课堂教学的有效性,并不是指教师有没有顺利完成教学任务或教得认真不认真,而是通过一定的教学活动,使学生达到预期的最佳效果。“有效教学”是一种理念,也是一种行动。它需要我们反思“什么样的教学才是有效的?”“我的教学有效吗?”“有没有更有效的教学?”……让我们从每一节课做起,提高课堂教学效益,更好地为学生的数学学习服务。 The effectiveness of classroom teaching, does not mean that teachers have not successfully completed the teaching tasks or teach seriously not serious, but through certain teaching activities to enable students to achieve the desired results. “Effective teaching ” is a concept, but also an action. It requires us to reflect on “What kind of teaching is effective?” “Is my teaching effective?” “Is there any more effective teaching?” "Let’s start with each lesson, Improve the efficiency of classroom teaching and better serve the students’ mathematics learning.