The proportion of easy questions, intermediate questions and difficult questions in college entrance examination mathematics problems is 3:5:2, that is, basic questions account for 80% and difficult questions account for 20%.

Whether in the first, second or third round of review, the "three basics", that is, basic knowledge, basic skills and basic thinking methods, are the most important. It is dangerous to hold on to some difficult problems! Only when the "three basics" pass, can we have the ability to do difficult problems.

Second, the construction of knowledge network.

The essence of mathematics teaching is to put a large number of declarative knowledge such as mathematical concepts, theorems and formulas into practice in the teaching of mathematical knowledge, so that students can form an increasingly hierarchical mathematical knowledge network structure on the basis of active participation and construction, so that students can experience the mathematical ideas and methods contained in the whole learning process and form a way to solve problems. Therefore, on the basis of consolidating the basic knowledge, we should grasp the vertical and horizontal links and build a knowledge network in the review of college entrance examination. After strengthening the connection of each knowledge block, grasp the main knowledge and clarify the framework.

Third, pay attention to the general method.

In recent years, college entrance examination questions have focused on the examination of general methods, thus avoiding questions that are too dead, too complicated and too biased. The thinking of solving problems does not depend on special skills, and there are many ways to solve problems, flexible methods and divergent thinking. Don't "play skills" too much in review. Excessive use of skills will make students with good grades "possessed" and students with poor grades "lose confidence".