《全日制义务教育数学课程标准》中指出:“有效的数学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的重要方法。”小组合作学习已经被教师越来越广泛地运用于以学生发展为本的课堂教学中,因此,及时、恰当地把握合作学习的时机,对于唤醒学生沉睡的潜能,激活封存的记忆,开启幽 Full-time compulsory education mathematics curriculum standards: “effective mathematical 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.” Group cooperative learning has been teachers More and more widely used in the development of students in the classroom teaching, therefore, timely and appropriate grasp of the timing of cooperative learning, to awaken the students sleep potential, activate the sealed memory, open the quiet