新课程标准指出:“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、自主探索与合作交流是学生学习的主要方式”。“自主学习、合作交流、探究学习”模式是指学生在教师的启发和帮助下,以学生为主体,充分发挥小组学习、全班学习的群体作用,在合作中学习,丰富语言积累,培养学生主动探究、团结协 The new curriculum standard states: “Effective mathematics learning activities can not rely solely on imitation and memory, hands-on practice, self-exploration and cooperation and communication are the main ways for students to learn.” “Autonomous learning, cooperation and exchange, explore learning ” model refers to the students inspired by the teachers and help to students as the main body, give full play to group learning, the role of group learning, learning in cooperation, enrich the language accumulation, Students take the initiative to explore, unity and cooperation