《义务教育数学课程标准》指出:有效的数学学习活动不能单纯地依赖模仿与记忆,动手实践、自主探索与合作交流是学生学习数学地重要方式。可以看出,“动手实践”是新课标所大力倡导的数学学习方式之一,它力求改变传统、被动、接受式的数学学习 “Compulsory education mathematics curriculum standards” pointed out: Effective mathematics learning activities can not simply rely on imitation and memory, hands-on practice, independent exploration and cooperation and exchange is an important way for students to learn mathematics. It can be seen that “hands-on practice ” is one of the maths learning methods vigorously advocated by the New Curriculum, which seeks to change the traditional, passive, accepted mathematical learning