讨论是小学数学课堂教学常用形式之一。适当组织学生参与讨论，能有效地调动学生思维活动的积极性，帮助学生深刻理解数学知识，也有利于激发学生学习兴趣、提高口头表达能力。同时由于课堂讨论中学生与学生，学生与教师之间进行多向信息交流，也是教师指导学习思考方法的好时 Discussion is one of the commonly used forms of primary school mathematics teaching. Appropriate organization of students to participate in the discussion, can effectively mobilize the enthusiasm of students thinking activities to help students a profound understanding of mathematical knowledge, but also help to stimulate students interest in learning and improve oral ability. At the same time as the class discussion between students and students, students and teachers to conduct multi-directional information exchange, but also teachers to guide learning thinking method good time