Now find out what his math level is like (such as poor basic knowledge or poor advanced questions). If the basic knowledge is not good, you can classify him and find examples to do (such as algebraic simplification, geometric drawing, geometric proof). If this is not good, you can explain the theorem in the textbook to him and talk about special laws. For example, a point on the bottom of an isosceles triangle is equal to the height of a waist. For example, parents can't ask their children to ask their teachers for examples and encourage them to ask questions bravely. When they get home, let them tell their parents that they can explain. Choose 3~2 typical examples for each example. The college entrance examination is to let children do some simple Olympic math questions (the additional questions in the senior high school entrance examination are not difficult, usually simple Olympic math questions such as moving points and moving surfaces) and the additional questions in previous years' exams (in line with his grade), that is, 24 questions are so many. It's all experience Please give me some points for my hard work! Finally, may that child break the math barrier and be regarded as the little prince of mathematics!