《数学课程标准》明确指出:“有效的数学学习活动不能单纯地依赖于模仿与记忆。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。”小学阶段,越是低年级的学生他们的注意力时间越短、持久性越差,这无疑会影响到课堂教学的效果。因此,我们必须 The Mathematics Curriculum Standard clearly states: “Effective mathematics learning activities can not rely solely on imitation and memory. Hands-on practice, independent inquiry and cooperation and exchange are important ways in which students can learn mathematics.” In the elementary school, the lower grades The shorter their students’ attention, the poorer their durability, it will undoubtedly affect the effectiveness of classroom teaching. Therefore, we must