现代心理学家认为，小学生是以具体形象思维为主要思维形式，儿童认识的发展要经历动作、感知———表象———概念这样一个过程。基于这一认识，操作在小学数学教学中的作用越来越为人们所重视。因此加强操作已成为当代小学数学改革的发展趋势之一。学生在用学具进行操作性学 Modern psychologists believe that primary school students are based on the specific image of thinking as the main form of thinking, children's cognitive development to go through action, perception --- appearance --- concept of such a process. Based on this understanding, the role of operation in primary school mathematics teaching has drawn more and more attention. Therefore, strengthening the operation has become one of the trends in the development of contemporary primary school mathematics. Students are using schoolware to operate sexology