Most students don't fail IGCSE or O Level exams because the subjects are too hard. They struggle because revision starts late, past papers come too close to the exam, and weak topics never get fixed. A simple plan solves all three.
Before you start: make a topic list
Download the syllabus for each subject from the Cambridge or Edexcel website and copy the list of topics into a sheet. Rate each topic red, amber or green. That list becomes your plan: everything below is about turning red and amber into green.
Months 1–2: finish and consolidate the syllabus
- Finish any topics your school hasn't covered yet. Don't wait for class if the exam is close.
- Make one page of short notes per topic: definitions, formulas, key diagrams.
- After each topic, answer 10–15 past paper questions on it and mark them.
- Keep a mistake log: every question you get wrong, and why.
Months 3–4: topic-wise past papers
Now switch most of your time to topical past paper questions, grouped by topic. This is where marks really start to rise, because you learn exactly how examiners phrase questions and what the mark scheme rewards. Our guide on how to use past papers properly explains the method step by step.
Months 5–6: full timed papers and repair
- Sit at least one full paper per subject per week, under exam timing.
- Mark it the same day and add every lost mark to your mistake log.
- Spend the next study session only on the topics those mistakes came from.
- In the final two weeks, redo papers you scored lowest on, and re-read your mistake log daily.
A sample weekly timetable
| Day | Session 1 (1 hr) | Session 2 (1 hr) |
|---|---|---|
| Monday | Maths: topical questions | Chemistry: notes + questions |
| Tuesday | Physics: topical questions | English: reading practice |
| Wednesday | Biology: topical questions | Maths: mistake log |
| Thursday | Chemistry: topical questions | Second language / elective |
| Friday | Physics: mistake log | Light review of notes |
| Saturday | Full timed paper | Mark it + fix mistakes |
| Sunday | Full timed paper (different subject) | Rest or catch up |
Common mistakes to avoid
- Re-reading notes instead of answering questions. Reading feels productive; practice actually is.
- Only doing topics you already like.
- Leaving full papers until the final month.
- Studying late into the night before the exam instead of sleeping.
When a tutor helps most
If you're stuck on the same red topics after two passes, or you're scoring well in topical questions but losing marks under time pressure, a subject specialist can find the cause quickly. Our IGCSE and O Level teachers build exactly this kind of plan around each student, with fees starting at $12/hour. See all fees.
Frequently asked questions
01How many hours a day should I study for IGCSE or O Level?
Around 2 hours on school days and 3–4 hours on weekends is enough for most students six months out, rising in the final two months. Consistency matters more than long sessions.
02When should I start doing past papers?
Start topic-wise past paper questions as soon as you finish a topic, and full timed papers about three months before the exam.
03Is six months enough to prepare?
Yes, for most students who have been attending school. If large parts of the syllabus are untaught, add a month at the start or get a tutor to cover the gaps quickly.
