The Feynman Technique, Step by Step

The method is named after the physicist Richard Feynman, who was known for explaining hard ideas in everyday words. He never wrote it down as a formal four-step technique; the version students use today is a summary of how he approached learning. What makes it work is simple: you can't fake a plain-language explanation. Rereading a page feels like understanding, but trying to explain it out loud shows you exactly which sentence you were nodding along to without really following.

The four steps

1. Pick one concept and write its name at the top of a blank page. Keep it narrow: "how a neuron fires," not "the nervous system."
2. Explain it in plain words, as if to a younger student. Write or say it without looking at your notes. Use short sentences and an example.
3. Mark every spot where you got stuck, went vague ("and then it sort of..."), or reached for a term you couldn't define. Those spots are the actual study list.
4. Go back to your source for just those spots, then explain the whole concept again from the top. Repeat until you can get through it without a gap.

An example

Say you're explaining supply and demand. "When something gets more expensive, people buy less of it, and sellers want to sell more" is a good start. Then you try to explain why price ends up where it does and catch yourself saying "the market balances out." That phrase is the gap. Going back to your notes, you find the actual mechanism: at a price above equilibrium there's a surplus, so sellers cut prices; below it there's a shortage, so prices rise. Your second explanation includes that, and now you could answer a question about it on a test instead of just recognizing the term.

Mistakes that make it stop working

• Explaining with your notes open. Then you're reading, not explaining, and the gaps stay hidden.
• Picking a topic that's too big. If the explanation takes more than a few minutes, split it.
• Keeping the jargon. If you use a term, you have to be able to explain that term too, or swap it for plain words.
• Skipping the second pass. Finding the gap is only half of it; the re-explanation is where it sticks.

Using it with Studi

Studi works best for the two parts of the technique that take the most time: getting a clean version of the source to check yourself against, and having someone to explain to. Upload your lecture slides or a PDF and turn it into notes organized by topic, so when you hit a gap you're checking one short section instead of a whole chapter. Then explain the concept to Ollie Chat in your own words and ask it what you missed or got wrong; it answers from your uploaded material. After that, practice questions on the same material show whether the explanation holds up on new questions.

The Feynman Technique is about understanding. To keep that understanding until the exam, pair it with active recall and spaced repetition.