The first round of review suggests taking more notes and making a detailed knowledge system tree according to units or knowledge plates. In this way, you can intuitively know what you have learned, and you can concentrate on five or six books for the next two rounds of review. This program takes a lot of time, but it works well and saves time later. When the knowledge system tree is completed, the memory of basic knowledge points is basically guaranteed. It can be used in all subjects. Mathematics, liberal arts mathematics is very simple, a knowledge system tree is written in one or two pages, and then the formula is sorted out to understand its basic application and common changes. Then you can begin to practice doing the problem, make a set of wrong problems, and analyze the reasons for your mistakes, because the formula is not memorized well, you don't know how to change it, or this problem is different from what you have seen before. The first round of questions and suggestions focused on the basic points, and the number was small, but it involved a wide range. If the accuracy is high, it will be deepened.

There are many knowledge system trees of history. It is suggested that the system tree should take the unit or dynasty as the unit, and foreign history should take the country as the unit. For example, in the Tang Dynasty, the chronological order is Tang Yuan, Li Shimin, Wu Zetian and Li Longji. What happened under their rule, how long it lasted, who participated in it, historical influence and so on, and 90% of the knowledge points are available, and some scattered ones are added. With the help of teaching, the three-year simulation of the five-year college entrance examination is very good, which has both real simulation questions and the synthesis of knowledge plates.