Feynman's technique isn't limited to mathematics or physics. You can apply it to anything.

This step allows you to establish whether you've learned what you studied or you just thought you had.

Explain the concept in your own words as if you were trying to teach it to a child.

When you try to break things down into simple ideas with plainer vocabulary, you'll realize whether or not your knowledge of the subject is sufficient.

This makes it easy to identify any gaps in your knowledge.

Only when you can explain the subject in simple terms will you understand it.

This means the knowledge will stick with you and not disappear, as it can when you try to memorize something.

Review your notes and study material for anything you still don't understand.

Try to explain it to yourself in an easy way. If it's too difficult or if you have to use terms from a textbook, then you still haven't got it.

Don't stop until you can deliver a simple, natural explanation.

Go back to steps two and three as many times as you need.

It probably won't take as long as you think.