《数学课程标准》指出“数学教学是数学活动的教学,是师生之间、学生之间交往互动与共同发展的过程。”由此可以看出,互动是课堂教学中客观有效的交往,是实施新课程理念的基础。师生互动的课堂不仅能调动学生参与课堂的积极性,还能提高学生善于思考的深度、广度,更重要的是能通过课堂教学使学生 The “Mathematics Curriculum Standards” pointed out that “math teaching is the teaching of mathematics activities and is the process of interaction and mutual development between teachers and students and between students.” From this, we can see that interaction is objective and effective communication in classroom teaching. The basis for the implementation of the new curriculum concept. The teacher-student interactive classroom not only mobilizes the enthusiasm of students to participate in the classroom, but also enhances students’ depth and breadth of good thinking. More importantly, students can use the classroom teaching to make students