教学是教师的教和学生的学所组成的人类特有的人才培养活动。所有的课堂教学都要回答一个问题:教教材还是教学生?课堂教学是在教材、教师、学生三者张力下按其内在逻辑发展的动力系统,这引出了我们对课堂师生交往的思考。一再增加物理量也无法实现教学质量提高的时候,大家都在思考问题到底出在哪里。笔者认为有一种原因,教师普遍关注自己教的内容,而不太关注教学的对象, Teaching is the teaching of the teacher and student learning composed of human-specific training activities. All classroom teaching should answer the question: Teaching materials or teaching students? Classroom teaching is a dynamic system that develops according to its internal logic under the tension of teaching materials, teachers and students, which leads us to think about the interaction between teachers and students in the classroom. Repeatedly increase the physical quantity can not be achieved when the teaching quality improvement, everyone is thinking about the problem in the end where. I think there is a reason, teachers generally concerned about what they teach, and not too concerned about the teaching of the object,