"What's the best way to study for an exam?" is one of the most-asked questions online — and most answers are vague ("just revise more"). Here's a specific method built on what actually makes information stick, plus a plan you can follow from today to exam day.
Why most revision fails
Re-reading notes, highlighting, and watching recap videos all feel productive — and they're nearly worthless for memory. They create a familiarity with the material that your brain mistakes for knowing it. Then the exam asks you to retrieve the information with no notes in front of you, which is a completely different skill you never practised.
The fix is to make your revision look like the exam: retrieving, applying, under time pressure. Everything below is built around that.
Step 1: Plan backwards from the exam date
Get the syllabus or topic list and mark each topic by two things: how heavily it's weighted, and how confident you are. Your priority is the overlap of heavily weighted and not confident — that's where points are easiest to win.
Then plan backwards. A workable shape for a major exam:
- Weeks out: learn/relearn weak topics until you understand them (understanding first — you can't memorise what you don't follow).
- Middle stretch: active recall on everything, spaced and rotating.
- Final week: past papers under timed conditions, then targeted patching of whatever they expose.
Start about three to four weeks out if you can. Spacing the same hours over more days is one of the most reliable ways to remember more for the same effort.
Step 2: Use active recall, not re-reading
This is the single highest-return change you can make. For each topic:
- Close your notes.
- Write down everything you can remember — on a blank page, or by answering questions you made earlier.
- Then check against your notes and fix what you missed.
The struggle to retrieve is exactly what builds durable memory. Flashcards (especially with a spaced-repetition app), the "blank page" method, and practice questions all work. Re-reading does not. We cover the science behind this in how to accelerate your learning.
Step 3: Space your practice
Don't study a topic once and tick it off. Revisit it a day later, then a few days later, then a week later. Each time you retrieve it after almost forgetting, the memory gets stronger and lasts longer. Practically: rotate topics across days instead of "Monday = all of biology". The same total time, spread out, can roughly double what you retain.
Step 4: Do past papers — properly
Past papers are the closest thing to seeing the exam in advance. They tell you the format, the phrasing, how marks are awarded, and exactly what you still don't know. To get the value:
- Do them under timed, no-notes conditions — the stress and pacing are part of the practice.
- Mark them honestly against the scheme, and read why marks are given, not just whether you got the answer.
- Treat every miss as a to-do: go relearn that specific thing, then re-test it.
A few properly-marked past papers in the final week are worth more than weeks of passive review.
Step 5: Manage focus and energy, not just time
A revision plan only works if you can actually sit and do it. Use short, intense blocks (25–50 minutes) with the phone out of reach, then a real break. If focus is the thing breaking your plan, fix that directly — see how to focus while studying. And protect sleep: it's when your brain consolidates everything you studied. A rested student on a spaced plan beats a tired one full of crammed facts every time.
If you're revising something you never understood
Revision assumes you understand the material and just need to remember and practise it. If a topic genuinely doesn't make sense, re-reading it ten times won't help — you need to learn it, not revise it. Go back to the earliest point it stopped clicking, or get a tutor to pinpoint the exact gap. When an exam is close, one or two focused sessions on the real blocker often unlocks weeks of stuck material — that's where one-to-one help earns its cost (more on that in is tutoring worth it). You can find a tutor for the specific subject and exam you're sitting.
The night before and the exam itself
Don't learn anything new. Do a light active-recall pass of your weakest few topics, prepare everything you need, and sleep properly. In the exam: read the whole paper first, spend marks-per-minute wisely, start with questions you can answer to build momentum, and if you blank, move on and come back — the answer often surfaces once the pressure drops.
Studied well, an exam is mostly retrieval of things you've already practised retrieving. That's the whole goal of a good revision plan.
FAQ
What is the best way to study for an exam? Test yourself instead of re-reading. Combine active recall (retrieving from memory), spaced practice (spreading sessions across days), and past papers under timed conditions. Re-reading and highlighting feel productive but build little durable memory. Plan backwards from the exam date and prioritise the heaviest, weakest topics.
How far in advance should I start revising? For a major exam, start three to four weeks out so you can space your practice and still fit in past papers. Spreading the same total hours across more days produces far better retention than cramming. If you've left it late, do past papers on the highest-weighted topics first.
Does cramming the night before work? It can scrape a short-term pass for pure facts, but it forgets fast, fails on anything needing understanding, and wrecks the sleep that consolidates memory. A rested brain on a spaced plan beats a tired one full of last-minute facts. If you must cram, review actively and still sleep.
How do I revise when I don't even understand the material? Revision assumes you already understand and just need to practise. If the concepts don't make sense, re-reading won't fix it — you need to learn it. Go back to the earliest point it stopped making sense, or get a tutor to diagnose the exact gap; a session or two on the real blocker often unlocks weeks of stuck material.