小学生的认识正处于由直观形象思维向抽象逻辑思维过渡的阶段,在很大程度上是依靠动作进行思维,靠直观感知获取知识。动手操作是解决数学学科的抽象性与学生以具体形象思维为主的认识水平的矛盾的重要手段。因此,我们的教学应该重视操作活动,用操作活动启迪思维,使思维在操作中得到发展。使 The understanding of primary school students is in the stage of transition from visual thinking to abstract logical thinking. To a large extent, they rely on actions to think and obtain knowledge through intuitional perception. Hands-on operation is an important means to solve the contradiction between the abstraction of mathematics and the cognition level of the students based on the concrete image thinking. Therefore, our teaching should pay attention to operational activities, using operational activities to inspire thinking, so that thinking in the operation to be developed. Make