动手操作是小学数学课堂教学中一种重要的教学活动形式。但是,教学实践告诉我们,强加给学生的操作话动是徒劳的,学生自发的操作活动才是有效的,而有效的操作活动必须建立在适宜的操作时机基础之上。下面就从本人实验数学的实践出发,简单总结一下如何把握好学生动手操作的时机问题,谈一点自己的认识和做法。一、课前操作——激发学习新知的兴趣兴趣是打开成功之门的钥匙,是创造的非智力源泉。有了兴趣可以变苦学为乐学,变厌学为愿学,变被迫、 Hands-on operation is an important form of teaching activities in primary mathematics classroom teaching. However, the teaching practice tells us that it is futile to impose on the students’ operations, that the spontaneous activities of the students are effective, and that the effective operations must be based on the proper operation timing. The following from my own practice in experimental mathematics, a brief summary of how to grasp the timing of student hands-on operation, talk about their own understanding and practices. First, the pre-class operation - to stimulate interest in learning new knowledge is the key to open the door to success, is to create non-intellectual source. With interest can become bitter learning for music, change tired of learning to learn, change forced,