《义务教育数学课程标准》提出:“有效的数学学习活动不能单纯地依靠模仿和记忆,动手实践、自主探究与合作学习是学生学习数学的重要方式。”教师备课时应认真领会教材的编写意图,灵活、创造性地利用教材,通过师生之间、学生之间的多向交流,培养学生自主合作探究学习的能力。因此,在教学中我们应该构建以开放、探究、自主为主要学习方式的课堂教学模式,从“学、议、说、做、 ”Compulsory education mathematics curriculum standards“ put forward: ”Effective mathematics learning activities can not simply rely on imitation and memory, hands-on practice, independent inquiry and cooperative learning is an important way for students to learn mathematics. “ Teachers should carefully understand the teaching materials Write intent, flexible and creative use of teaching materials, through the multi-directional communication between teachers and students, students, students develop their own ability to explore learning. Therefore, in teaching, we should construct a classroom teaching mode that is based on openness, inquiry and autonomy as the main mode of learning. From the perspective of ”learning, discussing, speaking, doing,