有效的教学总是在关注了学生已有经验的基础上进行的。本文从案例出发,发现教师对学生的已有经验不够重视;然后进行深度思考,认为关注学生的已有经验,能促进课堂的有效教学;最后采取一些措施,教师在教学时不仅要关注教材信息,更要关注学生的已有经验。 Effective teaching is always based on the student’s experience. In this paper, starting from the case, we find that teachers do not pay enough attention to the existing experience of students. After that, they think deeply that the students’ attention to the existing experience can promote the effective teaching in the classroom. Finally, some measures should be taken when teachers not only pay attention to the teaching materials , But also pay attention to the students’ existing experience.