向量由于具有几何形式和代数形式的双重身份 ,能融数形于一体 ,它既有代数的运算性质 ,又有几何的图形特征 ,因而使它成为中学数学知识的一个交汇点 ,成为联系多项学科内容的媒介 .因此以向量的相关知识为载体 ,以数形转化思想方法为主线 ,在知识网络交汇点处设计创新力度较大 Because of the dual identity of geometrical forms and algebraic forms, vectors can fuse numbers in one, which has both the operational nature of algebra and the geometrical features of graphs, thus making it a meeting point for mathematics in middle school and becoming a contact The medium of subject content. Therefore, vector-related knowledge is taken as the carrier, and the method of number-form conversion is the main line. The design innovation at the meeting point of the knowledge network is greater.