Finish your homework carefully. Many students pin their hopes of improving their math scores on doing a lot of problems, which is inappropriate. The important thing is not to do more questions, but to do them well and efficiently. We need to do some exercises on the basis of accurately mastering the basic knowledge and methods. In addition, we should pay attention to the efficiency of doing the problem, that is, how much we have gained after doing it. This requires some "reflection" on the basic knowledge used in this problem after doing it.