Highlights: The introduction design of the course adopts situational introduction, which is very bright and memorable. Introducing students' thinking into the theme of this lesson is concise and quick, which makes people shine. In addition, group discussion and cooperative inquiry will quickly enliven the classroom atmosphere and stimulate learning interest, which is worth learning.

Disadvantages: unreasonable time allocation for key and difficult issues. Emphasis should be placed on the course explanation. For open questions, students' discussion time can be shortened, and time should be focused on understanding the important and difficult points of the course. The time of cooperative inquiry can be extended to the discussion of key issues, so that students can deepen their understanding of the issues through independent discussion and thinking.