2. The evaluation of students' thinking ability adopts qualitative evaluation method. According to the process of students' self-evaluation and problem-solving (or revision) practice, students' thinking ability and learning process are evaluated. In the lower right corner of "Zheng", use "△" and "∞" to show the flexibility and innovation of students' problem-solving thinking. "△" means that the thinking is innovative, but not completely right, or the expression is correct, but not simple. "∞" means unique and creative thinking method.
3. Qualitative evaluation method is also used to evaluate students' learning attitude. Use "ˇ" and "'in the upper right corner of" Zheng "to reflect students' learning attitude and interest. "ˇ" means that the writing format of the homework basically meets the requirements and is not serious. It means: the work format meets the requirements, the writing is serious, and the page is neat.