课堂教学是一门艺术,是一种教师与学生共同参与的复杂性活动。在新课改的实践活动中,很多数学教师都在关注课堂教学的有效性。课改专家、华东师范大学崔允郭博士说:“教学有没有效率,并不是看教师有没有教完内容或教得认真不认真,而要看学 Classroom teaching is an art, a complex activity where teachers and students participate together. In the practice of new curriculum reform, many mathematics teachers are concerned about the effectiveness of classroom teaching. Curriculum experts, East China Normal University, Dr. Cui Yunguo said: ”Teaching is not efficient, not to see if teachers have not taught the content or teach serious not serious, but to learn