The Feynman Technique: A Method for Learning Concepts

The Feynman technique is a learning method used by Nobel Prize-winning physicist Richard Feynman, aiming for genuine understanding by explaining complex ideas simply.
By explaining as if to a young child in simple language, you identify gaps in your knowledge and reach deeper understanding.

The Four Steps of the Feynman Technique

1. Choose a topic:

Select a concept or subject you want to learn.
For example, suppose you want to learn about photosynthesis.

2. Explain it:

Explain using easy terms as if to an elementary-school student. Avoid jargon and complicated concepts as far as possible and convey the essentials concisely.
Use an analogy, for example: “Photosynthesis is how plants make nutrients from sunlight, water, and carbon dioxide—like a chef preparing food!”

3. Fill the gaps:

If part is difficult to explain, study materials such as online lectures, teachers, books, or the internet to understand it.
If you could not explain chlorophyll's role properly, find references and study its function and importance in detail.

4. Simplify and organize:

Reorganize the explanation based on your understanding and make it easier and more concise. Analogies and examples are effective.
For example: “Chlorophyll helps plants absorb sunlight. It works like an antenna collecting sunlight!”

An Example of the Feynman Technique

Step 1: Choose a topic:

“Gravity”

Explain:

“Gravity is a force pulling things toward each other. We stand on the ground because Earth pulls us, and a ball thrown upward falls back down because of gravity.”

Fill the gaps:

Because you could not explain the relation between gravity's strength and mass, study Newton's universal gravitation law to understand changes with mass and distance.

Simplify and organize:

“Heavier objects have stronger gravity. Earth is much heavier than us, so it pulls us strongly. Gravity weakens as objects become farther apart. That is why astronauts can float in space.”

Characteristics and Advantages

The technique applies to science, history, philosophy, and other fields. Rather than merely reading and memorizing, you learn actively by explaining and understanding. Simple-language explanation exposes knowledge gaps; filling them deepens understanding. This helps study fundamental concepts more than conventional methods. Material learned and organized this way also stays in memory longer and supports review.

Although Feynman did not specialize in education, he is considered one of the greatest scientists in American history. (Apparently he was also very interested in teaching.) I plan to try this when studying concepts!