新课程标准指出:“有效的数学学习活动不能单纯依赖模仿与记忆,动手实践、自主探索与合作交流是学生学习数学的重要方式,学生的数学学习活动应当是一个生动活泼的、主动的和富有个性的过程。”美国当代著名教育家嘎斯基认为:“从本质上讲,合作学习是一种教学形式,它要求学生在一些由2～6人组成的异质性小组中一起从事学习活动,共同完成教师分配的学习任务。在每个小组中,学生们通常从事于各种需要合作和相互支持的学习活 The new curriculum standard states: ”Effective mathematics learning activities can not rely solely on imitation and memory. Hands-on practice, self-exploration and cooperation and exchange are important ways for students to learn mathematics. Students’ mathematics learning activities should be a lively and proactive Personalized process. “The famous contemporary American educator Garski said: ” In essence, cooperative learning is a form of teaching, which requires students in a group of 2 to 6 heterogeneous groups together Engaging in learning activities and completing teacher assignments In each group, students are usually engaged in various learning activities that require cooperation and mutual support