However, there are some ways to make progress slowly. After all, you can't eat a fat man in one bite. Everything should be done step by step. We shouldn't encourage others or rush for success.
First of all, we must understand the textbook. Many times, the formulas and knowledge spoken by teachers are the most basic in textbooks. If you don't understand, you should thoroughly understand the textbook and understand every exercise above.
Secondly, children generally have a good memory, and some mathematical principles have to be memorized before they will gradually understand.
Finally, some questions or contents that you really don't understand can be consulted by teachers or experts, and it is also possible to ask a tutor for your children. It is important to understand the knowledge points thoroughly through channels, otherwise it will accumulate and backfire.
Update 1: I really can't stand it.
Problems with the existing system
Update 2: I don't have a satisfactory answer, but first, I don't w