1. learning experience: talk about your learning experience around a lesson, a lesson or a question in the high school mathematics textbook, and reflect your mental journey in the learning process with specific materials.

2. Research results: Based on the knowledge points in textbooks, through analogy, popularization, imagination and other thinking activities, a "new achievement" that "comes from textbooks but is higher than textbooks" is obtained.

3. Mathematical application: To solve practical problems in real life with mastered mathematical knowledge, the article should have realistic background materials, specific data, mathematical model, solving process and actual results.

4. A unique understanding of a question, a unique answer to a test question, and an argument and analysis of some knowledge.