Active recall vs. rereading: how to remember what you study
Rereading your notes feels like studying. The material looks familiar, so it seems you know it. But recognising something on the page is very different from being able to pull it out of your head in an exam. That's where active recall comes in.
What active recall means
Active recall is testing yourself: closing the book and trying to bring information back from memory. The effort of retrieving it is what strengthens it. It feels harder than rereading, and that difficulty is the point.
Easy ways to practise it
- Blank page. Write everything you remember about a topic, then check your notes and fill the gaps in a different colour.
- Questions, not notes. Turn each heading into a question and answer it without looking.
- Flashcards. Put a question on one side and the answer on the other, and say the answer before flipping.
- Past papers. Answer real exam questions under timed conditions.
- Teach it. Explain a topic aloud to someone else, or to an empty room.
Add spacing
Recall works even better when it's spread out. Test yourself on a topic today, again in a couple of days, then a week later. Each time the gap grows, and each review takes less time than the last.
A simple study session using recall
- Spend 15 minutes learning a section.
- Close everything and write what you remember for 10 minutes.
- Check, correct and note what you missed.
- Finish with five questions on yesterday's topic.
Where rereading still helps
Reading is fine for a first pass, to understand the material. Just don't stop there. Once you have read something, switch to testing yourself on it.