随着课程改革的不断深入,师生互动、合作交流越来越受到广大教师的重视。这就要求教师改变传统的数学教学模式,要从教学时间的支配者向课堂学习活动的组织者、引导者和合作者的角色转换,这对我们来说是一种挑战。数学课堂是以学科知识为载体,在师生、生生之间的相互活动中,在学生经历和知识形成的过程中,获得知识、技能、情感、态度、价值观的体验, With the continuous deepening of curriculum reform, teacher-student interaction, cooperation and exchange are increasingly valued by teachers. This requires teachers to change the traditional mathematics teaching model, from the dictator of teaching time to the role of organizers, guides and collaborators of classroom learning activities, which is a challenge for us. The mathematics class is based on subject knowledge as a carrier, and in the mutual activities between teachers and students, students and students, experience of knowledge, skills, emotions, attitudes and values ​​in the process of student experience and knowledge formation.