Active recall: the study technique that beats rereading
TutorAura guide · Updated
Active recall means pulling information out of your memory, by answering questions, explaining from memory or writing down everything you know, instead of putting it in again by rereading. It's one of the best-supported study techniques in cognitive psychology: a major review rated practice testing as one of only two techniques with high usefulness for students (Dunlosky et al., 2013).
It feels harder than rereading, and that's the point. The effort of retrieving makes the memory stronger and easier to retrieve next time.
Key takeaways
- Retrieving information strengthens memory more than reviewing it.
- Rereading feels effective because material looks familiar, but familiarity isn't recall.
- Use flashcards, blank-page recall, practice questions or explaining aloud.
- Check your answers, and space your recall sessions over days.
What the research shows
In a well-known study, students read short prose passages. Some then restudied them several times; others studied once and then took recall tests without feedback. Five minutes later, the restudy group remembered slightly more. One week later, the testing group remembered substantially more, even though the restudy group had predicted they would do better (Roediger and Karpicke, 2006).
A meta-analysis of hundreds of comparisons across classrooms and labs found the same pattern: practice testing improves learning compared with restudying, across ages and subjects (Adesope et al., 2017).
Five ways to use active recall
| Method | How it works | Good for |
|---|---|---|
| Flashcards | Question on one side, answer on the other; say the answer before flipping | Vocabulary, definitions, dates, formulas |
| Blank page | Write everything you remember about a topic, then check your notes | Topics with connected ideas |
| Practice questions | Answer exam-style questions without notes, then mark them | Maths, sciences, any exam |
| Explain it aloud | Teach the idea to someone else or an imaginary student | Understanding processes and concepts |
| Question your notes | Turn headings into questions and answer them from memory | Revising from class notes |
Any method works as long as you're producing the answer, not recognising it.
Example: a biology topic
Instead of rereading your notes on photosynthesis:
- On a blank page, write the word equation and everything you know about where and why it happens.
- Check your notes and add what you missed, in a different colour.
- Turn the gaps into questions: "What limits the rate of photosynthesis?"
- Two days later, answer those questions from memory.
The different colour shows you exactly what to focus on next time.
Make it work: four rules
- Check your answers. Recall without feedback can let mistakes stick. Correct them straight away.
- Struggle a little before looking. Give yourself time to retrieve. The harder you work to recall, the more it helps.
- Space it out. Recall the same material again after a day, then after several days. See spaced repetition.
- Mix topics. Answer questions from different topics in one session so you practise choosing what to use. See interleaved practice.
Common mistakes
- Peeking too soon. Glancing at the answer turns recall back into recognition.
- Only testing what you know. Aim your questions at weak areas.
- Making flashcards instead of using them. Making cards can become a time sink; the learning happens when you test yourself with them.
- Stopping after one correct answer. Get it right on a later day too before you drop it.
Using an AI tutor for active recall
An AI tutor can quiz you on any topic, ask follow-up questions when your answer is incomplete, and come back to the questions you got wrong in a later session. With TutorAura, ask for a quick quiz on today's lesson or a topic you're revising, and it keeps notes on what you found hard so it can revisit those ideas. For whole tests, see how to use practice tests.
Frequently asked questions
What is active recall?
Studying by retrieving information from memory, for example by answering questions or writing what you remember, instead of rereading or highlighting.
Is active recall better than rereading?
Yes. Research consistently finds that testing yourself leads to better long-term memory than rereading the same material.
How often should I use active recall?
Make it the main part of most study sessions, and repeat recall on the same material over several days.
Does active recall work for maths?
Yes. For maths, active recall mostly means doing practice questions without looking at worked examples first.
Sources
- Improving Students' Learning With Effective Learning Techniques. Psychological Science in the Public Interest (Dunlosky et al.), 2013.
- Test-Enhanced Learning: Taking Memory Tests Improves Long-Term Retention. Psychological Science (Roediger and Karpicke), 2006.
- Rethinking the Use of Tests: A Meta-Analysis of Practice Testing. Review of Educational Research (Adesope, Trevisan and Sundararajan), 2017.
Keep reading
Spaced repetition: how to remember more by studying less at once
Why spreading study over time beats cramming, and a simple schedule you can start today.
How to study for a test: methods that actually work
Test yourself, spread it out and mix topics: a research-backed method with a 7-day plan and a one-day emergency plan.
How to use practice tests effectively (and why they work)
Why testing yourself works, when to take practice tests, how to review them and how often.
Interleaved practice: why mixing topics helps you learn
Mixing problem types in practice helps you learn to choose the right method. Here's how to use it.