First of all, we should recall the knowledge points the teacher said before doing various exercises, and correctly master the reasoning process of various formulas. If we are not clear, we should try our best to recall them instead of turning to the book immediately. Finish your homework independently and be diligent in thinking. For some problems that are difficult to solve for a while because of their unclear thinking, let yourself calm down, analyze the problems carefully and find ways to solve them by yourself.
At every learning stage, we should sort out and summarize, and combine the points, lines and surfaces of knowledge into a knowledge network and bring it into our own knowledge system.