Learn by teaching: the Feynman technique for students
If you can't explain it simply, you don't understand it well enough yet. The Feynman technique turns that idea into four simple steps you can do in 20 minutes.
The method is named after the physicist Richard Feynman, who was known for explaining hard ideas in plain language. The core idea is simple: teaching shows you exactly what you don't know.
When you only read, your brain fills gaps quietly. When you explain out loud, the gaps become obvious, because you get stuck at the exact spot you didn't understand.
How to do it
- Pick one topic and write its name at the top of a page.
- Explain it in simple words, as if to a student two classes below you. No jargon you can't explain.
- Find where you got stuck. Go back to the book only for those parts.
- Simplify and use an example. Explain again, shorter, with one everyday example or a small diagram.
Make it stronger with a real listener
- A friend asks "why?" at the places you would skip on your own.
- Take turns: you explain one part, they explain the next.
- Record nothing, just talk. The goal is to think, not to perform.
- End by asking the listener to explain it back in one line.
How Samjhao helps
- Voice rooms built for taking turns to explain, with a turn timer and a pinned question.
- Board to show your notebook or a diagram and point at it while you speak.
- Kudos: listeners can tap 💡 "Clear" when your explanation helped.
Questions students ask
What is the Feynman technique?
A way to learn by explaining a topic in simple words, finding the parts where you get stuck, studying those parts again, and explaining it more simply.
Does the Feynman technique work for maths and physics?
Yes. Explain why each step is done, not just what is done. If you can't say why, that is the gap.
Do I need someone to listen?
No, you can explain to an empty room or a notebook. A real listener helps more because they ask questions you would skip.
How long does it take?
About 15–20 minutes for one topic. Short and focused works better than long sessions.
Is teaching friends a waste of my time before exams?
Usually the opposite. Explaining is one of the best ways to revise, as long as you also get your turn to listen and ask.
Updated: 2026-10-19