不管时代怎么变迁,教师“传道、授业、解惑”的职责也是不容改变的。而随着历史的发展和社会的变革,知识本身却在不断地进行扩张与拓展。因此,我们的课堂教学对于小学教材上规定的数学知识有必要进行教学拓展。课堂教学知识的拓展和融合是一节课的点睛之笔,可以激发学生的学习兴趣,培养学生的逻辑思维能力和创新能力,延伸学生的视线。记得刚开始走上讲台时,由于自己的教学经验不足,有时对教材的重难点把握得都不够到位,感觉自己的教学效果也不尽 No matter how the times change, teachers “preaching, teaching, doubts ” responsibility is immutable. With the development of history and social change, knowledge itself is constantly expanding and expanding. Therefore, our classroom teaching is necessary for the teaching of mathematics prescribed in primary school textbooks. The expansion and integration of classroom teaching knowledge is the crowning touch of a lesson, which can stimulate students ’interest in learning, cultivate their logical thinking ability and innovative ability, and extend the students’ eyesight. I remember when I first started to take the podium, due to my lack of teaching experience, sometimes difficult to grasp the material difficulties are not enough place, I feel their teaching results are not endless