皮亚杰认为:“智慧从动作开始,学生的多种感官参与认知活动,可以使信息不断地刺激脑细胞,促使思维活跃,便于储存和提取信息,同时易于激发学生的好奇心和求知欲,产生学习的内驱力。”因此,动手操作、参与实践符合儿童的认知规律,在教学中教师要重视实践操作活动,通过实践操作活动启迪学生思维,把知识的获得与思维的发展有机地结合起来。让学生通过动手操作,在感知中形成概念,在观察比较中探索数学方法和规律,从而使 Piaget said: "Wisdom starts from the beginning of action. Students’ multiple senses are involved in cognitive activities that enable information to continually stimulate brain cells, promote active thinking, facilitate the storage and retrieval of information, and at the same time facilitate the curiosity and curiosity of students Therefore, hands-on and participation in practice are in line with the children’s cognitive rules. In teaching, teachers should emphasize practical activities and inspire students’ thinking by means of practical activities so as to integrate knowledge acquisition and thinking The development of organic combination. Let students through hands-on operation, the formation of the concept of perception, in the observation and comparison to explore mathematical methods and laws, so that