新课程观视教材为工具和材料,是教学资源之一。教材中蕴藏着许多隐而不彰的知识,它们渗透在教材的字里行间,隐藏于一些定理、结论、习题中,隐含于知识的运用过程中,这就需要师生共同挖掘其内涵、把握本质属性、拓展应用途径。本文利用人教A版《数学4》(必修)里给出的共线向量定理,得出结构 The new curriculum observation teaching materials for tools and materials, is one of the teaching resources. Teaching materials contain many hidden knowledge, which infiltrate the teaching materials between the lines, hidden in some theorems, conclusions, exercises, implied in the use of knowledge in the process, which requires teachers and students to explore their connotation, to grasp the essence Attribute, expand application way. In this paper, we use the collinear vector theorem given in the A-line Maths 4 (compulsory) to teach that the structure