1. Investigate some phenomena in life, make statistical tables and charts, and analyze data (calculate the fraction of a whole, how do you feel, etc. )

2. Find a few mathematical problems that can be solved from life, write small papers after solving them, and propose solutions (not too many, 1~2 articles is enough).

3. Understand the mathematical problems you are interested in: (such as Sue's dog, Pythagorean theorem, etc. ) and know a little (of course, this is optional).

Individuals ask students to do this.