《数学课程课标》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、自主探究与合作交流是学生学习数学的重要方式。随着基础教育课程改革的深入推进,合作学习作为一种重要的学习方式为教师普遍接纳,并逐步运用于课堂教学之中。在几乎所有的课堂上,我们都可以看到小组讨论式的合作学习,但仔细观察就可以发现,好多的讨论仍停留在表面的形式 The Mathematics Curriculum Curriculum Standard states that effective mathematics learning activities can not rely solely on imitation and memory, hands-on practice, independent inquiry and cooperation and exchange, which are important ways for students to learn mathematics. With the deepening of basic education curriculum reform, cooperative learning as an important learning method is generally accepted by teachers, and gradually applied to classroom teaching. In almost all classes, we can all see group-based collaborative learning, but closer examination shows that much discussion remains on the surface