How to revise for GCSE maths
8 min read · updated 2026-08-31
GCSE maths is the subject parents ask us about most, and the revision mistakes are remarkably consistent: rereading notes, watching videos without doing questions, and leaving past papers too late. Here is the system our tutors use, and why it works.
Start from a past paper, not a textbook
Sit one full past paper from your exam board (AQA, Edexcel or OCR) under timed conditions before revising anything. Mark it honestly with the official mark scheme. The paper tells you your real grade and, more importantly, gives you a ranked list of lost marks: that list is your revision plan.
Target weak topics with spaced practice
The EEF's research summary on spaced practice points the same way as classroom experience: returning to a topic in short sessions over weeks beats one long cram. Split your lost-marks list into high-frequency topics first (the big scorers like algebra manipulation, ratio and proportion, and geometry rules), practise each with questions, then revisit each topic again after a week and again after three.
Mark like an examiner
GCSE maths marks are awarded for method, not just answers. Working in neat lines, writing the formula before substituting, and never leaving a question blank can be worth several grades across a paper. Mark your own work against the official scheme and ask: would an examiner give this full marks? That habit alone changes how you write.
A weekly schedule that works
- ✓ Two topic sessions of 30-40 minutes on your weakest areas
- ✓ One timed section (half a paper) mid-week
- ✓ One full past paper every week from half term, marked and reviewed
- ✓ A running 'error log': every mistake gets one line and a redo date
Know your exam board's rules
AQA, Edexcel and OCR each publish their specifications, past papers and examiner reports free on their websites. Examiner reports are underrated: they list, in the examiners' own words, exactly where students lost marks last year. Check which papers allow formula sheets and which formulae you must memorise, because boards differ.
FAQs
How many past papers should I do?＋
Most students who move a grade or more complete 8-15 full papers across the year, each one marked and reviewed. The review is the revision; simply finishing papers is not.
I'm predicted a 5 but need a 7. Is one term enough?＋
Often yes if the gaps are specific: grades 6-7 content builds directly on grade 5 skills, and a targeted plan on your weakest high-mark topics can move a grade in a term of consistent work.
Should I revise topics I already find easy?＋
Briefly. Easy topics still give easy marks if you stay sharp, but the fastest grade gains come from your error log, so weight your time there.
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