1, before establishing contact, teachers should create realistic scenes with mathematical problems that students are familiar with or personally experienced, so that students can understand the actual background of the problems, collect and process all kinds of information, put forward mathematical problems, and prepare for the establishment of mathematical models.

2. Establish a model through observation, comparison, analysis, abstraction and generalization, observe, compare, analyze, abstract and generalize actual mathematical problems or realistic scenarios according to the characteristics of modeling objects and the purpose of modeling, make necessary and reasonable assumptions, and express mathematical concepts in formal mathematical language or describe a mathematical structure with mathematical symbols.

3. Applying models, the purpose of establishing mathematical models is to better describe natural phenomena and social phenomena, so as to help people better understand and transform nature and society. By establishing mathematical models, students can be taught some mathematical thinking methods and lay a solid foundation for further study and future social practice.