The plane Cartesian coordinate system embodies the close relationship between the plane Cartesian coordinate system and the real world, which makes students realize the close relationship between mathematics and human life and its role in the development of human history, and also improves their enthusiasm and curiosity in mathematics learning activities. Therefore, we must first determine the teaching objectives, teaching emphases and difficulties of this class, and create vivid and intuitive problem situations close to their lives in the teaching process. In this lesson, I use the common sense of traveling to Yinchuan, Ningxia to introduce the theme, so that students can find the specific location of Shizuishan on the map of Ningxia administrative region. Naturally, it has aroused students' great concern and interest, and consciously investing in learning will help students understand the content in a deeper level; On the other hand, students already have a certain learning ability. Let them talk and draw a picture in class, create as many opportunities as possible for students to learn independently and cooperate and exchange, make students become the main body of learning, and encourage students to actively participate and explore.

This lesson is designed with a summary, so that students can sum up the gains and puzzles of this lesson, not only summing up the knowledge points, but also paying attention to the infiltration of mathematical thinking methods in the classroom. It broadens students' knowledge and cultivates their divergent thinking ability and innovative ability.

This course adopts the teaching process of "creating situations-asking questions-solving problems-applying and expanding". This course not only enables students to acquire knowledge from books, but also shows the process of knowledge formation and understanding, as well as the relationship between various kinds of knowledge, helping students to form a knowledge system, improve the cognitive structure and expand the application of knowledge. This kind of teaching not only enables students to understand the learning content, but also enables students to master the learning methods and better use what they have learned to solve problems.