《新课标》强调:“有效的数学学习活动不能单纯地模仿与记忆,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。”因此,合作学习自然被引入了课堂。小组合作的学习方式看似简单,但在教学实践中却不是容易调控的,很容易走进误区,达不到预期的目的。 “The new curriculum standard” emphasizes: “effective mathematics learning activities can not simply imitate and remember, hands-on practice, independent exploration and cooperation and exchange is an important way for students to learn mathematics.” Therefore, cooperative learning is naturally introduced into the classroom. Group learning mode of cooperation seems simple, but in teaching practice is not easy to control, it is easy to go wrong, can not achieve the desired purpose.