Mathematics learning lies in diligence and unremitting pursuit, but also in learning methods: 1. Refine the knowledge points of the textbook (concept, image, nature, formula, conclusion, methods and steps to solve some problems, such as the scope of evaluation: image method, proof monotonicity of definition, etc. ) and form their own knowledge structure diagram (knowledge network). When you see a problem, you must understand that the knowledge points in this exam are easily mistaken and confused with the problem-solving methods and points for attention. If you can compare, contrast and transfer the solutions of the problems you have practiced, that is the potential of a master.