Raiders 1: the concept is clear and the foundation is solid. Never ignore the most basic concepts, axioms, theorems and formulas, especially "indefinite multiple-choice questions", and distinguish right from wrong by clear concepts. If the concept is unclear, you will feel ambiguous and eventually make the wrong choice. Therefore, it is necessary to sort out the concepts in the four textbooks that have been learned, and deepen your impression through reading and copying, especially the concepts that are easily confused, so as not to leave hidden dangers.

Raiders 2: Do the right thing and be clever. Some students work hard, and a lot of counseling books have been done but few improvements have been made. This is the misunderstanding of doing the problem. Mathematics needs practice and a lot of questions, but we should "bury our heads in solving problems, raise our heads and think", pay attention to ideas, methods and skills, "work hard" and "be clever" when doing problems. Time is the most precious in exams. Mastering good ideas, methods and skills can not only solve problems quickly, but also make mistakes easily.

Raiders 3: contact before and after, vertical and horizontal. When doing the problem, you should pay attention to finding the internal relationship between the problems, and never "do stupid things". When doing a problem similar to the previous one, we should find the law through comparison, penetrate the essence, and reach the realm of "drawing inferences from others". In particular, the method of adding auxiliary lines to geometry problems is very regular, so you should remember it especially when doing the problems.