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The Feynman
Technique
You recognize the words. Can you explain the idea?
Choose one concept, put it into plain language, and find the parts you still need to learn. Leave with a clearer explanation and a specific next study step.
Try the explanation worksheet ↓Free to use and print. No account needed.
The idea
Make the gaps visible.
The Feynman Technique is a study routine built around explaining a topic simply, noticing what is missing, and revisiting it. Kansas State University’s Academic Achievement Center presents a four-step version: study, teach, fill gaps, and simplify. [1]
Here is our practical way to try it. The worksheet and examples below are original exercises, not a checklist written by Feynman.
Choose something small
Pick a question you could answer on one page. “What does an average tell me?” is more workable than “Learn statistics.” Review a reliable source.
Explain it without notes
Write or speak as if helping a beginner. Give one concrete example. Mark any point where you rely on a term you cannot explain.
Check the weak spots
Compare your explanation with the source. Correct errors and unanswered questions. A fluent explanation can still be wrong.
Rewrite and test it
Make the explanation clearer without losing essential detail. Try a fresh example or question that was not in your notes.
A worked example
From a label to an explanation.
Suppose you are learning the arithmetic mean. This example is deliberately small so you can see the revision happen.
“The mean is a measure of central tendency.”
That sentence names a category. It does not tell a beginner how to calculate the mean, or when it might mislead them. Ask: What would I actually do with three numbers?
“Imagine three jars holding 2, 4, and 9 counters. There are 15 counters in total. If we redistribute them equally, each jar gets 5. The mean is that equal-share amount: add the values and divide by how many values there are.”
Now test its limits. None of the original jars held 5 counters. The mean is a summary, not necessarily an observed value. If the last jar held 90 instead of 9, the mean would become 32—even though two jars still held only 2 and 4.
Fresh check: four jars hold 3, 3, 6, and 12 counters. What is their mean? Explain both the calculation and what the result represents.
Check your answer
The total is 24. Dividing by 4 gives a mean of 6 counters per jar. That is the amount each would hold after equal redistribution; it does not mean all four started with 6.
Original illustrative example. The arithmetic mean is only one way to summarize a set of numbers.
Put it to work
Your one-page explanation.
Use these prompts on paper, or print this worksheet. You do not need to enter anything into the website.
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The Feynman Technique worksheet
Success Archives · successarchives.com/feynman-technique/
1. My concept and source
What single question am I trying to answer? Where will I check my work?
2. My first explanation
Explain it in ordinary language and include one example, without looking at your notes.
3. My gaps and corrections
Which terms, steps, or assumptions could I not explain? What did the source correct?
4. My revised explanation and fresh test
Rewrite the weak part. Try a new example. What still needs checking?
My next study action
Name one question to revisit and when you will return to it.
Keep the useful parts
Clarity is a check, not a guarantee.
- Keep necessary technical terms. Define them and show how they work. Removing every precise word can make an explanation less accurate.
- Check against something outside your own confidence. Use a reliable text, a worked solution, or feedback from someone who knows the subject.
- Do the actual practice. Explaining a proof, a language rule, or a physical skill does not replace solving problems, using the language, or practicing the skill.
- Narrow the topic if you stall. A missing prerequisite is a useful discovery. Write it down as your next question.
The historical context
What belongs to Feynman?
In a 1996 Caltech publication, David Goodstein recalled asking Feynman to explain a physics result at freshman level. Feynman later admitted he could not produce that explanation and took this as a sign of incomplete understanding. This is a colleague’s recollection, rather than a four-step learning manual. [2]
Feynman’s own preface to his physics lectures also discusses the difficulties of teaching and the importance of students working through problems. [3] These sources provide context for his approach. They do not establish that he authored the modern named checklist, or that it guarantees faster learning.
Sources & further reading
- Kansas State University: Feynman Technique study handout (PDF) — a contemporary four-step description.
- David and Judith Goodstein: Feynman’s Lost Lecture, Engineering & Science, 1996 (PDF) — see “Feynman: A Reminiscence,” printed page 19.
- Feynman’s preface to The Feynman Lectures on Physics — his account of teaching the course.
Sources reviewed September 16, 2026. The worked example and worksheet are original Success Archives material. Source links are ordinary references; this guide contains no affiliate links.