First, you must find a teacher to make up for what you can't do first! The next day is not too late! I thought 18 days finished learning the geometry problems in middle school, so you are still far from the day of the senior high school entrance examination. Do not give up. )

Second, it is very important to preview before class. Classes are not for listening to new content, but for solving old problems. Problems accumulated in preview after class, which can't be solved in class, are solved immediately after class, thus avoiding the delay of problems. In this regard, I think you have not done well enough! Junior high school mathematics content is very little, and the accumulated problems must be solved on the same day or even in advance!

Third, it is very important: the sea of people tactics will destroy the mathematical genius! When you study mathematics, you must remember one sentence: The mathematics you study is the thinking of solving problems and the general thinking of solving problems (for example, you should be familiar with the models in geometry: the skills of constructing congruence and translation when there is a midpoint, and the generalized model application of Menelaus theorem and euler theorem theorem). These are things that you should spend time thinking about.

Fourth, use problems to consolidate.

The first realm of doing the problem: lay a solid foundation;

The second realm: summarize practical skills and laws in solving problems (for example, regarding quadratic functions, it is necessary to summarize the relationship between the values of A, B and C and images and the application of Vieta's theorem, which will be very helpful to improve the speed of solving problems);

Here's a digression: |x 1-x2|= under the radical sign {(x 1+x2) 2-x 1 * x2} is useful.

The third realm: challenge the problem (the problem is difficult because it combines a variety of problem-solving skills. The senior high school entrance examination, we generally call it the finale! To be the finale requires you to have a solid foundation and your own three-year summary);

Four realms: Challenge the psychological limit (do contest, Hubei do contest, IMO do contest). This kind of training will give you an absolute psychological advantage in the general exam! If you have strength, your heart will be natural and practical!

That's all!