合作学习是世界性课题,是新课程大力倡导的重要学习方式之一,已经普遍应用于小学数学课堂教学之中。但是,课程改革以来的研究和实践都表明,当合作小组尚未形成良好的合作机制,教师对小组合作学习的时机把握不好,以及缺乏教师的有效指导后,小组合作就无法达到预期的效果,“匆匆过场,草草收兵”“看似热 Cooperative learning is a worldwide issue and is one of the important ways of learning advocated vigorously by the new curriculum. It has been widely used in primary school mathematics classroom teaching. However, since the reform of the curriculum, both the research and practice have shown that the cooperation of the group can not achieve the expected results when the cooperation group has not formed a good cooperation mechanism, the teacher’s timing of the cooperative learning of the group is not good, and the effective guidance of the teachers is lacking. ”Hurriedly to the scene, hurriedly collected “ ”Seemingly hot