Don't change the teaching mode of the school again. In that case, they will learn well in school, and giving them another way of learning will have unexpected effects.

First of all, know what they don't know. This is your point.

Look for problems from problems. If you ask him what he can't do, he won't say. Doing questions is the best way to detect.

Find out the problem and tell him how to do it. It must be yours. Tell him your thoughts and process, and then find out the corresponding knowledge points in the book. This not only taught him how to do the problem, but also taught him how to study.

After that, I will review the content before the exam, preferably two days later, when he will forget some of it. In this case, he will try his best to think about the previous thinking, and when he makes it, he will be more impressed and will be his own; If he can't do it, tell him to learn to review by himself. People are forgetful.