The Feynman Technique
The Feynman Technique is a learning method that emphasizes teaching an idea to deepen understanding. It consists of four steps: study, teach, identify gaps, and simplify.
THE IDEA
The Feynman Technique
Hollins presents the “Feynman technique” as a way to test understanding through explanation, inspired by Feynman’s approach to learning and teaching. Trying to explain an idea makes it harder to hide a gap behind familiar terminology.
The method has four steps:
- Study. Choose a concept and work through the relevant material.
- Teach. Explain it in plain language to someone else, or write an explanation for a reader unfamiliar with it.
- Identify gaps. Notice where you rely on jargon, skip a step, or cannot answer a question. Return to the material to resolve those points.
- Simplify. Revise the explanation so its steps are clear. Check that any analogy preserves the part of the idea you are trying to explain.
Repeat as needed. A smooth explanation is useful only if it is accurate, so compare it with the source and invite questions that could expose what you have missed.
When to use it
When studying for an exam, use the technique to break down and master each topic.
When preparing a presentation, apply the method to ensure your message is clear and accessible.
When learning a new skill (e.g., coding, playing an instrument), teach it to yourself or others to reinforce learning.
When troubleshooting a problem, use the technique to deconstruct the issue and identify missing pieces.
FROM THEORY TO EVERYDAY LIFE
In practice
Understanding Newton’s Laws of Motion
A student studies Newton’s laws and tries to explain them to a friend. When asked about the difference between mass and weight, the student cannot give a clear answer. They return to the material, revise the explanation, and check it by answering the friend’s follow-up questions.
Learning a New Language
A language learner applies the technique by teaching vocabulary and grammar rules to a study partner. Realizing they cannot explain verb conjugations without confusion, they review the rules and create a simple chart. The act of teaching solidifies their own understanding.
A MOMENT TO REFLECT
Put it to work.
How can you simplify a complex idea to teach it to someone with no background in the subject?
What gaps in your understanding become apparent when you try to explain a concept out loud?
How does the act of teaching help you identify and fill your own knowledge gaps?
CONTINUE THE CONVERSATION
Source texts
- Richard Feynmans Mental Models by Peter Hollins