You are doing the revision. You are working through past papers, you have the notes, you have watched the videos, and the grade on the next mock comes back the same as the last one. That is the most frustrating place to be in A Level maths, because it feels like effort should be enough and it is not. The problem is almost never how much you are doing. It is what you do with each question after you have marked it.
I got straight As across five A Levels and eight A* at O Level, and I did it with a past-paper system that most students never actually run properly. This is that system: the exact way I used past papers, the one marking rule that turns them into grade improvement, and the reason I stopped making notes for maths entirely. Everything here is what I did, not theory I read afterwards.
The short answer
A Level maths is a doing subject, so you revise by working questions and closing gaps, not by rewriting notes. Do it in two rounds. Round one is topic-by-topic questions, where you mark not just what you got wrong but what you got right by guessing, and you rebuild that pile until it is clean. Round two is full past papers, timed, under exam conditions, going back the last five years. The single change that moves grades is the marking discipline in round one. If you take one thing from this article, take that.
Why doing more past papers is not moving your grade
Here is the mistake almost everyone makes, and I made it too until I fixed it. You finish a paper, you mark it, you look at the questions you got wrong, and you move on. The questions you got right, you never look at again.
That feels sensible. It is the reason your grade is stuck.
On any given paper there are questions you got right because you understood them, and questions you got right because you guessed, half-remembered a method, or fluked the arithmetic. Those second ones are wrong answers wearing a right answer’s clothes. In the real exam, with different numbers and a bit more pressure, they turn back into dropped marks. The mistake almost every student makes is reviewing what they got wrong and forgetting what they got right by luck.
The fix is a marking rule, and it costs you nothing but honesty. Use this on every paper you sit. As you mark, tag each question:
- W: you got it wrong.
- G: you got it right, but you guessed, half-remembered, or were unsure.
- H: you got it right, but it felt hard or slow.
Ignore everything else. Your review pile is only the W, G and H questions. A worked example from my own marking: 50 questions, 47 right, 3 wrong, and 5 of the “right” ones were really guesses. That is 8 questions to review, not 3. The other 42 do not exist as far as revision goes.
The 60/40 rule: stop revising most of your syllabus
Over a full A Level subject you will do something like a thousand practice questions. Roughly six hundred of them are basic. You get them right without thinking, every time. Revising the 600 questions you already get right is wasted time; the 400 you found hard, guessed, or got wrong are the entire job.
If you are solid on the first few chapters and never drop a mark there, there is no point revising them at all. Not skimming them, not redoing them. It sounds reckless. It is just an honest reading of your own question log.
This is why the marking rule matters so much. The W/G/H tags are what build the 400-question pile in the first place. Without them you cannot tell your 600 from your 400, so you do one of two useless things: revise everything, run out of time, and go into the exam having spread yourself thin; or revise what already feels comfortable, which is the 600, and walk in no stronger than before. The marking discipline is what makes “stop revising 60 percent of your syllabus” a plan rather than a gamble.
The two-round past-paper method (copy this)
This is the whole system, in order. Round one closes your concept gaps. Round two trains exam performance. Most students do only one round, usually badly, and wonder why nothing moves.
Round 1: topic questions, marked properly
- Work through past-paper questions by topic, not whole papers yet. Every board and every site below lets you filter questions by topic.
- Mark with the W/G/H rule above. Set the tagged questions aside as your review pile.
- Wait about a month, until you have genuinely forgotten the answers. Then redo the review pile from scratch. You will expect full marks and get 60 to 70 percent, which is the point: it shows you the gap was real.
- Repeat the pile one to three times until it is clean, meaning you get it right cold, without recognising the answer.
This is the round people skip because it is slow and unglamorous, and it is the one that actually raises the grade.
Round 2: full papers, timed, exam conditions
- Sit whole past papers to time, mark scheme closed, notes closed. Treat every one as if it were the real thing.
- Mark them, and while you are reading each question the first time, flag any that felt difficult or confusing even if you got it right. Those go into the review pile too.
- Do the last five years per board. I printed the last five years for every subject. Once I was scoring 95 and up, going further back added nothing. Depth of marking beats volume of papers.
Notes versus past papers for A Level maths
For a content-heavy subject, notes earn their place. For maths they mostly do not, and this is where a lot of well-meaning effort goes to die.
The thing the exam tests is whether you can do questions, correctly, under time. Rewriting the formula list into neater notes does not train that. It feels like progress and produces almost none. When I look back at what actually separated the grades, it was never the quality of anyone’s notes.
The two subjects that were genuinely hard for me at O Level were the two that were pure memorisation, because memory is not my strength. Everything I could reason through, including the maths and sciences, was tractable once I had done enough questions. So treat maths as the reasoning subject it is: do questions, and when a specific fact or method will not stick, use active recall, which means writing it out from memory without looking, then checking. Blurting it onto a blank page beats copying it into a nicer format every time.
Where to actually get the papers
The sites that rank for A Level maths revision are good, and I would point you to them. But notice what they are: libraries of materials. You can own every past paper ever set and still be stuck, because papers are materials and grades come from a method. Bring the two-round system above to these, and they become powerful.
| Resource | Best for | Cost |
|---|---|---|
| Physics and Maths Tutor | Questions by topic and model solutions, ideal for round one | Free |
| Maths Genie | Past papers, exam questions and revision by grade | Free |
| AQA assessment resources | Official papers, mark schemes and grade boundaries | Free |
| Edexcel (Pearson) maths | Official specification, papers and mark schemes | Free |
Pick your exam board, pull the topic questions for round one and the last five years of full papers for round two, and use the marking rule on all of them. That is the entire toolset.
The grade you can lose before you read a question
Every revision guide optimises the studying and says nothing about the day itself. That is a gap, and I learned it the expensive way.
At AS I sat two exams on the same day, in two different places. A Physics practical in the morning, a Psychology paper in the afternoon across town. Moving between the venues cost me more time than I had, so I walked into the Psychology exam about fifteen minutes after it started, hungry and already worn down. By then I had stopped caring, answered what I could in the time left, and the result showed it. It was never a knowledge failure. A grade can be lost before you read a single question.
So, a short checklist that costs nothing and has nothing to do with maths:
- Check now whether any two of your exams share a date.
- Find out whether same-day papers are at the same venue.
- Work out the travel and the gap between them, this week, not on the morning.
- Eat between exams, and bring water and something fast.
FAQ
I keep doing past papers but my grade is not improving. Why?
Almost always because of how you mark them. If you only review what you got wrong and never revisit the questions you got right by guessing, you leave your real weak spots untouched. Tag every question you guessed or found hard, build a review pile, and redo that pile a month later until it is clean. The paper count is not the problem; the marking discipline is.
How many past papers should I do, and how far back should I go?
Two rounds: topic questions first, then full timed papers for the last five years per board. I printed five years for every subject and going further back added nothing once I was consistently scoring in the 90s. Beyond five years the syllabus and question style drift enough that the extra papers stop being representative. Depth of marking on five years beats skimming ten.
Should I make notes or flashcards for A Level maths?
Do questions. Maths is tested as a doing subject, so time spent rewriting notes is mostly wasted. Keep a single formula reference if you like, but the work that moves the grade is solving problems and, when a method will not stick, writing it out from memory without looking rather than copying it neatly.
I understand it in class but freeze in the exam. What do I do?
Two things. First, do round two properly: full papers, timed, no mark scheme and no notes open, so the exam is not the first time you perform under those conditions. Second, protect your energy and logistics on the day, because a tired, rushed start turns understanding into blanks. Understanding in a calm room and performing in a timed hall are different skills, and only the timed practice trains the second one.
Which is the best site for A Level maths past papers?
For questions by topic and model solutions, Physics and Maths Tutor is hard to beat, and Maths Genie is excellent for full papers and revision by grade. For the definitive papers, mark schemes and grade boundaries, go straight to your own exam board, AQA or Edexcel. Use whichever your board maps to, and remember the site is only as good as the method you bring to it.
Where this comes from
I sat Cambridge O Levels in 2014 (eight A*), AS Levels in 2015 (distinction across five subjects) and A Levels in 2016 (straight As across five subjects), and I now tutor A Level Computer Science one to one at cambridgecomputersciencetutor.com. The revision system above is the one I actually used, marking rule and all, not advice I assembled afterwards. The one thing I would change now is starting round one earlier, because the month-later re-test only works if you leave time for the month to pass. I do not have a teaching qualification, and I am not going to pretend the maths content itself was my weak point, because it was not. What I can tell you is exactly what turned a stack of past papers into the grades, and it was the marking discipline, not the paper count.