小学数学教材是教师实施课堂教学的基本素材,它也是学生数学学习的主要工具,它是课堂中师生互动的一种“介质”、一个媒体。但是在实际的教学中,特别是在上公开课时,教材的作用被很多教师遗忘。上公开课时,教材真的要一用到底?或是创造性的使用教材真的是不用课本吗?这是值得我们思考的问题。常听有经验的教师对年轻教师说:“教材的内容、编排的顺序是经过众多专家、学者审定出来的。他们在编写时必定经过深思熟虑、精心安排,所以上公开 Primary school mathematics textbooks are the basic material for teachers to implement classroom teaching. It is also the main tool for students to learn mathematics. It is a kind of ”media“ and a medium in which teachers and students interact in class. However, in actual teaching, especially in open classes, the role of teaching materials is forgotten by many teachers. On the open class, the textbook really to use in the end? Or creative use of textbooks really do not have it? This is worth our consideration. Often experienced teachers to young teachers, said: ”teaching materials, the order is organized by many experts and scholars validated .When they are written must be thoughtful and meticulous arrangement, so the public