ratio from the balanced equation
22 Oct
20 Oct
Business 12-mark question
Motivation
4
No judgement at the end
Exam technique
End with a justified conclusion that answers the question
27 Oct
Use five types: knowledge (you did not know it), method (you knew the topic but chose or applied the wrong method), reading (you misread the question), careless slip, and exam technique (timing, missing working, no evaluation). Once a week, read the whole log and count the types. If most are knowledge errors, go back to phase 2 for those topics. If most are careless slips, slow down and check every answer. Then redo each logged question on its redo date, without looking at your old answer.
Calculation subjects and essay subjects
Calculations (Maths, Physics, Chemistry)
Do many questions: volume matters.
Write full working, as in the exam: method marks need visible steps.
Check units and significant figures at the end of every answer.
Redo wrong questions from a blank page, not by reading the solution.
Time yourself from early on: about 1.5 minutes per mark in Cambridge Maths.
Essays (Business, Economics, long-answer Biology)
Plan every answer for 3–5 minutes before writing.
Build each paragraph: knowledge, application, analysis, evaluation.
Write timed answers, then mark them against the mark scheme’s levels.
Collect strong chains of reasoning (“this leads to… which means…”).
See Writing top-band business answers.
Measuring readiness
Test each topic with mixed questions a week or more after learning it, and record your score.
Score
Meaning
What to do
80% or more
Exam-ready
Mark it green; review it once a month
60–79%
Nearly there
Mark it amber; work through its error-log entries and do more topic questions
Below 60%
Not secure yet
Mark it red; go back to the chapter (phase 2)
You are ready to give past papers most of your time when your average across mixed sets is 70% or more, no topic is red, and the same mistakes have stopped appearing in your error log.
GuideExamsAll subjects · all boardsStudy time8–12 weeks
Where to find official past papers, mark schemes, examiner reports and grade thresholds; how many papers to do and in what order; how to sit them under timed conditions and mark them honestly; and the redo cycle that turns each lost mark into a gained one.
Where to find them
Use the official sources first. Each board publishes four kinds of document for each exam series: question papers, mark schemes, examiner reports (what candidates did well and badly) and grade thresholds or grade boundaries (the raw marks needed for each grade).
Cambridge publishes some past papers on its website. The full archive is on the School Support Hub, which registered schools use; private candidates can ask their exam centre
Past papers in the assessment section of each qualification
With every board, the newest series is sometimes available only to teachers for a while. Many other websites copy the official files. If you use one, make sure each paper comes with its matching mark scheme.
Reading Cambridge file names
Cambridge files have names like 9709_s25_qp_12. Once you can read them, finding the right paper takes seconds.
Part
Meaning
9709
The syllabus code (Mathematics)
s25
The series and year: s = May/June, w = October/November, m = February/March; 25 = 2025
qp, ms, er, gt
Question paper, mark scheme, examiner report, grade thresholds
12
Paper 1, variant 2
Cambridge sets several versions (variants) of most papers in each series for different time zones. That is why there are so many papers to practise with: a few recent years give you 20 or more versions of some components.
How many, and in what order?
Aim for 8–12 full papers per component by exam day, plus topic questions, and more for components you find hard. Use them in this order:
Older papers (about 6–10 years old): cut into topic questions during phase 3.
Middle years: full timed papers in phase 4.
The two or three most recent series: saved for full mocks in phase 5.
Before you start, read the “changes to the syllabus” page at the front of your syllabus. Papers written before a syllabus change can include topics that are no longer examined, and miss new ones. Skip those questions, or replace them with questions from this guide.
Sitting a paper under timed conditions
Choose the same time of day as the real exam, a quiet desk, and only the permitted equipment: pens, pencil, ruler, an allowed calculator, and the formula list or data booklet your board provides (for Cambridge Mathematics, the list called MF19).
Put your phone in another room and set a timer for the real length of the paper.
Read the front cover as if it were the real exam.
Work to time. Cambridge Mathematics Paper 1 has 75 marks in 1 hour 50 minutes, so allow about 1.5 minutes per mark.
When time runs out, draw a line. You may finish in a different colour to see what more time would give, but count only the marks above the line.
Marking honestly
Mark the paper the same day, or the next, with the official mark scheme. Be strict: if your answer does not clearly contain the point the mark scheme describes, do not give yourself the mark. Generous self-marking only hides the problems you need to fix.
Mathematics mark schemes use a short code. Learn it, because it tells you exactly how marks are earned:
Code
Meaning
M1
A method mark, for a correct method applied to the problem
A1
An accuracy mark: only possible if the related M mark is earned
B1
An independent mark for a correct answer or statement
FT
Follow through: credit for correct work that uses your own earlier wrong answer
CAO
Correct answer only
OE
Or equivalent: another correct form of the answer is accepted
AWRT
Answer which rounds to the value given
AG
Answer given in the question: every step must be shown
Science mark schemes list the acceptable answers for each mark point, and essay mark schemes describe levels: what an answer must show to reach each band of marks. Then turn your raw mark into a grade with the grade thresholds for that series and variant. Thresholds change from series to series because some papers are harder than others, so always use the matching one. Aim to be comfortably above your target grade, not just on it.
Read the examiner report
For every paper you sit, read the examiner report’s comments on it. Examiners describe the common errors, the misunderstandings they saw most often, and what the best answers did. Ten minutes with the report often explains a lost mark better than the mark scheme does. Copy anything that applies to you into your error log.
Topic by topic, or full papers?
Topic-by-topic questions
Full papers
When
Phase 3 and the start of phase 4
Most of phase 4, and all of phase 5
What it trains
Depth in one topic; finding gaps quickly
Timing, stamina, switching between topics, choosing methods
The risk
The topic heading tells you which method to use
One paper cannot cover every topic
Use both. Start phase 4 with one full paper per component per week, plus topic sets for your weakest areas. Build up to two or three full papers a week in the last month of the phase.
The redo cycle
Sit the paper, timed.
Mark it honestly, the same day.
Log every lost mark in your error log, with its type and a rule for next time.
Relearn: for a knowledge gap, go back to the chapter; for a method gap, do three to five similar questions.
Redo every question that lost marks, from a blank page, a week later.
Track your scores for each component, with the grade thresholds next to them, so you can see the trend.
GuideExamsAll subjects · all boardsStudy timeThe last 6–8 weeks
A week-by-week plan for the last eight weeks before your first paper, with daily timetables, how to run your own mocks, how to condense your notes, formula practice, sleep, and the habits to avoid.
The last eight weeks, week by week
Count the weeks back from your first paper. If you have only six weeks, combine weeks 8 and 7, and weeks 6 and 5.
Weeks to go
Main focus
Full papers per subject
Also this week
8
Audit: update your tracker, list every red and amber topic, plan the eight weeks
1, as a baseline
Get the final exam timetable and mark every paper on your plan
7
Red topics, first half: relearn, then practise
1
Condensed notes for each red topic
6
Red topics, second half
1–2
Start daily formula and definition drills
5
Mock week: a full set of papers in exam conditions
A full set
Mark everything; update the error log
4
Fix the mock: relearn every topic that lost marks, then amber topics
2
Finish a one-page summary for every topic
3
Timed papers from recent series
2–3
The redo cycle after every paper
2
Final mocks with the newest papers, in the order of your exams
2–3
Shift your sleep to fit the exam start times
1
Light review: summaries, flashcards, error-log rules; nothing new
Parts of papers only
Logistics: route, equipment, ID, statement of entry
The last two weeks
Follow the timetable. The subject you sit first gets the first mocks and the most review time in the final days.
Sit papers at exam times. If your papers start in the morning, do your mocks in the morning, so your brain is used to working hard at that hour.
Read your rules daily. Read the “rule for next time” column of your error log every day. It is a personal list of the traps you fall into.
Make one sheet per paper: the formulas, definitions and mistakes that matter most for that paper. Read it the evening before.
Plan the gaps between papers. With three days between two papers, for example: one timed paper on day 1, weak topics on day 2, light review on day 3.
Daily timetable templates
On a full revision day (study leave, weekends, or every day for a private candidate):
Time
Activity
08:30–09:00
Flashcards and error-log rules
09:00–10:50
A timed paper (subject A)
10:50–11:10
Break, away from your desk
11:10–12:30
Mark the paper and log every lost mark
12:30–13:30
Lunch, away from screens
13:30–15:00
Relearn the topics the morning’s paper exposed
15:00–15:20
Break and some movement
15:20–16:50
Subject B: topic questions on a weak topic
16:50–19:00
Exercise, free time, dinner
19:00–20:00
Subject C: condensed notes and flashcards
From 20:00
Free time; screens off an hour before bed
That is about 7.5 hours of real work. More than this, day after day, usually means less is learned per hour.
On a school day, add about two hours after lessons:
Time
Activity
17:00–17:45
Topic questions on a red or amber topic
18:00–18:45
One timed section of a past paper
19:45–20:30
Mark it, update the error log, 20 minutes of flashcards
Running your own mocks
If your school runs mock exams, treat them as the real thing. If you study alone, run your own:
the same length, the same time of day and the same rules as the real exam;
a clear table, no notes, phone in another room, and if possible someone in the room acting as the invigilator;
the whole set of papers over a few days, in the same order as your real timetable;
marking within 24 hours, followed by the redo cycle from Phase 4.
A disappointing mock is useful: it shows you the problems while there is still time to fix them. Treat the score as information, not as a judgement of you.
Condensing your notes
Condensing works because every step forces you to choose what matters and to recall it.
Chapter notes from phase 2.
One page per topic: write it from memory first, then check and fill the gaps.
One page per paper: only the formulas, definitions and traps for that paper.
A final card per paper to read on the evening before.
Formulas, definitions and data
Get a clean copy of what your board provides in the exam: for Cambridge, the formula list MF19 for Mathematics, the data and formulae pages printed in each Physics paper, and the Data Booklet for Chemistry. Learn what is on it, and where, so you never waste time searching. Then memorise everything else. Each day in the last three weeks, write out every formula and definition for one paper on a blank page in five minutes, check it, and correct it. Our sheets help: Maths, Physics, Chemistry, Biology and Business, economics and accounting.
Sleep, food and exercise
Your brain stores the day’s learning while you sleep, so sleep is part of revision, not time taken away from it. Most teenagers need 8–10 hours a night. An all-nighter before a paper makes you slower and more error-prone the next day. Two weeks before the exams, move your bedtime and wake-up time so that you are alert at the time your papers start. A daily walk or other exercise helps you sleep and manage stress, and avoiding caffeine after mid-afternoon protects your sleep. There is more in Motivation, sleep and stress.
What not to do
Don’t
Do instead
Start new textbooks, courses or apps
Stick to your notes, this guide and past papers
Reread your notes for hours
Test yourself: papers, flashcards, blank pages
Revise only your favourite topics
Work from your red and amber list
Sit papers without marking them
Mark every paper within 24 hours
Use the newest papers too early
Save them for the last three weeks
Stay up late to “finish” a topic
Keep the same bedtime every night
Compare hours with friends or on social media
Compare your scores with your own scores last week
GuideExamsAll subjects · all boardsStudy timeRead it a week before your first paper
Checklists for the night before and the morning of each exam; how to read the paper, manage your time and keep going when you are stuck; and what happens next: results day, enquiries about results, resits, UCAS Clearing and a plan B.
The night before
Check the details on your statement of entry, the document from your centre that lists your candidate number and each paper’s date and start time. Confirm the time and the room, and set two alarms.
Pack your bag:
photo ID (a passport or national ID card): private candidates will not be allowed in without it;
your statement of entry;
a permitted calculator with fresh batteries;
at least three black pens, two pencils, an eraser, a sharpener and a ruler, plus a protractor and compasses for Mathematics;
a clear pencil case and a clear water bottle, if your centre allows them.
Check your calculator is allowed. Rules differ by board and subject. For example, Cambridge Mathematics does not allow graphic calculators or calculators that can do algebra.
Read your one-page sheet for the paper, then stop. Do not start anything new.
Plan your route, with time to spare for traffic, and go to bed at your normal time.
The morning
Eat breakfast and drink some water, even if you are nervous.
Arrive at least 30 minutes early. Private candidates should check the arrival time their centre gives.
Take a last look at your one-page sheet, then put it away before you enter the room.
Leave your phone, smartwatch and any other device at home or hand them in as instructed. Having one with you in the exam room can count as malpractice, even if it is switched off.
Go to the toilet before the exam starts.
In the exam
Reading the paper
Write your name, centre number and candidate number exactly as they appear on your statement of entry.
Read the front cover: the number of questions, the total marks, and whether you must answer every question or choose some.
If you have time, look through the whole paper for a minute so that nothing surprises you later.
Read each question twice. Underline the command word and the key data.
Look at the marks for each part and the space given for the answer. Both tell you how much the examiner expects.
Timing: minutes per mark
Divide the time by the total marks to get your pace. For example, Cambridge Mathematics Paper 1 has 75 marks in 1 hour 50 minutes, which is about 1.5 minutes per mark, so a 6-mark question deserves about 9 minutes.
Cambridge paper
Marks
Time
Minutes per mark
Mathematics Paper 1 or 3
75
1 h 50 min
about 1.5
Mathematics Paper 2, 4, 5 or 6
50
1 h 15 min
1.5
Physics, Chemistry or Biology Paper 1 (multiple choice)
40
1 h 15 min
just under 2 per question
Physics, Chemistry or Biology Paper 2 (AS structured)
60
1 h 15 min
1.25
Physics, Chemistry or Biology Paper 4 (A Level structured)
100
2 h
1.2
Business Paper 2
60
1 h 30 min
1.5
Economics Paper 2
60
2 h
2
To keep 10 minutes for checking in Mathematics Paper 1, work at about 1.3 minutes per mark. Edexcel IAL, AQA and OCR papers have different lengths, so work out your own pace from the front cover of a past paper.
When you are stuck
Move on once you have spent about twice the time the marks deserve. Circle the question number and come back at the end.
Write what you know. A formula, a labelled diagram or the first line of working can earn method marks.
Use answers given in the question. If you cannot show that in part (a), use in part (b) anyway: the later marks are still available.
Never leave a multiple-choice question blank. No marks are taken away for wrong answers, so eliminate what you can and choose.
If panic starts, put your pen down, breathe slowly for thirty seconds, and read the next question. One hard question is only a few marks.
Need more space? Use the extra page at the back of the booklet, and write the question number clearly.
The last ten minutes
Check that you answered what was asked (“exact”, “in terms of ”, “to 3 significant figures”), that every answer has a unit where one is needed, that no part is left blank, and that your multiple-choice answer sheet is complete.
After each paper
Leave the room and do not go through the answers with friends: it only creates worry about marks you can no longer change. Eat, rest, then spend thirty minutes planning for your next paper. If something affected your performance, such as illness, a family emergency or a disturbance in the room, tell your exams officer the same day. Your centre may be able to apply for special consideration, but only within a short time after the exam.
Results day
When: Cambridge results for the May/June series come out in August (the June 2026 results were released on 11 August 2026), and results for the October/November series in January. Each Edexcel IAL series has its own results day; check Pearson’s key dates.
How: your centre gives you your results, and some centres also give you a login to see them online.
University places: if you applied through UCAS, check UCAS Hub on results day to see whether your place is confirmed. Before the exams, ask your centre whether it will send your results to UCAS.
Read your results calmly, and decide what to do before you phone anyone.
Enquiries about results
If a grade is lower than you expected, your centre can ask the board to check it. Cambridge calls these enquiries about results; Pearson, AQA and OCR call them post-results services or reviews of results. The usual options are:
a clerical re-check that all the marks were counted and added correctly;
a review of marking, with a faster priority service when a university place depends on the result;
a copy of your marked script, which shows exactly where you lost marks. This is very useful if you plan to resit.
Every service has a fee and a strict deadline, and it must be requested through your centre, including by private candidates. A review looks for marking errors; it is not a second marking, and marks can go down as well as up. It is usually worth it only if you believe you are close to a grade boundary.
Resits
Board
When you can resit
How it works
Cambridge International
October/November (results in January), or the next May/June
You normally sit all the papers of the AS or A Level again; ask your centre whether anything can be carried forward, such as an AS result within 13 months
Pearson Edexcel IAL
January, May/June or October
Modular: you can resit only the units you choose, and your best result for each unit counts
AQA and OCR (UK A Levels)
May/June only
Linear: you sit all the papers again, a year later
Resit when a university offer or a career depends on the grade, and when you know exactly what went wrong. If your university has already accepted you, the time is usually better spent preparing for the course. If you decide to resit, read the study planner example for a resit student, and start straight away.
UCAS Clearing and plan B
If you miss the conditions of your offer, do not assume the worst. Universities sometimes accept students who just miss their grades, so check UCAS Hub first, and phone the admissions office if your status is unclear (have your UCAS Personal ID ready). If you have no place, Clearing lets you apply for university courses that still have places. You phone universities, and if one makes you an offer, you add it as your Clearing choice in UCAS Hub. Clearing is busiest on A Level results day and in the days after.
Other good plan B routes include:
a course with a foundation year, which has lower entry requirements;
a gap year with resits, then a new application with real grades instead of predicted ones;
universities in Turkey or other countries that accept A Level results;
GuideExamsAll boards · all subjectsStudy time45 minutes to read, then use all year
Research shows that some popular study habits, such as rereading and highlighting, do very little. This chapter shows you the methods that do work (testing yourself, spacing and mixing your practice) and how to build them into a normal week.
In 2013 the psychologist John Dunlosky and four colleagues reviewed the research on ten popular learning techniques and rated how useful each one is for real students.
Rating
Technique
What it means
High
Practice testing
Recalling or answering questions without looking
High
Distributed practice
Spreading study of a topic over days or weeks
Moderate
Elaborative interrogation
Asking yourself “why is this true?”
Moderate
Self-explanation
Explaining each step of a solution to yourself
Moderate
Interleaved practice
Mixing problem types in one session
Low
Summarising
Writing shorter versions of a text
Low
Highlighting
Marking key words while reading
Low
Keyword mnemonics
Linking new words to memorable images
Low
Imagery for text
Picturing what you read
Low
Rereading
Reading the same notes again
“Low” does not mean useless; it means a small benefit for the time it takes. Yet rereading and highlighting are the most popular study habits of all. They feel good because familiar words make your brain mistake “I recognise this” for “I know this”, an illusion of competence. The exam gives you a blank space, not the page, so producing knowledge from memory is what you must practise.
Retrieval practice: test yourself first
Retrieval practice
Learning by recalling information from memory (for example by answering questions or writing everything you remember on a topic) instead of rereading it. Each successful recall makes the memory stronger and easier to find later.
Retrieval works even when you get answers wrong, as long as you check and correct them straight away. Good ways to retrieve:
Blank-page recall (“blurting”). Close your notes and write everything you remember about a topic for 10 minutes. Then fill the gaps from your notes in a different colour. The coloured parts are your revision list.
Chapter questions. Do the practice questions at the end of each chapter here without looking back.
Spreading study of the same material over several sessions separated by gaps of days or weeks, instead of doing it all at once. Also called distributed practice.
Memory fades quickly after you first learn something, and each recall after a gap makes it fade more slowly. A useful rule of thumb is to review a new topic about 1 day, 3 days, 1 week, 2 weeks and 1 month after first learning it. The exact gaps matter less than the habit of coming back.
The opposite is cramming: everything in one long session just before a test. It can get you through tomorrow’s test, but most of it is gone weeks later, and A Levels examine two years of content at the end.
Interleaving: mix your practice
Interleaving
Mixing different topics or types of problem within one practice session (for example differentiation, vectors and probability), so that you must decide which method each question needs.
When you do twenty questions on one method in a row (blocked practice), you know the method before you read the question. In the exam, nobody tells you, and interleaving trains that choice. Use blocked practice for a brand-new topic, then switch to mixed sets once the basic questions feel easy.
Making ideas stick: elaboration, examples and pictures
Elaboration means connecting a new idea to what you already know by asking “why?” and “how?”. Why does a higher temperature speed up a reaction? How does that link to activation energy? Every connection is another route your memory can use.
Concrete examples make abstract ideas easy to picture. “Price elastic demand” is hard to remember; “when one brand of crisps raises its price, many buyers switch brands” is easy. Collect one or two examples of your own for every definition.
Dual coding means combining words with visuals. Draw blood flow through the heart, a supply and demand diagram or a flowchart of protein synthesis, and label it from memory. Words and pictures give you two routes to the same idea.
Worked examples, then fade them
When you are a beginner, solving problems alone can overload you, so study a worked example first. Then remove the support step by step:
Stage
What you do
1. Study
Read a full worked example. Explain each step to yourself: why this step, why now?
2. Complete
Try a similar example where the last steps are hidden. Finish it.
3. Solo
Do a similar question with no help, then check against a full solution.
4. Mixed
Do the same type of question inside a mixed set, under time pressure.
Once you reach stage 4 easily, stop studying examples for that topic and spend your time on questions.
The Feynman technique
The physicist Richard Feynman was famous for explaining hard ideas in simple words. This technique finds exactly where your understanding breaks.
Choose one concept, for example “moles” or “opportunity cost”.
Explain it out loud or on paper as if teaching a younger student. Use plain words and an example.
Notice where you hesitate, use jargon you cannot explain, or say “it just is”. Those are your gaps.
Go back to your notes or the chapter and fix those gaps only.
Explain it again, more simply. Finish with the exact syllabus definition.
Spaced-repetition flashcards
Flashcards combine retrieval and spacing. A spaced-repetition app such as Anki (free on computers, Android and the web) shows each card just before you are likely to forget it: cards you know appear rarely, and cards you miss come back soon.
One fact per card. “State the units of the Planck constant” is a good card; “quantum physics” is not.
Make your own cards. Writing them is learning, and shared decks often do not match your syllabus.
Use cards for exact facts: definitions, equations, units, reagents and conditions. Use diagrams and questions for processes and problem-solving.
Review every day, and add only about 10 to 20 new cards a day so reviews do not pile up.
On paper, use the Leitner system: review box 1 daily, box 2 every three days and box 3 weekly. A correct card moves up a box; a wrong card goes back to box 1.
Focus: your phone is the biggest problem
Every time you check a message, it takes minutes to regain full concentration, and a phone on the desk distracts you even when it is silent.
Put the phone in another room, or use a focus mode that blocks apps while you study.
Choose one specific task before you start: “Questions 1 to 6 on the discriminant”, not “do maths”.
Study at the same place and time when you can. Routine makes starting easier.
The Pomodoro technique makes this easy: 25 minutes of full focus, then a 5-minute break; after four rounds, a longer break of 15 to 30 minutes. Try it now with the timer below: pick one task, press start, and do not touch your phone until it rings. As your focus grows, you can stretch the blocks to 40 or 50 minutes.
Maths and science versus essay subjects
The same principles apply everywhere, but what you practise is different.
For essay subjects, write full answers regularly and compare them with the mark scheme’s levels; see Writing top-band business answers.
Studying with friends
Group study works when everyone tests and explains, and fails when it turns into chatting. Keep groups to two to four people, agree a topic and a finishing time, and use the time to quiz each other, take turns teaching a topic (the Feynman technique with a real audience), mark each other’s answers with the official mark scheme, or compare essay plans. If you study alone as a private candidate, an online study partner gives the same benefits.
Using AI tools responsibly
AI chat tools can be excellent tutors or terrible ones. The rule: use AI to explain and to check, never to do the practice for you. Learning happens when your own brain retrieves and works things out. If a tool does that work, you get none of the benefit, and you still meet the exam alone.
Good uses
Bad uses
“Explain the discriminant in a different way, with an example.”
“Solve these ten homework questions for me.”
“Here is my answer and the mark scheme. Which marks did I miss?”
Copying an AI answer into your notes without trying first
“Quiz me on Group 2 trends, one question at a time.”
Trusting AI calculations or facts without checking
“Translate this sentence from the question into simpler English.”
Submitting AI-written work in coursework or applications
A sample weekly schedule
Here is a realistic week for a student taking Mathematics, Physics and Chemistry, with about two hours of independent study on weekdays. Each block is two Pomodoros (about 50 minutes). Swap in your own subjects; the structure is what matters. For a plan built around your exam dates, use Build your personal study plan.
Day
Block 1
Block 2
Short review (15 min)
Monday
Maths: learn a new topic
Physics: questions on last week’s topic
Flashcards
Tuesday
Chemistry: learn a new topic
Maths: questions on Monday’s topic
Flashcards + blank-page recall of Monday’s maths
Wednesday
Physics: learn a new topic
Chemistry: questions on Tuesday’s topic
Flashcards
Thursday
Maths: mixed question set
Physics: questions on Wednesday’s topic
Flashcards + update error log
Friday
Chemistry: mixed question set
Maths: redo last week’s wrong questions
Flashcards
Saturday
One timed past-paper section (rotate the subject each week)
Mark it with the mark scheme
Add mistakes to error log
Sunday
Rest
Plan next week (10 minutes)
Optional light flashcards
Each subject returns several times (spacing), new content is tested on a later day (retrieval), Thursday and Friday mix topics (interleaving), and Saturday is a test. Sunday’s rest protects your motivation; see Motivation, sleep and stress.
Quick check
Next: Exam technique shows how to turn what you know into marks.
Exam technique
GuideExamsAll boards · all subjectsStudy time1 hour to read, then practise with every past paper
Knowing the content is half the job; the other half is turning it into marks. This chapter covers reading questions, timing, working, accuracy and units, and how to answer every type of question, from multiple choice to essays and practical papers.
Most lost marks start in the first ten seconds, when a student sees a familiar topic and starts writing the answer to a question they expected, not the one printed. Use the same routine for every question:
Read the whole question, including any introduction, data or diagram. Information is there because you need it.
Underline the command word (describe, explain, calculate, evaluate…) and the topic.
Circle any conditions: “two reasons”, “exact”, “to 3 significant figures”, “with reference to the data”, “using your answer to (a)”.
Look at the marks and plan that many separate points.
Answer, then reread the question to check you answered what was asked.
Marks tell you how much to write and how long to spend
As a rough guide, one mark needs one correct, separate point. A 3-mark “explain” question needs three linked steps of reasoning, not one long sentence. The number of answer lines is a second clue: if you have filled two lines for a 6-mark question, you have probably missed something.
Marks also set your time budget. Divide the time by the total marks:
Cambridge paper
Time
Marks
Time per mark
Mathematics 9709 Paper 1 or 3
1 h 50 min
75
about 1.5 min
Mathematics 9709 Paper 4, 5 or 6
1 h 15 min
50
1.5 min
Sciences Paper 1 (multiple choice)
1 h 15 min
40 questions
about 1 min 50 s per question
Sciences Paper 2 (AS structured)
1 h 15 min
60
1.25 min
Sciences Paper 4 (A Level structured)
2 h
100
1.2 min
Business 9609 Paper 2
1 h 30 min
60
1.5 min
Economics 9708 Paper 2
2 h
60
2 min
So an 8-mark maths question deserves about 12 minutes. If you have spent 20, move on and come back later.
Show your working
In mathematics and in science calculations, many marks are for method. In mark schemes, M marks are for a correct method, A marks are for accuracy and depend on the method mark, and B marks are independent. If your final answer is wrong but your method is visible, you can still earn many of the marks. A bare wrong answer earns nothing.
Examiners also use error carried forward (often called “follow through”): if you make a mistake in part (a) and then use your wrong answer correctly in part (b), you can usually still earn the part (b) marks. That only works if they can see what you did.
Use the same pattern every time: formula, substitution, answer with unit.
Significant figures, units and rounding
Do not round in the middle of a calculation. Keep the full value on your calculator (use the memory or ANS key) and round only the final answer.
Mathematics: give answers to 3 significant figures unless told otherwise, and angles in degrees to 1 decimal place. If the question says exact, leave answers as surds, fractions or in terms of or .
Sciences: give the final answer to the same number of significant figures as the least precise data, usually 2 or 3. Never fewer.
Units: write a unit on every final answer and check the prefix. A missing or wrong unit often costs a mark on its own.
Multiple choice
Cambridge science Paper 1 has 40 questions in 1 hour 15 minutes: about 1 minute 50 seconds each. Economics Papers 1 and 3 are also multiple choice. Edexcel IAL and the UK boards mix multiple-choice questions into some written papers instead.
Answer before you look. Cover the options, work out your answer, then find it. This protects you from attractive wrong options.
Eliminate. Cross out options you know are wrong. With two options left, even a guess has a 50% chance.
Watch for NOT, FALSE and INCORRECT, usually in bold. Underline them.
Check powers of ten and units. Wrong options are often your answer with a factor of 10, 1000 or 2 missing.
Never leave a blank. There is no penalty for a wrong answer, so guess any question you cannot do.
Transfer carefully. If the paper uses a separate answer sheet, check every answer is on the correct line.
Structured questions
Structured questions are split into parts: (a), (b)(i), (b)(ii). They usually build on each other, so an answer to (a) is often a hint for (b). Keep answers precise: use the technical term, give one idea per mark, and do not copy out the question. “With reference to the data” or “use the information” means quote figures from the question, with units, in your answer.
Extended writing
For long answers in any subject, build each paragraph with Point, Evidence, Explain: make one clear point, support it with evidence or data, and explain why it matters to the question.
In Business and Economics, the mark scheme rewards four skills in order: knowledge (correct terms and theory), application (using the business or economy in the case), analysis (chains of reasoning: “this means that… so…”) and evaluation (a supported judgement). The top levels require evaluation, so a long, accurate answer with no judgement cannot reach full marks. See Writing top-band business answers.
Data, graphs and diagrams
When you describe data, give the overall trend, quote key values with units, describe any change in the rate of change, and point out anomalies. “Sales rose from 1200 to 1800 units, an increase of 50%” earns more than “sales went up”.
When you draw a graph:
label both axes with quantity and unit, for example “time / s”;
choose a scale so that the points cover at least half the grid in each direction;
plot points with small, precise crosses;
draw a single best-fit line or smooth curve, never dot-to-dot;
find a gradient using a large triangle, and show the values you read.
In Business and Economics diagrams, label the axes (price, quantity), every curve (D₁, D₂, S), the equilibrium points, and show shifts with arrows. Then refer to the diagram in your writing.
Practical and planning papers (Cambridge Papers 3 and 5)
Cambridge Physics, Chemistry and Biology each have two practical-skills papers.
Paper 3: Advanced Practical Skills (AS)
Paper 5: Planning, Analysis and Evaluation (A Level)
Format
2 h, 40 marks, hands-on in a laboratory
1 h 15 min, 30 marks, written
What you do
Follow instructions, take measurements, record, graph, calculate
Plan an experiment, analyse given data, evaluate conclusions
Key marks
Tables with “quantity / unit” headings; readings to the precision of the instrument; repeats; good graphs; specific improvements
Clear variables (independent, dependent, controlled); a workable method; safety; how to analyse (what to plot); uncertainties and error bars
In Paper 3, improvements must be specific: “use a video camera with a timer to measure the oscillation time” earns marks, “be more careful” never does. Edexcel IAL tests practical skills in written papers instead (Units 3 and 6). The subject guides go further: Physics practical skills, Chemistry practical skills and Biology practical skills.
Checking and getting unstuck
Leave about 5 to 10 minutes at the end. Check that every question has an answer, every final answer has a unit and the right significant figures, and that each answer matches its command word. Ask “is this sensible?”: a car is not travelling at .
When you are stuck:
Mark the question, move on, and come back with fresh eyes.
Write what you know: the relevant formula, a definition, a labelled diagram. These can earn marks on their own.
Use every piece of given information; if you have not used something, that is probably the key.
Write inside the answer space. If you need more room, use the extra page provided and label the question number clearly.
Common ways marks are lost
Mistake
Fix
Describing when asked to explain
Underline the command word before writing
Missing or wrong units
Write the unit with every final answer
Rounding too early
Keep full values; round only at the end
Bare answers with no working
Formula, substitution, answer
Vague words such as “it affects”
State the direction and size of the change
Ignoring the context in a case study
Use the business’s name and its data
One-sided evaluation
Weigh both sides, then make a justified judgement
Running out of time
Use your time per mark and checkpoints
Weak and strong answers compared
A science “explain” question.Explain why the rate of a reaction increases when the temperature is increased. [3 marks]
Weak answer (about 1 mark)
The particles move faster, so they collide more and the reaction goes faster.
This repeats the question (“goes faster”) and never mentions activation energy or successful collisions.
Strong answer (3 marks)
At a higher temperature the particles have more kinetic energy. [B1] So a greater proportion of collisions have energy equal to or greater than the activation energy. [B1] Therefore the frequency of successful collisions increases. [B1]
A business “evaluate” question.Leyla’s Bakery made a net profit of $18,000 last year. Leyla needs $40,000 to open a second shop. Evaluate whether she should finance it with a bank loan. [12 marks]
Weak paragraph
A bank loan is good because you get money quickly and do not lose control. But you have to pay interest. Overall she should take the loan.
Correct knowledge, but nothing about Leyla’s bakery, no chain of reasoning, and a judgement with no reason.
Strong paragraph
A loan lets Leyla keep full ownership and control (knowledge). Her $18,000 profit suggests she could afford repayments from current earnings (application). However, a new shop may take months to build sales, while repayments are fixed, so cash flow could turn negative and put both shops at risk (analysis). A loan is the better choice only if her forecast for the new shop is realistic and she keeps a cash reserve; if sales are uncertain, a partner sharing the risk may be safer (evaluation).
The strong paragraph is not much longer. It earns more because every sentence does a job: it uses the case, builds a chain of reasoning and ends with a judgement that depends on clear conditions.
ReferenceExamsCambridge command words · Edexcel, AQA and OCR notesStudy time30 minutes to read; keep it open while you practise
Every exam question starts with an instruction word such as describe, explain or evaluate, and each one asks for a different kind of answer. This reference decodes the Cambridge command words and the special phrases used in maths papers.
Use this page alongside Exam technique. Cambridge prints the official list of command words in each syllabus; check the one for your subject, because not every word is used in every subject.
Three families of command words
It helps to sort command words by how much thinking they demand.
Arguments weighed against each other and a supported conclusion
The Cambridge command words
Command word
What it means
What examiners expect
Example stem
Analyse
Break a topic into parts and show how they connect
Chains of reasoning (cause, effect, consequence) using the data or case
Analyse how a fall in interest rates could affect a car manufacturer.
Assess
Weigh something up and reach a reasoned judgement
Points on both sides, then a judgement about importance or extent
Assess the importance of cash flow forecasting for a new business.
Calculate
Work out a numerical answer
Working shown; final answer with unit and sensible significant figures
Calculate the resistance of the wire.
Comment
Give an informed opinion on the information
A judgement supported by reasons or data, not just a description
Comment on the reliability of these results.
Compare
Point out similarities and differences
Both things in every point, with words such as “whereas” and “both”
Compare the structures of DNA and RNA.
Consider
Think about the given information and respond to it
A response that uses the information, often weighing factors
Consider whether the firm should accept the new order.
Contrast
Point out differences only
Paired differences: “X is…, whereas Y is…”
Contrast the properties of simple molecular and giant covalent substances.
Deduce
Reach a conclusion from the information given
The conclusion plus the step of logic from the data
Use the data to deduce the order of reaction with respect to A.
Define
Give the exact meaning of a term
Precise syllabus wording; an example alone is not a definition
Define specific heat capacity.
Demonstrate
Show how something works, or give an example
A clear illustration, worked case or example
Demonstrate how a price cut could reduce total revenue.
Describe
Say what something is like or what happens
Main features, steps or trends, with figures from data; no reasons needed
Describe the trend shown in Fig. 2.1.
Determine
Find an answer using the information available
A value obtained from data, a graph or a calculation, with method
Use the graph to determine the gradient.
Develop
Take an idea further or build on given information
Extra depth: the next step, consequence or detail
Using the data, develop a plan to reduce staff turnover.
Discuss
Write about an issue in depth, in a structured way
Arguments for and against, analysed, usually with a conclusion
Discuss whether economic growth always raises living standards.
Evaluate
Judge the quality, importance or value of something
Strengths and weaknesses weighed, “it depends on…”, a justified final judgement
Evaluate the usefulness of ratio analysis to an investor.
Examine
Look closely and in detail at an issue
Detailed investigation of causes, assumptions and effects
Examine the causes of the fall in exports.
Explain
Give reasons (why) and mechanisms (how)
Cause-and-effect links with “because”, “so”, “therefore”
Explain why the current in the circuit decreases.
Give
Produce an answer from the source or from memory
A short answer; no explanation
Give two examples of fixed costs.
Identify
Name, pick out or recognise
A word or phrase, often from a diagram or data
Identify the structure labelled X.
Justify
Support a choice or conclusion with evidence
Reasons and evidence for the answer you gave
Justify your choice of indicator for this titration.
Outline
Set out the main points briefly
Key points with little detail
Outline the stages of the product life cycle.
Predict
Say what is likely to happen, from information or a pattern
A specific outcome, sometimes with a brief reason
Predict the effect on the position of equilibrium of increasing the pressure.
Show (that)
Give structured evidence that leads to a given result
Every step visible, ending exactly at the given result
Show that the speed of the ball is about .
Sketch
Draw a simple diagram or graph of the key features
Correct shape, labelled axes and key points; not to scale
Sketch a graph to show how enzyme activity varies with pH.
State
Express clearly and briefly
A fact, value or name; no explanation
State the unit of electric charge.
Suggest
Apply knowledge to a new situation with several possible answers
A sensible, reasoned proposal; you are not expected to have learned it
Suggest why the two groups gave different results.
Summarise
Select and present the main points only
A short overview without detail or examples
Summarise the main findings shown in the table.
Phrases in mathematics papers
Maths papers use a small set of phrases with exact meanings. Misreading them costs marks even when the mathematics is right.
Phrase
What it means
Find, calculate, determine
Work it out and show your method
Write down, state
The answer can be seen with little or no working; usually 1 mark
Show that
The answer is given: every step must be shown, ending exactly at the printed result
Prove
A complete general argument, every step justified, ending with a conclusion; examples are not proof
Hence
You must use the previous result; a different method may score nothing
Hence or otherwise
Using the previous result is the intended quick route, but any correct method earns full marks
Exact
No calculator decimals: leave surds, fractions, , or in the answer
Sketch
Correct shape with key features labelled (intercepts, turning points, asymptotes); not to scale
Plot, draw accurately
Calculate points and mark them precisely on a grid
Verify
Substitute the given values to confirm a result, then make a conclusion
In the form…
Match the form exactly, for example
In terms of
Your answer should contain
Worked exampleHence versus hence or otherwise3 marks
(a) Show that is a root of . (b) Hence solve .
(a) , so is a root. B1
(b) “Hence” means use part (a): is a factor. Dividing gives . M1A1
Writing the three roots straight from a calculator’s equation solver does not use part (a), so it would not earn the method mark. If the question had said “hence or otherwise”, a different valid method with full working would also be accepted.
Describe, explain and evaluate on one topic
The clearest way to see the difference is to answer three questions on the same data.
Worked exampleOne set of data, three command words
A student measured the volume of oxygen released per minute by the enzyme catalase at different temperatures.
Temperature / °C
10
20
30
40
50
60
Rate / cm³ min⁻¹
3.1
5.8
9.9
12.4
6.2
0.8
Describe the results. The rate increases from at 10 °C to a maximum of at 40 °C. Above 40 °C it falls steeply, to at 60 °C. (Trend, key values, units; no reasons.)
Explain the results. Up to 40 °C, enzyme and substrate molecules gain kinetic energy, so they collide more often and more enzyme–substrate complexes form per minute. Above the optimum, vibrations break hydrogen and ionic bonds in the enzyme, so its tertiary structure and the shape of the active site change. The substrate is no longer complementary to it, so fewer complexes form: the enzyme is denatured. (Reasons and mechanisms, linked with “so”.)
Evaluate the conclusion that the optimum temperature is 40 °C. The data support an optimum near 40 °C, because that reading is the highest. However, readings were taken only every 10 °C, so the true optimum could lie anywhere between 30 °C and 50 °C, and with one reading at each temperature, an anomaly could not be spotted. Repeating each reading three times, at intervals of 2 °C between 30 °C and 50 °C, would make the conclusion more reliable. Overall, the conclusion is reasonable but only approximate. (Strengths, limitations, improvement, judgement.)
GuideExamsAll boards · all subjectsStudy time30 minutes to read
Two years of A Level study is a marathon, not a sprint. This chapter shows how to build habits that keep you going, beat procrastination, sleep and move for better memory, handle exam nerves and burnout, and where to get help.
Many students wait to feel motivated before they start. But motivation is unreliable: it rises and falls with mood, sleep and the weather. The good news is that it usually follows action. Start a small task, make some progress, and the motivation to continue arrives.
So do not rely on motivation. Rely on habits and process goals.
Process goal
A goal about an action you control, such as “do ten mixed maths questions every weekday”, rather than about a result you cannot fully control, such as “get an A*” (an outcome goal).
Outcome goal (the destination)
Process goals (what you do each day)
A* in Mathematics
Ten mixed questions every weekday; one timed paper every Saturday
A in Chemistry
15 minutes of flashcards daily; one past-paper question per topic learned
A place to study medicine
Read one article on health science each week; prepare for the admissions test 3 hours a week
Outcome goals give direction. Process goals give you something to do today, and you can tick them off, which feels good and builds momentum.
Building habits
A habit is something you do with little thought because it is attached to a regular cue. To build a study habit:
Link it to a cue. Use a specific plan: “After dinner, at my desk, I will do 20 minutes of flashcards.” Plans in the form “when X, I will do Y” are much more likely to happen than “I will study more”.
Make it small. Start with a version so easy you cannot say no, even five minutes. You can increase it once the habit is fixed.
Make it visible. Mark each day you do it on a calendar. A growing chain of marks is motivating.
Never miss twice. Missing one day is normal. Missing two starts a new habit of not doing it.
Beating procrastination
Procrastination is not laziness. It is usually a way of avoiding a bad feeling: a task feels too big, too vague, too boring or too frightening. Fix the feeling and the task becomes easier to start.
Why you are avoiding it
What to do
It feels too big (“revise organic chemistry”)
Break it down; do only the first 25-minute piece
It is vague
Write the exact first action: “open the June paper, question 1”
You fear doing badly
Treat the first try as practice; mistakes show you what to fix
Something more fun is nearby
Phone in another room; block distracting sites
You are tired
Drink water and walk for 10 minutes, then start; if you are exhausted, rest properly and plan the morning
Sleep: when memories are saved
Sleep is not wasted study time. While you sleep, your brain consolidates what you learned during the day: it strengthens new memories and links them to old ones. Students who cut sleep to study more often remember less of what they studied.
Teenagers need roughly 8 to 10 hours of sleep a night. Teenage body clocks also run later than adults’, so falling asleep early can be hard. The most useful habit is a regular wake-up time, kept within about an hour on weekends too.
Stop using screens 30 to 60 minutes before bed, and charge your phone outside the bedroom.
Avoid caffeine (coffee, strong tea, energy drinks) from the early afternoon: it stays in your body for many hours.
Keep your room cool, dark and quiet.
If you nap, keep it to about 20 minutes and not late in the day.
Exercise and food
The World Health Organization recommends that young people aged 5 to 17 do an average of 60 minutes a day of moderate to vigorous physical activity. Exercise improves mood, sleep and concentration. You do not need a gym: a brisk walk, a game of football or a bike ride all count. A 10 to 20 minute walk is also one of the best breaks between study blocks.
There are no magic “brain foods”. What helps is ordinary good eating: regular meals including breakfast, plenty of water, fruit and vegetables, and not living on sugar and energy drinks, which give a short boost followed by a dip. On exam days, eat a familiar breakfast and take water into the exam if your centre allows it.
Exam nerves: making them work for you
Some nervousness before an exam is normal and useful: it makes you alert. It becomes a problem when it blocks your thinking. These techniques are simple and backed by evidence.
Slow breathing. Breathe in for a count of 4 and out for a count of 6 to 8. A longer out-breath calms your heart rate. Repeat five times.
Rename the feeling. A racing heart feels the same whether you are anxious or excited. Telling yourself “this is energy that will help me focus” can improve performance.
Write the worry down. In a well-known 2011 study, anxious students who spent ten minutes writing about their worries just before an exam scored better than those who did not. Write the worry, then put it away.
Practise under real conditions. Timed past papers at a desk make the real exam feel familiar, and familiar situations are less frightening.
If your mind goes blank in the exam, put your pen down.
Take three slow breaths, with a long out-breath.
Move to a question you know you can do, and do it.
Come back to the hard question and write anything relevant: a formula, a definition, a diagram.
Perfectionism
High standards are good. Perfectionism is different: it means feeling that anything less than perfect is failure. Warning signs include spending hours making notes beautiful, not starting until conditions are perfect, avoiding past papers in case you score badly, and feeling worthless after one poor mark.
Remember that top grades never require perfection. Grade thresholds are set below full marks, so you can drop marks on every paper and still reach an A*. Early past-paper scores are supposed to be low: they show you what to fix. Aim for progress, keep notes “good enough”, and talk to yourself the way you would talk to a friend who made the same mistake.
Burnout: know the signs
Burnout is exhaustion that comes from too much pressure for too long. Watch for:
tiredness that a night’s sleep does not fix;
dreading study, or feeling “what is the point?”;
working longer hours but achieving less;
irritability, headaches, stomach aches or getting ill often.
If you notice these, the answer is not to push harder. Reduce your workload for a week, protect your sleep, take a full day off, and talk to someone. Then adjust your plan to be sustainable.
Rest is part of the plan
Schedule rest the way you schedule study. Take at least one full day, or two half-days, off each week. Make breaks real: a walk, a meal with family, sport or a hobby, not an hour of scrolling. Keep seeing friends. During school holidays, lighten the load for a few days before building up again.
When to get help
Everyone has bad days. But talk to someone if worry, low mood or poor sleep lasts more than about two weeks, if you have panic attacks, if you stop eating properly, or if stress stops you doing normal things.
A trusted adult: a parent, relative or teacher you feel comfortable with.
Your school counsellor or guidance teacher, if you are at a school. Private candidates can ask their exam centre or tutor who to contact.
A doctor: your family doctor can help with sleep problems, anxiety and low mood, and can refer you to specialist support.
If your exam performance is affected by illness or a serious event, your exam centre can apply to the board for special consideration. If you have a diagnosed condition, access arrangements such as extra time must be applied for in advance through your centre. See Phase 6: Exam day, results and resits.
ReferenceExamsAll boards · Mathematics, sciences, Business and EconomicsStudy time20 minutes to read; come back when you need material
Where to find trustworthy study material: the official documents every candidate needs, then well-known free and paid websites, videos and books for each subject, and how to judge whether a resource is any good.
These documents come from the exam board itself. Nothing else is as reliable, and most of them are free.
Resource
What it is
How to use it
Syllabus (Cambridge) or specification (UK boards)
The official list of everything that can be examined, plus the paper structure
Print the content list and use it as a checklist; tick topics as you master them
Specimen papers
Sample papers written for a new syllabus
Your first look at the format; good early practice
Past papers
Real papers from earlier exam series
The core of your practice from Phase 4 onwards
Mark schemes
Exactly what earned marks in each past paper
Mark your own work strictly; learn the wording examiners accept
Examiner reports
Comments by the senior examiners after each series
Lists the common mistakes and what the best answers did
Grade thresholds
The raw marks needed for each grade in each series
Turn your past-paper scores into grades and set targets
Formula lists and data booklets
The formulas and data you are given in the exam, such as MF19 for Cambridge 9709
Practise with the same booklet so you know what is given and what you must learn
Where to find them. Cambridge publishes syllabuses, specimen papers and some past papers on each syllabus page of its website; the full archive is on its School Support Hub for registered schools. Pearson (for Edexcel IAL), AQA and OCR publish past papers, mark schemes and examiner reports on their websites, although the newest series is sometimes released to teachers only for a period. If you study privately, ask your exam centre what it can provide.
Mathematics
Resource
Best for
Cost
Physics & Maths Tutor
Past papers sorted by board, topic questions and revision notes
Free
ExamSolutions
Video lessons by topic and worked solutions to past-paper questions
Mostly free
TLMaths
Short videos covering the whole A Level Maths and Further Maths course, in order
Free
Dr Frost Maths
Online exam-style questions with instant marking, plus teaching slides
Free
MadAsMaths
Large practice booklets, including hard questions for A* and beyond
Free
Underground Mathematics
Rich problems from the University of Cambridge that build deep understanding
Free
Khan Academy
Filling gaps in GCSE-level algebra, trigonometry and early calculus
Free
Most of these follow UK specifications, but the Pure Mathematics, Statistics and Mechanics content overlaps heavily with Cambridge 9709. Check the topic against your syllabus before you spend time on it.
Every Maths chapter in this guide ends with a short “Learn more online” list picked for that topic. Maths: learn more online gathers all of them on one page, grouped by topic and by kind.
Physics and Chemistry
Resource
Best for
Cost
Isaac Science (formerly Isaac Physics)
Graded problem-solving practice in physics, plus chemistry and maths skills
Free
Chemguide
Clear, detailed explanations of A Level chemistry, especially mechanisms and the reasons behind trends
Free
Physics & Maths Tutor
Notes, topic questions and past papers for both sciences
Free
Save My Exams
Revision notes and topic questions organised by board, including Cambridge
Free and paid
Seneca
Short, interactive revision courses that quiz you as you go
Free and paid
Khan Academy
Foundations: mechanics, electricity, atoms and basic chemistry
Free
For the practical papers, use your subject’s practical chapter here and the examiner reports, which describe exactly how marks were lost in tables, graphs and evaluations.
Clear diagrams and concise summaries (written for IB Biology, but most topics overlap)
Free
Save My Exams
Notes and questions organised by board and topic
Free and paid
Physics & Maths Tutor
Notes, flashcards and topic questions for Biology too
Free
Seneca
Interactive revision for many A Level specifications
Free and paid
Cognito
Short videos and quizzes, mainly at GCSE level; good for fixing foundations
Mostly free
Every Biology topic chapter in this guide ends with a short “Learn more online” list picked for that topic. Biology: learn more online gathers all of them on one page, grouped by topic and by kind.
Business and Economics
Resource
Best for
Cost
tutor2u
Topic notes, videos and up-to-date examples for Business and Economics
Free and paid
Save My Exams
Revision notes organised by board and topic
Free and paid
Khan Academy
Microeconomics and macroeconomics foundations
Free
Quality news sources
Real examples for application and evaluation: business pages of major news organisations
Free and paid
In these subjects, examples from real businesses and economies lift answers into the higher levels. Keep a notebook of examples, including local ones: a Turkish exporter affected by exchange rates is just as good an example as a British one.
One good textbook per subject is enough. On each syllabus page, Cambridge lists endorsed textbooks, which have been reviewed against that syllabus. Publishers of endorsed books include Cambridge University Press & Assessment, Hodder Education, Collins and Oxford University Press. For Edexcel IAL, Pearson publishes its own student books for each unit, and the UK boards list approved books for their specifications.
Before you buy, check that the book names your syllabus code and exam years. A cheap second-hand copy of an older edition may miss content that was added later, so compare its contents with the current syllabus.
How to judge a resource
Before you trust a website, video or book, ask:
Is it for my board, my syllabus code and the current years?
Who made it? An exam board, an experienced teacher or a university is more reliable than an anonymous upload.
Does it explain why, not just what? Good resources show full working and reasoning.
Does it match the mark scheme? Compare one of its answers with an official mark scheme.
Does it make me active? Questions and quizzes beat passive watching.
Avoid leaked and pirated material
Sometimes social media accounts claim to sell “leaked” papers before an exam. These are almost always scams. If a real paper were involved, using or sharing it would be malpractice, and boards can disqualify candidates from a subject or from all their exams. Never buy, download or share them. Equally, do not post or discuss questions online after you sit a paper: candidates in other time zones may not have taken it yet.
Pirated copies of textbooks and paid courses break copyright law, often carry malware, and are frequently old editions. Use the many free and legal resources above, your school or public library, and the official board websites instead.
GuideExamsCambridge International · Edexcel IAL · UK boardsStudy time40 minutes to read, plus a few hours of planning
How to take A Levels without a school: choosing a board that works for private candidates (especially in the sciences), finding an exam centre, entry deadlines, predicted grades and references, a self-study plan, and exam-day logistics.
What being a private candidate means
Private candidate
A candidate who takes exams at an approved exam centre without being a student of that centre, and who is responsible for their own preparation and exam entries.
Exam centre
A school, college or organisation approved by an exam board to enter candidates for its exams and to run those exams under the board’s rules.
You prepare on your own, or with tutors or an online school. You then register with a centre that accepts private candidates. The centre enters you for the exams, supervises them, and passes on your results. You pay the centre’s fees.
Step 1: choose your board
For Mathematics, Business and Economics, every major board assesses you by written exams only, so choose by syllabus, resources and exam dates. Subjects with practical work or coursework need more care, because a centre must supervise that part. The sciences are the main example, because of how practical skills are assessed.
Cambridge International A Level
Pearson Edexcel International A Level (IAL)
UK A Levels (AQA, OCR, Edexcel)
Exam series
May/June and October/November
January, May/June and October/November
Usually May/June only
Science practical
Paper 3 is a hands-on laboratory exam; Paper 5 is written
Units 3 and 6 are written papers testing practical skills
Written papers, plus a separate practical endorsement assessed by teachers over the course
What a private candidate needs
A centre with a laboratory that will run Paper 3 for private candidates
Any centre that runs IAL exams
A centre willing to supervise the required practical activities
Structure
AS can be taken first and carried forward to the full A Level
Modular: units can be sat in different series and resat one at a time
Linear: all exams at the end
Because the Cambridge science Paper 3 is a practical exam, you must find a centre that has a suitable laboratory and agrees to run it for private candidates, and many centres do not. Edexcel IAL tests practical skills in written papers (Units 3 and 6), so no laboratory session at the centre is needed. This is one reason many private candidates choose Edexcel IAL for the sciences. It is not a shortcut: the written practical papers test planning, measurement, data analysis and the core practicals in detail, so you still need to understand experiments well, ideally by doing some.
For UK A Levels in the sciences, the practical endorsement is reported separately from the grade. Private candidates often find it hard to arrange, and some university science and medicine courses expect a pass.
Before you commit, check that the universities and courses you are interested in accept your combination, especially for medicine, where some universities have rules about resits and modular exams.
Step 2: find a centre
In Turkey, the British Council runs school exams for private candidates in Istanbul and Ankara. Some schools registered with Cambridge or Pearson also accept private candidates.
Anywhere, use the centre search tools on the Cambridge International and Pearson websites, contact your local British Council office, and ask international schools near you directly.
Ask every centre the same questions, and keep the answers in writing:
Do you accept private candidates for my board, subjects and series?
(Cambridge sciences) Can you run the practical Paper 3 for private candidates?
What is your entry deadline for the series I want, and is there a late-entry option?
What are your fees, per subject or component, and are there administration charges?
What identification do you need, and where exactly will the exams take place?
Can you arrange access arrangements, such as extra time, if I am eligible?
How and when will I receive my results and certificates?
Step 3: entry deadlines and fees
Centres set their own entry deadlines, and they are usually much earlier than the board’s own deadline, often months before the exams. Late entries, where accepted at all, cost considerably more. Put the deadline in your calendar the day you learn it, with a reminder a month before.
Fees are set by each centre. They usually combine the board’s entry fee for each subject or component with the centre’s own charge, so they vary a lot between centres and countries. Ask for a full written breakdown before you enter.
When you enter, check the exact entry options: for example AS only or full A Level, and the right components. With Cambridge, an AS result can be carried forward to the full A Level within 13 months, so you can sit AS in one year and complete the A Level the next.
Predicted grades and references without a school
When you apply through UCAS, universities expect a reference and predicted grades. Without a school, you still need someone who knows your academic work.
Referee: a tutor, a former teacher, or the head of an online school who has taught you. Family members and friends must not write it.
Predicted grades: these must come from someone who has seen and marked your work. Sit timed past papers regularly and have a tutor mark them, and keep a dated record of scores. That record is the evidence behind a credible prediction.
Apply after your results: many private candidates apply once their grades are known, often taking a gap year. Your offers are then based on real results, which removes the predicted-grade problem completely.
Cambridge designs each A Level around roughly 360 guided learning hours per subject (about 180 for AS). On your own, plan for at least that much, plus revision. Over two years, that means a steady weekly routine, not bursts.
Stage
Roughly when
What to do
Set up
First month
Choose subjects and boards, download syllabuses, buy textbooks, contact centres
AS content
Months 2 to 9
Learn the AS topics in order, with questions after every chapter
AS consolidation
Months 10 to 12
Timed AS past papers; sit AS exams now if you are taking them separately
A Level content
Months 13 to 19
Learn the A Level topics and keep revisiting AS topics with mixed questions
Tutors are most valuable for the things you cannot do alone: marking long answers against the mark scheme, explaining a topic you are stuck on, setting mock exams, and writing a reference. Choose one with experience of your specific board, ask for a trial lesson, and avoid paying large sums in advance.
Online schools can provide a full course, regular feedback and a reference. Check what they actually include: most do not enter you for exams, so you still need a centre.
Study partners keep you accountable. An online partner taking the same subject can quiz you, compare answers and share the motivation.
Exam-day logistics
Identification: private candidates normally have to show valid photo identification, such as a passport or national identity card, at every exam. The name must match your entry exactly.
Statement of entry: when the centre sends your list of entries and timetable, check every subject, component, date and the spelling of your name. Report any error immediately.
Venue and travel: the exam may be held at a different address from the centre’s office. Visit or plan the route in advance and aim to arrive at least 30 minutes early.
Equipment: black pens, pencil, ruler, eraser and an approved calculator in a clear pencil case. Check the board’s calculator rules; calculators with computer algebra are not allowed.
Results and certificates: you receive results through your centre. Certificates arrive later; collect them and keep them safe, because universities and employers may ask for them.
Your checklist
Choose your subjects and check that they fit the university courses you are considering.
Choose a board for each subject, thinking carefully about the practical papers in the sciences.
Download each syllabus and specimen paper, and get one endorsed textbook per subject.
Find a centre that accepts private candidates for your subjects (and runs Paper 3 if you choose Cambridge sciences).
Write down the centre’s entry deadline and fees, and set reminders.
Build a weekly study plan, and find a tutor or teacher who can mark your work and act as referee.
Enter before the deadline and check your statement of entry carefully.
Sit timed mock exams and keep the marked papers as evidence for predicted grades.
Prepare identification, travel and equipment for each exam day.
Collect your results and certificates, and plan any resits early.
GuideExamsUCAS · 2027 entry · all boardsStudy time45 minutes to read; start planning a year before you apply
How applying to UK universities works through UCAS: choices, the three-question personal statement, references, predicted grades and offers, the 2027-entry deadlines, the admissions tests (ESAT, TMUA, TARA, UCAT, LNAT and STEP), interviews, supercurricular activities, and applying outside the UK.
UCAS is the central admissions service for undergraduate degrees in the UK. You make one online application and send it to up to five choices (a course at a university). There are two important limits:
For medicine, dentistry and veterinary medicine or science, you can use at most four of your five choices on these courses.
You can usually apply to Oxford or Cambridge, but not both, in the same year.
Part of the application
What it is
Choices
Up to five courses; every university sees the same application
Qualifications
Results you already have (for example IGCSE or AS) and those you are taking
Personal statement
Your answers to three questions about why and how you have prepared for the subject
Reference
Written by a teacher or tutor who knows your academic work
Predicted grades
Your referee’s professional estimate of your final grades
If English is not your first language, most universities also ask for an English test such as IELTS Academic, unless they accept another qualification you hold. Check each university’s requirements early.
Deadlines for 2027 entry
Date
Deadline
15 October 2026, 6 pm UK time
Oxford, Cambridge, and most courses in medicine, dentistry and veterinary medicine or science
13 January 2027, 6 pm UK time
Equal-consideration deadline for most other courses
After 13 January you can still apply until the end of June, but universities do not have to consider late applications equally, and popular courses may be full. After that, places are filled through Clearing. Schools often set an internal deadline weeks earlier so that teachers have time to write references, so ask your referee early.
The personal statement
From 2026 entry onwards, the personal statement is no longer one free essay. You answer three questions:
Why do you want to study this course or subject?
How have your qualifications and studies helped you to prepare for this course or subject?
What else have you done to prepare outside of education, and why are these experiences useful?
The total limit is 4,000 characters including spaces, with at least 350 characters for each answer. You can share the characters between the questions however suits you. All your choices see the same statement, so write about the subject, not about one university.
Question
Strong answers include
1. Why this subject?
A specific idea, problem or experience that interests you, and what you did to follow it up
2. Qualifications and studies
Topics from your A Levels that you enjoyed or found challenging, and skills they gave you, linked to the degree
3. Preparation outside education
Reading, competitions, online courses, projects, work or volunteering, and what each taught you
References and predicted grades
Your reference is written by a teacher or tutor who knows your academic work. It describes your abilities and potential and includes your predicted grades: your referee’s professional judgement of the grades you are likely to achieve. Universities make offers based on these predictions, so strong, consistent work over the year before you apply matters. Private candidates should read the advice on referees in Studying as a private candidate.
Offers and replying
Each university replies with one of these decisions:
Conditional offer: a place if you achieve certain results, such as “AAA including A in Mathematics”.
Unconditional offer: a place with no conditions, usually because you already have your results.
Unsuccessful: no offer.
Some universities state offers in UCAS tariff points instead of grades. Use the calculator to see how your grades convert:
When all your decisions have arrived, choose a firm choice (your first choice) and an insurance choice (a back-up with lower conditions), and decline the rest. If you meet your firm offer’s conditions, you are committed to it, so only choose a firm offer you really want. Your reply deadline depends on when your last decision arrives, and is shown in your UCAS account.
If you have no offers, UCAS Extra lets you add further choices one at a time from late February, and Clearing fills remaining places in the summer, especially around results day.
Admissions tests for 2027 entry
Many competitive courses require a test. Several tests are run by UAT-UK and taken on computer at Pearson VUE test centres, which exist in many countries.
Test
Used for
Format
When (2027 entry)
ESAT
Engineering and science courses at Cambridge, Oxford (replacing the PAT), Imperial and UCL
Mathematics 1 plus two modules chosen from Mathematics 2, Physics, Chemistry and Biology; each module 40 minutes, 27 multiple-choice questions
12–16 October 2026 or 4–8 January 2027
TMUA
Mathematics, computer science and economics courses at Cambridge, Oxford (replacing the MAT), Imperial, LSE, Warwick, Durham and UCL
Two 75-minute papers, each with 20 multiple-choice questions; no calculator
12–16 October 2026 or 4–8 January 2027
TARA
Several Oxford courses (replacing the TSA) and some UCL courses
Three 40-minute modules: critical thinking, problem solving and a writing task
12–16 October 2026 or 4–8 January 2027
UCAT
Most UK medical and dental schools, including Oxford and Cambridge (the BMAT no longer runs)
Four timed sections (verbal reasoning, decision making, quantitative reasoning, situational judgement), about 2 hours
Summer before you apply: 13 July to 24 September 2026 (now closed)
LNAT
Law at Oxford, Cambridge, UCL, KCL, LSE, Durham, Bristol, Glasgow, SOAS and others
42 multiple-choice questions on reading passages (95 minutes), then one essay (40 minutes)
From 1 September 2026; by 15 October 2026 for Oxford and Cambridge; by 31 December 2026 for KCL, LSE and UCL; by 25 January 2027 for most others (13 January for Bristol and Durham)
STEP
Mathematics at Cambridge (part of almost all offers); some other universities, such as Warwick, may include it in offers
STEP 2 and STEP 3, long problem-solving papers, run by OCR
June 2027, after you receive an offer
Prepare with each test’s official practice papers, timed and marked like A Level past papers.
Interviews
Oxford interviews the applicants it shortlists, and Cambridge interviews most of its applicants, usually in December; many interviews take place online. They are academic conversations: you will be given unfamiliar problems or texts and asked to think aloud. Interviewers want to see how you reason, not how much you have memorised. Medical schools use panel interviews or multiple mini interviews (MMIs), short stations testing communication and judgement, usually between November and March.
To prepare, practise talking through hard problems out loud (Underground Mathematics and Isaac Science are excellent for this), reread your personal statement and be ready to discuss anything in it, and ask a teacher or tutor for a mock interview. For an online interview, test your camera, microphone and connection beforehand and have paper and a pen ready.
Supercurricular activities and the EPQ
Supercurricular activities take your subject beyond the syllabus, unlike extracurricular hobbies. Universities, especially the most selective, value them because they show genuine interest. Examples:
reading books, articles and popular science about your subject;
free online courses and recorded university lectures;
competitions such as the UKMT mathematics challenges, the British Physics Olympiad, or national science olympiads (in Turkey, run by TÜBİTAK);
essay competitions, summer schools and small research projects;
for medicine, work experience or volunteering in caring roles.
What matters is reflection: what you learned and how it changed your thinking, not a long list.
The Extended Project Qualification (EPQ), offered by UK boards, is an independent project, usually a dissertation of about 5,000 words or an artefact with a report. It is worth up to 28 UCAS points (for an A*), and some universities make lower offers to applicants with a good EPQ. It needs a supervising centre, so ask your school or exam centre whether it offers the EPQ or a similar project qualification.
Applying outside the UK
A Levels are recognised by universities around the world, but each country, and often each university, has its own rules. Always check the university’s international admissions page.
United States: you apply to each university directly, often through the Common App. Many universities require or recommend SAT or ACT scores, and policies have changed in recent years. Strong A Level results may earn credit for some first-year courses.
Europe: many universities accept A Levels, often with requirements on the number of A Levels and specific subjects. English-taught degrees are common in countries such as the Netherlands and Germany.
Turkey: your route depends on your citizenship and where you completed secondary school. Many Turkish universities accept A Level results in their international student admissions, often with minimum grades, while most Turkish citizens who finished school in Turkey enter through the national exam (YKS, run by ÖSYM). You may also need a diploma equivalence (denklik) from the Ministry of National Education. Check with the university and official sources before you rely on A Levels alone.
Your 2026–27 timeline
When
What happens (2027 entry)
Summer 2026 (passed)
UCAT testing; LNAT booking for Oxford and Cambridge closed 15 September; UAT-UK October booking closed in late September
October 2026
ESAT, TMUA and TARA: 12–16 October. UCAS and LNAT deadline for Oxford, Cambridge and medicine: 15 October. January UAT-UK booking opens late October
November 2026
Interview invitations; UCAT results reach universities; prepare for interviews
December 2026
Oxford and Cambridge interviews; LNAT deadline for KCL, LSE and UCL: 31 December; booking for the January UAT-UK sitting closes
January 2027
ESAT, TMUA and TARA: 4–8 January. UCAS equal-consideration deadline: 13 January. Oxford and Cambridge decisions usually arrive by the end of the month. LNAT deadline for most universities: 25 January
February–March 2027
Offers arrive; medical school interviews continue; UCAS Extra opens in late February
April–May 2027
Reply to offers (firm and insurance) by your deadline; arrange finance, scholarships and visas; final revision; May/June exams begin
June 2027
Final exams; STEP for Cambridge Mathematics offers; end of June: last date to apply before Clearing
July–August 2027
Clearing; results in mid-August; places confirmed
September 2027
University begins. If you are applying next year instead, UCAT testing for 2028 entry is in the summer
What computer science is, what computer scientists do, why it matters, what the Cambridge International AS & A Level Computer Science (9618) course covers, and who it suits. The full course in this guide is planned.
What is computer science?
Computer science has two halves that support each other.
Theory: how computers store everything as binary, how processors and memory work, how data travels across networks, how databases organise information, and which problems can be solved efficiently at all.
Programming and problem solving: turning a problem into an algorithm (a precise list of steps), then into working code, then testing it until it is correct.
The central skill is computational thinking: breaking a big problem into smaller ones (decomposition), ignoring details that do not matter (abstraction), and spotting patterns you have solved before.
What do computer scientists do?
Software engineers design and build programs, from phone apps to the systems that run airports.
Data scientists and AI engineers build models that find patterns in data, recognise speech and images, or make predictions.
Security specialists protect systems from attack and design encryption.
Network and systems engineers keep the internet, cloud services and company networks running.
Researchers work on faster algorithms, new programming languages, quantum computing and the limits of computation.
Why it matters
Almost every field now depends on software: medicine, finance, science, transport, entertainment and government. Computer science also raises important questions about privacy, fairness in automated decisions, and the safe use of AI. Understanding how these systems work lets you build them, and also judge them.
What the A Level covers
The guide follows Cambridge International AS & A Level Computer Science (9618), the syllabus for exams in 2027–2029. The course in this guide is planned in these parts:
AS theory: information representation, communication and networks, hardware and logic gates, processor fundamentals, system software, security, ethics and databases.
AS programming: algorithm design, data types and structures, pseudocode, programming and testing.
A Level theory: data representation, communication protocols, hardware and virtual machines, encryption and artificial intelligence.
A Level programming: computational thinking, recursion, further data structures, object-oriented programming and other paradigms.
Exam readiness: paper guides and mock papers.
Is it for you?
Computer Science suits you if you enjoy logical puzzles, are patient when something does not work the first time, and like building things. You do not need to have programmed before, but you must be willing to practise regularly: programming is learnt by doing. Good Maths helps a lot, especially for algorithms and the theory papers.
It combines well with Maths (and Further Maths), Physics, Economics or Business. Many computer science degrees ask for Maths rather than Computer Science itself, so check the requirements.
The Computer Science course in this guide
The full course is planned and will be built later in the build order. When it is ready, its card on the home page will open the first chapter instead of this page. Until then, the Mathematics course is complete and builds the logical and algebraic skills that computer science relies on.
About Engineering
Start hereStudy time10 minutes
What engineering is, what engineers do, why it matters, how to prepare for it at A Level (there is no Cambridge Engineering A Level), and what this guide’s Engineering course will cover. The full course is planned.
What is engineering?
Engineering is applied science with a purpose. A scientist asks how the world works; an engineer uses that knowledge to solve a practical problem, within limits of cost, safety, materials and time. The main branches are:
Civil and structural engineering: buildings, bridges, roads, dams, water supply.
Electrical and electronic engineering: power grids, circuits, chips, communication systems.
Chemical engineering: turning raw materials into fuels, plastics, medicines and food at industrial scale.
Aerospace, biomedical, software and environmental engineering, among others.
Every branch follows the same design process: define the problem, research, design and model, build a prototype, test, and improve.
What do engineers do?
Engineers calculate loads and stresses, simulate designs on computers, choose materials, manage projects and teams, test prototypes, and make sure products are safe and meet regulations. They work in industry, consultancy, construction, energy, transport, healthcare and research. Engineering degrees lead to some of the best-paid and most in-demand graduate jobs.
Why it matters
Clean energy, safe water, transport, housing, communication and healthcare all depend on engineering. Problems such as climate change will be solved partly by engineers designing better batteries, grids, buildings and materials.
How to study it at A Level
There is no Cambridge International Engineering A Level. Engineering degrees almost always ask for:
Mathematics (essential), and often Further Mathematics;
Physics (essential for most branches);
a third subject such as Chemistry (needed for chemical engineering), Computer Science, Design and Technology or Electronics.
Other routes include OCR Design and Technology: Design Engineering, Eduqas Electronics, and vocational qualifications such as BTECs and T Levels.
What this guide’s Engineering course will cover
This guide’s Engineering course is not an exam course. It shows how A Level Maths and Physics become engineering, in these parts:
Foundations: units, estimation, the design process, and the maths engineers use most.
Mechanics and structures: forces, stress and strain, beams and simple structures.
Thermofluids: energy, heat engines and fluid flow.
Electrical and electronic: circuits, power and simple electronics.
Design and making: materials, manufacturing and testing.
Next steps: degrees, apprenticeships and how to prepare.
Is it for you?
Engineering suits you if you enjoy maths and physics and like seeing them used on real objects, solving open problems, and working in teams. The Mathematics and Physics courses in this guide are complete, and they are the best preparation you can do now.
The Engineering course in this guide
The full course is planned and will be built later in the build order. When it is ready, its card on the home page will open the first chapter instead of this page.
About Economics
Start hereStudy time10 minutes
What economics is, what economists do, why it matters, what the Cambridge International AS & A Level Economics (9708) course covers, and who it suits. The full course in this guide is planned.
What is economics?
Every society faces the economic problem: wants are unlimited, but resources (land, labour, capital and enterprise) are scarce, so choices must be made, and every choice has an opportunity cost. Economics studies those choices at two levels:
Microeconomics looks at individual markets: how supply and demand set prices, how firms decide what to produce, why some markets fail (pollution, monopolies) and how governments can step in.
Macroeconomics looks at the whole economy: growth, inflation, unemployment, the balance of payments, exchange rates, and the government and central bank policies that steer them.
Economists build models, simplified pictures of how things work (usually as diagrams), and test them against data.
What do economists do?
Government and central banks use economists to set interest rates, design taxes and benefits, and forecast the economy.
Banks, investment firms and consultancies hire economists to study markets and advise companies.
International organisations work on trade, development and poverty reduction.
Researchers study questions such as what reduces inequality or how to price carbon emissions.
An economics background is common in business, law, journalism, politics and public policy.
Why it matters
Economic decisions affect jobs, prices, housing, the environment and how much governments can spend on schools and hospitals. Understanding economics helps you follow the news, judge politicians’ promises, and make better decisions with your own money.
What the A Level covers
The guide follows Cambridge International AS & A Level Economics (9708), the syllabus for exams in 2026–2028. The course in this guide is planned in these parts:
AS microeconomics: the basic economic problem, the price system, demand and supply, elasticity and government intervention.
AS macroeconomics: national income, aggregate demand and supply, inflation, unemployment, international trade and government policy.
A Level microeconomics: consumer behaviour and behavioural economics, costs and revenue, market structures, the growth of firms, efficiency, labour markets, and inequality and redistribution.
A Level macroeconomics: the circular flow and the multiplier, money and banking, unemployment and inflation in depth, policy aims and conflicts, economic development and globalisation.
Exam readiness: diagram practice, essay and data-response skills, paper guides and mock papers.
Is it for you?
Economics suits you if you follow the news, like explaining why things happen, and enjoy a mix of diagrams, numbers and argument. You will write essays that build a chain of reasoning and then evaluate: weighing up when a policy works and when it does not. Comfortable numeracy helps (percentages, index numbers, reading graphs).
It combines well with Maths (essential for many top economics degrees), Business, Accounting, History, Geography or Politics.
The Economics course in this guide
The full course is planned and will be built later in the build order. When it is ready, its card on the home page will open the first chapter instead of this page.
About Business
Start hereStudy time10 minutes
What business studies is, what people in business do, why it matters, what the Cambridge International AS & A Level Business (9609) course covers, and who it suits. The full course in this guide is planned.
What is business studies?
A business takes resources and turns them into goods or services that customers will pay for. Business studies follows that process through the main functions of an organisation:
People: organisational structure, leadership, motivation and recruitment.
Marketing: market research, pricing, promotion and how products reach customers.
Operations: producing efficiently, quality, inventory and location.
Finance and accounting: costs, profit, cash flow, budgets and investment decisions.
Strategy: where the business is going, and how it responds to competitors, the economy, technology and the law.
The subject is applied: you are usually given a case study of a real or realistic business and asked to analyse its situation and recommend what it should do.
What do people in business do?
Entrepreneurs start new businesses and take risks to grow them.
Managers lead teams, plan projects and solve problems in every kind of organisation.
Marketing, sales and brand specialists find customers and keep them.
Operations and supply-chain managers make sure products are made and delivered on time.
Analysts and consultants study data and advise companies on strategy.
Charities, hospitals, schools and governments need the same skills as companies.
Why it matters
Businesses create most jobs, products and services, and their decisions affect workers, customers, communities and the environment. Understanding business helps you in almost any career, and if you ever start something of your own, it gives you the basic toolkit: a plan, a budget and an understanding of your customers.
What the A Level covers
The guide follows Cambridge International AS & A Level Business (9609), the syllabus for exams in 2026–2028. The course in this guide is planned in these parts:
AS Level: business and its environment, people in organisations, marketing, operations management and finance and accounting.
A Level: the same five areas in more depth, plus business strategy and decision-making tools.
Skills: business calculations, case-study technique and extended writing.
Exam readiness: paper guides and mock papers.
Is it for you?
Business suits you if you are interested in how organisations really work, enjoy discussing real companies, and can build a reasoned recommendation. You will write a lot: analysis that links causes and effects to the business in the case, then a judgement. There are also calculations (profit, ratios, break-even, investment appraisal) that need steady numeracy.
It combines well with Economics and Accounting, Maths, a language, or Psychology. Business degrees rarely require A Level Business, but many like Maths.
The Business course in this guide
The full course is planned and will be built later in the build order. When it is ready, its card on the home page will open the first chapter instead of this page. Until then, the Tools section already has two business calculators (break-even and net present value).
About Accounting
Start hereStudy time10 minutes
What accounting is, what accountants do, why it matters, what the Cambridge International AS & A Level Accounting (9706) course covers, and who it suits. The full course in this guide is planned.
What is accounting?
Accounting has two main branches.
Financial accounting records what has happened. Every transaction is entered by double-entry bookkeeping (each one affects two accounts), the records are checked, and at the end of the year they become financial statements: the statement of profit or loss (did the business make a profit?) and the statement of financial position (what does it own and owe?).
Cost and management accounting looks forward. It works out what products really cost, sets budgets, compares results with plans, and helps managers decide: should we make this product or buy it in, accept this order, invest in this machine?
Accounting also uses ratios to analyse performance (profitability, liquidity, efficiency) and has rules and principles so that accounts are reliable and comparable.
What do accountants do?
Auditors check that a company’s accounts are true and fair.
Management accountants help businesses control costs and plan.
Tax advisers help people and companies follow tax law.
Financial analysts study accounts to value companies and advise investors.
Forensic accountants investigate fraud.
Many business leaders started in accounting, because it shows how every part of an organisation fits together.
Why it matters
Investors, banks, governments and employees all rely on accounts being accurate. Good accounting helps businesses survive (most failures are really cash-flow failures), and bad or dishonest accounting has caused some of the largest business collapses in history. It is also a useful life skill: budgeting and understanding money.
What the A Level covers
The guide follows Cambridge International AS & A Level Accounting (9706), the syllabus for exams in 2026–2028. The course in this guide is planned in these parts:
AS financial accounting: the accounting equation, books of prime entry, double entry, the trial balance and errors, bank reconciliation and control accounts, depreciation, accruals and prepayments, inventory, financial statements of sole traders, partnerships, limited companies, clubs, manufacturing accounts, incomplete records and ratio analysis.
AS cost and management accounting: costing materials and labour, absorption costing, and marginal costing with break-even.
A Level financial accounting: partnership changes, business purchase and mergers, company accounts in depth, statements of cash flows, international accounting standards, auditing and ethics, and interpreting accounts.
A Level cost and management accounting: activity-based costing, budgeting, standard costing and variances, and investment appraisal.
Exam readiness: paper guides and mock papers.
Is it for you?
Accounting suits you if you like order, accuracy and numbers, and get satisfaction from making things balance. Most of the work is calculation and layout, done carefully and in the right format, but there are also written parts where you explain and recommend. You do not need advanced maths: arithmetic, percentages and care are what count.
It combines well with Business, Economics and Maths. It is a strong choice if you are considering accounting, finance or business degrees, or a professional accounting apprenticeship.
The Accounting course in this guide
The full course is planned and will be built later in the build order. When it is ready, its card on the home page will open the first chapter instead of this page.
About Psychology
Start hereStudy time10 minutes
What psychology is, what psychologists do, why it matters, what the Cambridge International AS & A Level Psychology (9990) course covers, and who it suits. The full course in this guide is planned.
What is psychology?
Psychologists try to explain and predict behaviour using evidence. They form a hypothesis, design a study (an experiment, observation, interview or questionnaire), collect data, and test whether the data support the idea. Because people are complicated, psychology looks at behaviour from several approaches:
the biological approach (the brain, hormones, genes);
the cognitive approach (memory, attention, thinking);
the learning approach (how experience and rewards shape behaviour);
the social approach (how other people and groups affect us).
A big part of the subject is judging research: was the sample representative, was the study ethical, could the result be repeated, does it apply to real life?
What do psychologists do?
Clinical psychologists assess and treat mental health problems such as depression, anxiety and phobias.
Educational psychologists help children who struggle at school.
Health psychologists study stress, pain and how to help people change habits like smoking.
Organisational psychologists work with companies on motivation, leadership and wellbeing at work.
Forensic psychologists work with courts and prisons; researchers run studies in universities.
Psychology is also used in marketing, user-experience design, sport, policing and the design of public services.
Why it matters
Mental health problems affect a large share of people at some point in their lives. Psychology research shapes how they are treated, how schools teach, how witnesses are questioned in court, and how products and services are designed. It also helps you understand yourself and others, and spot weak claims about human behaviour.
What the A Level covers
The guide follows Cambridge International AS & A Level Psychology (9990), the syllabus for exams in 2028–2030. The course in this guide is planned in these parts:
Research methods: experiments, self-reports, observations, case studies, correlations, sampling, ethics and data analysis.
Approaches and core studies: the biological, cognitive, learning and social approaches, each through key studies you learn and evaluate, and the issues and debates that run through them.
A Level options: clinical psychology, consumer psychology, health psychology and organisational psychology.
Exam readiness: paper guides and mock papers.
Is it for you?
Psychology suits you if you are curious about people and enjoy arguing from evidence. You will write a lot: describing studies precisely and evaluating them in balanced paragraphs. There is also maths: descriptive statistics, graphs and reading data. Remember that it is a science subject at A Level, and much of it is about how research is done.
It combines well with Biology, Maths, Sociology, English or Economics. Psychology degrees rarely require A Level Psychology, but many like a science or Maths.
The Psychology course in this guide
The full course is planned and will be built later in the build order. When it is ready, its card on the home page will open the first chapter instead of this page.
About Other subjects
Start hereStudy time5 minutes
What the “Other subjects” section of this guide will be: short, honest guides to other popular A Levels (what each subject is, what it involves, who it suits and what it leads to), to help you choose. It is planned.
What this section is
The full courses in this guide (Mathematics, Physics, Chemistry, and soon Biology and others) teach a whole syllabus. Many students take at least one subject this guide does not teach in full. For those, Other subjects will give a short guide to each, covering:
what the subject is and what you actually do in it;
how it is assessed (exams, essays, coursework, practical work), in general terms;
the skills it builds and the kind of student it suits;
which subjects it combines well with and which degrees or careers it supports;
where to find the official specification and good free resources.
Subjects planned
The section is planned in these groups:
Sciences and technology: Information Technology, Environmental Management and Marine Science, and Physical Education.
English and languages: English Literature, English Language, modern languages, and Classics and Latin.
Humanities and social sciences: History, Geography, Sociology, Law, Politics and Government, Religious Studies and Philosophy, and Global Perspectives, Thinking Skills and the EPQ.
Creative subjects: Art and Design, Music, Drama and Theatre, and Media and Film Studies.
More subjects at a glance: short notes on further subjects.
How to use it
Read the guides for every subject you are considering, then use Choosing your subjects to check that your combination keeps the doors open for the degrees and careers you are thinking about.
The Other subjects section in this guide
This section is planned and will be built last. When it is ready, its card on the home page will open it instead of this page.
Graph plotter
Interactive
Type any function of and see its graph. Add sliders for , , and to explore transformations.
Periodic table
Interactive
All 118 elements with relative atomic masses, groups, periods and electron configurations. Select an element to see its details.
Calculators
Interactive
Small tools for the calculations you will do again and again: relative formula mass, UCAS points, break-even, investment appraisal and unit conversions.
Relative formula mass
UCAS tariff points
Break-even
Investment appraisal
Units and prefixes
Glossary
Interactive
Every key term defined in the guide, in one searchable list. Each entry links back to the chapter that explains it.
Maths formula sheet
Reference
Every key formula from the course in one place, each linked back to the chapter that teaches it.
Cambridge gives you the formula list MF19 in every 9709 exam, but it only helps if you already know which formula fits which question and how to use it. This page collects every key box from the Maths chapters in one place.
Every key formula from the course in one place, each linked back to the chapter that teaches it.
Cambridge prints a list of data and formulae at the start of every 9702 paper. Knowing what each symbol means and when each equation applies is what earns the marks. This page collects every key box from the Physics chapters.
Every key formula from the course in one place, each linked back to the chapter that teaches it.
Cambridge gives you a data booklet in 9701 exams, with values such as bond energies and electrode potentials. The equations below are the ones you must know how to use. This page collects every key box from the Chemistry chapters.
Every key formula from the course in one place, each linked back to the chapter that teaches it.
Cambridge 9700 papers give you the statistical formulae you need, but you must know which test to choose and how to read the result. This page collects every key box from the Biology chapters.
Every key formula from the course in one place, each linked back to the chapter that teaches it.
The key equations engineers use every day, built on A Level Maths and Physics. This page collects every key box from the Engineering chapters.
The formulas appear here as the chapters are written.
Business, economics and accounting formulas
Reference
Every key formula from the course in one place, each linked back to the chapter that teaches it.
Cambridge Business, Economics and Accounting exams do not give you a formula sheet, so you must learn these by heart. This page collects every key box from those three courses.
The formulas appear here as the chapters are written.
Maths: learn more online
Reference
Every “Learn more online” link from the Maths chapters in one place: videos, practice questions, explorations, reading and past papers, grouped by topic.
These links leave the guide and need the internet. Each one was chosen for a chapter, and each chapter keeps its own short list at the end. Use them after you have worked through the chapter, not instead of it: watch a video when an explanation has not clicked, and use the practice and past-paper links to test yourself under exam conditions. Pick a kind of link below to see only that kind.
9709 Paper 6 past papersPhysics & Maths Tutortheir page “cie-paper-7” holds Paper 6Unofficial archive
Physics: learn more online
Reference
Every “Learn more online” link from the Physics chapters in one place: videos, practice questions, explorations, reading and past papers, grouped by topic.
These links leave the guide and need the internet. Each one was chosen for a chapter, and each chapter keeps its own short list at the end. Use them after you have worked through the chapter, not instead of it: watch a video when an explanation has not clicked, and use the practice and past-paper links to test yourself under exam conditions. Pick a kind of link below to see only that kind.
Every “Learn more online” link from the Chemistry chapters in one place: videos, practice questions, explorations, reading and past papers, grouped by topic.
These links leave the guide and need the internet. Each one was chosen for a chapter, and each chapter keeps its own short list at the end. Use them after you have worked through the chapter, not instead of it: watch a video when an explanation has not clicked, and use the practice and past-paper links to test yourself under exam conditions. Pick a kind of link below to see only that kind.
Atoms, compounds, and ionsKhan Academyvideo lessons on atoms, electron configurations, the Periodic Table and ionic formulas (written for a US course, so the order differs)
Group 2 menuChemguideseparate pages on atomic properties, the reactions with water, oxygen and acids, the solubility trends and the thermal stability of the nitrates and carbonates
Group 7 (halogens) menuChemguideseparate pages on physical properties, halogens as oxidising agents, reactions of halogens with sodium hydroxide, and halide ions as reducing agents and their tests
Le Chatelier’s PrincipleChemguidea clear explanation of the effect of changing temperature, pressure and concentration on a position of equilibrium, which is a common multiple-choice topic
Cambridge International 9701 past papersCambridge Internationalthe board’s own page for past papers and mark schemes; Paper 1 papers are the multiple-choice ones
Past Papers and Examiner ReportsCambridge Internationalthe real Paper 4 question papers with mark schemes and examiner reports, for timed practice after these sets
Biology: learn more online
Reference
Every “Learn more online” link from the Biology chapters in one place: videos, practice questions, explorations, reading and past papers, grouped by topic.
These links leave the guide and need the internet. Each one was chosen for a chapter, and each chapter keeps its own short list at the end. Use them after you have worked through the chapter, not instead of it: watch a video when an explanation has not clicked, and use the practice and past-paper links to test yourself under exam conditions. Pick a kind of link below to see only that kind.
Biological macromoleculesOpenStax Biology 2efree university textbook chapter on carbohydrates, lipids, proteins and nucleic acids, beyond the syllabus in places
Papers
Paper 2 past papersPhysics & Maths Tutorfind the carbohydrate questions in real papersUnofficial archive
Genes and proteinsOpenStax Biology 2efree university textbook chapter on the genetic code, transcription and translation, beyond the syllabus in places
Evolution of populationsOpenStax Biology 2efree university textbook chapter on allele frequencies, drift and Hardy–Weinberg, beyond the syllabus in places
Papers
Paper 4 past papersPhysics & Maths Tutorfind the selection and Hardy–Weinberg questions in real papersUnofficial archive
Population and community ecologyOpenStax Biology 2efree university textbook chapter on populations, sampling and communities, beyond the syllabus in places
Papers
Paper 5 past papersPhysics & Maths Tutorpractise planning and analysis questions on sampling and statisticsUnofficial archive
The Basics: DNA, genes and proteinsLearn.Genetics, University of Utahclear interactive background on genes and how a change in a gene affects a protein
Biotechnology and genomicsOpenStax Biology 2efree university textbook chapter that includes gene therapy and genetically modified organisms, beyond the syllabus in places
Papers
Paper 4 past papersPhysics & Maths Tutorfind the genetic technology questions in real papersUnofficial archive
Practical skills notesPhysics & Maths Tutornotes and questions on planning, statistics and evaluation
Papers
Past papers by paper: Paper 5Physics & Maths Tutorreal Paper 5 question papers and mark schemes to try under timed conditionsUnofficial archive
Practice quizzes
Interactive
Mixed multiple-choice questions drawn from every chapter. Pick a subject and a length, answer, and get a list of chapters to revise.
What to revise next
Interactive
Your weakest chapters first, from the mock papers you have marked, your recent quiz answers and the checklists you have not ticked yet.
How the list is made
Everything here comes from this browser: nothing is sent anywhere.
Mock papers. When you finish a mock and type in your mark for each question, every mark you lost counts
against the chapter that question revises. Only your latest marking of each mock counts, so redoing a mock
replaces the old result.
Quizzes. The last 10 answers you gave for each chapter’s questions, in chapter quizzes and in
Practice quizzes. A wrong answer counts as much as 2 lost marks.
Checklists. In a chapter you have marked as learned, each “I can” line you have not ticked counts as half a mark.
The bar shows how far behind each chapter is compared with the top one.