The goals of these four dimensions are a closely related organic whole. The development of mathematical thinking, problem solving, emotion and attitude can not be separated from the study of knowledge and skills. At the same time, the learning of knowledge and skills must be based on the realization of other goals. In mathematics learning, knowledge, skills and problem solving are in a progressive relationship, the mastery of knowledge and skills is the basis of problem solving, and mathematical thinking (cognitive strategy) and emotional attitude are accompanied by the realization of the above goals.