Study guide
How to study effectively
Seven techniques backed by learning science — and how to start using them tonight.
The short answer
The two that matter most: test yourself instead of re-reading, and spread reviews out over days instead of cramming. Add mixing topics, explaining in your own words, focused blocks, sleep, and practising the exam format — and you've outperformed almost any other approach.
1. Active recall (test yourself instead of re-reading)
Reading notes over feels productive but barely builds memory. Pulling information out of your head does. Close the book and write down everything you remember, then check. Every retrieval strengthens the memory far more than another passive read. This is the single best-studied technique in learning science.
Learn more about the testing effect.
2. Spaced repetition (spread it out)
A little today, a little in two days, a little in a week beats one long session. Each review just as you're about to forget resets the memory and makes it last longer. Review too soon and you waste time; too late and you relearn. The ideal gap grows each time you get it right.
Learn more about the forgetting curve.
3. Interleaving (mix the topics)
Studying one topic until it's easy, then the next, feels clean — but mixing related topics in one session teaches you to tell them apart and choose the right method, which is what an exam asks. Mix problem types, not just subjects.
Learn more about interleaved practice.
4. Elaboration (explain it in your own words)
Ask 'why?' and 'how?' until you can explain the idea in plain words without the textbook. The Feynman trick: write the explanation as if teaching someone new. Wherever you get stuck or start using jargon to hide the gap, that's exactly what to study next.
Learn more about elaboration in learning.
5. Work in focused blocks
About 25–45 minutes of single-task focus, then a short break, holds attention better than hours of half-present studying. Put the phone in another room, not just face-down. Attention is the resource you're actually spending, so protect it like you'd protect time.
Learn more about the Pomodoro Technique.
6. Sleep after learning
Memory is consolidated during sleep, especially the night after studying. Cramming through the night costs you the very stage where the day's learning gets stored. Even a short nap after a session helps. This is not a soft suggestion; it's part of the process.
Learn more about sleep and memory.
7. Practise the way you'll be tested
If the exam is written answers, write answers. If it's multiple choice, do timed questions. Recall under exam-like conditions — no notes, against the clock — is the closest rehearsal you can get. It also exposes the gaps re-reviewing hides.
Learn more about transfer-appropriate practice.
A simple way to start tonight
- Pick one topic and write down everything you remember without notes (active recall).
- Mark what you missed, review just that, then test again tomorrow (spaced repetition).
- Mix in a second related topic the day after (interleaving).
- End each block by explaining the idea out loud in plain words (elaboration).
More on building a full revision plan in study techniques for exams.
Put this into practice tonight
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