Interleaving

Once you have a basic understanding of what you are trying to learn, practice jumping back and forth between problems that require different techniques. This will solidify your understanding of the concepts by learning how to choose to apply them in various situations. 

It's a strategy of mixing up the type of problems you solve when you're testing yourself.

That way, the testing conditions are more similar to real life, where you first have to figure out what kind of problem you have on your hands and then solve it. 

This involves mixing different approaches, concepts, and viewpoints into your learning. It helps you solidify your understanding and promotes creativity and flexibility.

Why it works: While it feels more difficult, if you spread out your study over a period of time, you can...