Past papers are the closest thing to the real exam that a student can get. They are also easy to waste. Doing a paper once, checking the score and moving on teaches very little. This four-pass routine turns each paper into a short course in how the exam works.
Pass 1: learn the questions, untimed
Pick a paper from a past year and work through it with your notes open and no clock. The aim is not a score. The aim is to see how the examiners ask about each topic: which words they use, how many marks a question carries, and how much working or explanation they expect for those marks.
Then read the mark scheme next to your answers. Notice where marks are awarded for a method or a named idea rather than a final answer. Many boards also publish examiner reports, which explain where students lost marks across the whole cohort. These are worth reading, because they describe the mistakes other students make every year.
Pass 2: timed sections, notes closed
Choose one section or a block of questions and give yourself the time the real paper would allow for it. Close your notes. When time is up, stop, mark with the mark scheme and write down every mark you lost and why.
Pass 3: a full paper in exam conditions
Sit a complete paper in one go, at the time of day the exam will be held if you can. No phone, no notes, no pauses. This builds stamina and shows how you manage time across the whole paper, not just one section.
Pass 4: the error log and the retest
After each paper, add every lost mark to a simple log with three columns: the topic, the reason (did not know it, knew it but misread the question, ran out of time, careless slip) and the fix. Look for patterns. If most losses come from misreading questions, more content revision will not help; slowing down and underlining the command word will.
A week later, redo only the questions you got wrong, from memory of the method rather than the answer. If you can do them cleanly, the gap is closed.
A few cautions
- Use the right syllabus. Question styles and topics change between specifications, so check that a paper matches the version you are studying.
- Do not run out of papers early. Save the most recent ones for the final weeks.
- A tutor can speed this up by marking a paper with you, explaining the mark scheme and picking the next topic from your error log.