Active recall is the single most effective study technique for IGCSE Physics. It means retrieving information from memory without looking at your notes. Research consistently shows it produces 50 to 100% better retention than re-reading.
Why re-reading does not work
When you re-read your notes, you recognise the information (“Oh yes, I remember this”). This feels like learning, but it is not. Recognition is easy; recall under exam conditions is hard. The only way to train recall is to practise recalling.
Technique 1: The brain dump
- Close your notes.
- Set a timer for 5 minutes.
- Write down everything you know about a topic (e.g. “electricity: series circuits”).
- Open your notes and compare.
- Highlight what you missed. Those items go into your next study session.
This takes 10 minutes and is one of the most efficient revision methods available.
Technique 2: Self-testing with questions
After studying a topic, immediately test yourself with questions:
- Write the 3 key equations from memory.
- Define the 4 key terms from memory.
- Solve 2 calculation questions without looking at worked examples.
- Explain the key concept to an imaginary student.
Check your answers against the textbook or mark scheme.
Technique 3: The Feynman technique
Named after the physicist Richard Feynman:
- Choose a concept (e.g. “electromagnetic induction”).
- Explain it in simple language, as if teaching a younger student.
- When you get stuck or use vague language, go back to your notes.
- Simplify again until you can explain the entire concept without notes.
If you cannot explain it simply, you do not understand it. This technique exposes gaps that re-reading hides.
Technique 4: Past paper questions
The ultimate active recall: attempt exam questions under timed conditions. This combines recall, application and exam technique.
Rules:
- No notes during the attempt.
- Time yourself (1 minute per mark).
- Self-mark using the mark scheme.
- Log every error in your error log.
How to schedule active recall
Every study session should include recall practice. A simple structure:
| Time | Activity |
|---|---|
| 0 to 10 min | Brain dump on the topic |
| 10 to 30 min | Study the gaps identified in the brain dump |
| 30 to 45 min | Attempt practice questions (no notes) |
| 45 to 50 min | Self-mark and log errors |
Common excuses (and why they do not hold)
“I need to read my notes first.” You will always feel like you need to read more. Start with recall even if it feels uncomfortable. The discomfort is the learning happening.
“I get everything wrong.” Good. That means you are identifying real gaps. Getting everything right on a practice test means the test was too easy to be useful.
“It takes too long.” Active recall is actually faster than re-reading because it produces more learning per minute. 30 minutes of active recall beats 2 hours of passive reading.
Apply this study skill next
Need a Plan Based on Actual Work?
A private taught trial can help distinguish whether the repeated difficulty is mainly Physics knowledge, Mathematics, practical reasoning or exam technique before regular lessons are discussed.