How to Prepare for IGCSE Exams

Most students take between seven and ten IGCSEs, usually over Years 10 and 11. Cambridge designs each subject around roughly 130 guided learning hours, which isn't much time per subject once it's spread across two years. That's why a lot of IGCSE students feel fine in September and completely behind by March. The problem is rarely one hard subject. It's ten reasonable ones competing for the same evenings.

Know your board, your syllabus and your tier

"IGCSE" usually means one of two qualifications, and the details matter more than people expect.

Two things to check today:

• Your syllabus code and version. Cambridge IGCSE Maths, for example, is 0580 (A* to G) or 0980 (9 to 1), and each syllabus lists the years it's examined in. Syllabuses change every few years, so an old revision guide or past paper might include topics that have since been removed, or miss new ones.
• Your tier. At Cambridge, Core papers lead to grades C to G and Extended papers to A* to E. The overlap of C, D and E is there to catch students who do better or worse than expected, but Core can't give you higher than a C. If you're aiming for an A, you need to be on Extended.

What the papers look like

Knowing the paper structure tells you how to practise. A few Cambridge examples:

• Maths (0580). Since 2025, one paper at each tier is non-calculator. There's also a formula sheet on page 2 of the paper, but you're expected to memorise anything that isn't on it.
• Biology, Chemistry and Physics. You sit a multiple-choice paper, a theory paper and a practical paper. The practical paper is either a practical test in a lab or the written Alternative to Practical, depending on your school. Both are exam papers you can practise for.
• Languages. Many language syllabuses include a speaking test or a coursework option, and these often happen before the main exam season. Find out your dates early.

If you're on Edexcel, the same idea applies: download the specification and a sample paper for each subject, and write the paper structure at the top of your checklist.

How IGCSE papers are marked

• Command words decide the answer. "State" wants a short fact, "describe" wants what happens, and "explain" wants why. "Suggest" catches a lot of students out: it means apply what you know to a situation you haven't seen before, and there can be several acceptable answers.
• The marks tell you how many points to make. A 3-mark question almost always needs three separate points. Writing one long, clever point usually gets one mark.
• Show your working and include units. In Maths and the sciences, method marks and units are easy marks to lose, and easy ones to keep.
• Mark schemes use specific wording. In the sciences especially, "the particles vibrate more" and "the particles gain kinetic energy" might not earn the same mark. Learn the key terms the mark scheme accepts.
• Read the examiner reports. Cambridge publishes a report on each paper after every exam series, describing where candidates lost marks. It's the closest thing to a list of what not to do.

How to use past papers properly

Past papers are the best IGCSE resource there is, but only if you use them in the right order.

1. Year 10 and early Year 11: topic questions. After each unit in class, do the past-paper questions on just that topic. You'll learn how it gets examined while it's fresh.
2. From the autumn of Year 11: full papers, timed. Sit them in the real time limit, without notes, then mark them strictly with the official mark scheme.
3. Keep an error log. For every lost mark, write down the topic and why you lost it: didn't know it, misread the question, missed a unit, ran out of time. After a few papers, the pattern will tell you what to revise.
4. Save the most recent papers. Keep the last two or three years for your final weeks, so you have fresh, realistic practice when it matters most.

How to revise eight or more subjects at once

The biggest IGCSE mistake is studying subjects in long blocks: a week of Chemistry, then a week of History, then a week of Maths. By the time you come back to Chemistry, you've forgotten much of it. Rotating subjects works much better.

• Touch every subject at least twice a week, even if it's only 30 minutes of flashcards.
• Weight your time toward weaker subjects. A simple red, amber and green rating for each syllabus topic shows you where the hours should go.
• Pair heavy and light subjects on the same day, such as Maths with Geography, so you're not doing two draining subjects back to back.
• Test yourself rather than rereading. Research on study techniques consistently finds that practice testing and spacing your revision out work far better than highlighting and rereading.

A plan for Years 10 and 11

This assumes a two-year course with exams in May and June of Year 11. For a November series, move everything a few months later.

How much should you study?

During the school term of Year 11, one and a half to two and a half hours of independent study on school days is realistic for most students, with a longer session at weekends. In study leave, five to six focused hours a day is plenty, split into blocks of 45 to 60 minutes with proper breaks. Beyond that, most students just get tired.

Earlier in the course, consistency matters much more than volume. Twenty minutes of flashcards every day will do more for you than one long weekend session. Our guide to how many hours to study for IGCSE breaks this down by year and subject.

Mistakes that cost IGCSE grades

• Being entered for the wrong tier. If you're aiming for an A on Core, talk to your teacher now, not in March.
• Revising from the wrong syllabus version. Check the years printed on the syllabus and your past papers.
• Skipping the practical paper. Alternative to Practical questions follow patterns, and they're very learnable.
• Leaving "easy" subjects until the end. They're usually where you lose marks you should have had.
• Marking your own papers generously. If the mark scheme doesn't give the mark, neither should you.

Keep your revision honest

With eight or more subjects, it's very easy to spend a week on the three you like and feel productive. The only way to know is to measure it.

Start a timer when you begin real revision, stop it when you drift, and tag each session by subject. At the end of the week you'll see exactly which subjects got time and which got skipped. That's what Group Study Timer is for. It logs focused hours by subject, keeps a daily streak, and lets you study with friends sitting the same exams. When IGCSEs are done, our guide on how to prepare for A-Levels covers the next step.

Frequently asked questions

Sources we checked in September 2026: Cambridge on IGCSE teaching hours, Core and Extended, IGCSE Mathematics 0580 and its FAQs, and Dunlosky et al., Improving Students' Learning With Effective Learning Techniques (2013). Details differ by board, syllabus and exam year, so always check your own syllabus.