The second is to pay attention to the depth of learning and not blindly pursue progress. When learning new content, we should carefully analyze it. The more difficult it is to understand, the more we should try to understand it. In order to ensure the quality of study, it's okay to read slowly.
Third, we should attach importance to basic knowledge and basic concepts, step by step. A solid foundation makes it easier to study in depth.
Fourth, pay attention to the coherence of knowledge before and after. The contents of each branch of mathematics are not isolated. Paying attention to finding out their internal relations and combining with each other can deepen understanding and memory and make it a complete system.
In fact, the most important thing in learning mathematics is understanding.