The Secret Book of Learning Thinking is a set of teaching materials to help primary school students improve their math scores. The difficulty is equivalent to more than 95 points in the school and the difficulty of cultivating excellent system innovation /S class. It is one of the more difficult counseling materials, and the content involved conforms to the national standards and examination scope, and will not exceed the child's current mastery level. There are still many operational problems that need to be solved by in-depth thinking or by mastering skill combination deformation to increase the challenge.