一、背景介绍众所周知,图的由来是函数图像教学的基础,而平面直角坐标系的引入又成为基础的基础.新课程标准指出,学生对有关的数学内容进行探索、实践和思考的过程就是数学学习的过程.从这个意义上来说,学生应当成为学习活动的主体,教师应成为学习活动的组织者、引导者与合作者.作为教师,首先应考虑如何调动学生学习的主动性和积极性,引导学生学会自主探究、创新,教师在发挥组织、引导作用的同时,又是学生的合作者 I. Background Introduction As we all know, the origin of graphs is the basis of functional image teaching, and the introduction of the plane rectangular coordinate system has become the basis of the foundation. The new curriculum standards point out that the process of exploration, practice and thinking of students in relation to mathematical content is mathematics The process of learning. In this sense, students should become the main body of learning activities. Teachers should become organizers, guides, and collaborators of learning activities. As teachers, teachers should first consider how to motivate students’ initiative and enthusiasm for learning. Students learn to explore and innovate independently, while teachers play a role in organization and guidance, but they are also collaborators of students.