计算教学在小学数学教学中所占的比重相当大,是培养学生基本技能、基本数学活动经验的重要途径。在传统的计算教学中,教师往往采用机械操作式的教学模式,学生忙着做大量的习题,虽然能正确计算但遇到实际问题却不知从何入手。究其原因,主要在于学生只是注重“做”这一方面,而不懂为何这样做。教师要教给学生的不仅仅是简单的数学方法,还应该是数学思想的渗透,是要帮助学生建构数学知识系统,从而学会数学化地思 Computing teaching in primary school mathematics teaching a large proportion, is to develop students basic skills, basic math activities experience an important way. In traditional computing teaching, teachers often adopt the teaching mode of mechanical operation. Students are busy with a lot of exercises. Although they can be calculated correctly, they do not know where to start when they encounter practical problems. The reason is mainly because students just focus on “doing”, but do not understand why. Teachers should teach students not only a simple mathematical method, but also should be the infiltration of mathematical ideas, is to help students construct mathematical knowledge system, so as to learn mathematical thought