《全日制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。”因此,合作学习在当前小学数学中已成为一种重要的教学组织形式,这不仅是当今课程改革的需要,也是时代发展的需要。合作学习源于教学需要,合作学习次数也应视需要而定。需要合作学习时才合作,如果不需要的话,即使合作一次,那也是多余的。因此教师一定要把握好合作的时机。然而,目前教师对合作学习问题的把握上存在一些问题,有的问题提得过于浅显容易,有的问题 The full-time compulsory education mathematics curriculum standard states: “Effective mathematics learning activities can not rely solely on imitation and memory, hands-on practice, independent exploration and cooperation and exchange and communication are important ways for students to learn mathematics.” Therefore, cooperative learning in current primary schools Mathematics has become an important form of teaching and organization, which is not only the needs of the current curriculum reform, but also the needs of the development of the times. Cooperative learning stems from the teaching needs, the number of cooperative learning should also be as needed. Need to cooperate when learning to cooperate, if not needed, even if the cooperation once, it is superfluous. Therefore, teachers must grasp the timing of cooperation. However, at present teachers have some problems in grasping cooperative learning problems. Some problems are too simple and some are problematic