教材分析向量运算是数的运算、集合运算之后又一次对运算的扩充,是深化对运算的认识的契机.因此,向量的加法运算的教学就应该充分借助学生已有的实数运算的知识,进行同化与顺应.向量运算又是以物理模型为原型构建的,正体现了“数学是模型的科学”的数学认识,而且向量是以物理为 Teaching vector analysis is the number of computing operations, set operations after another expansion of computing, is to deepen the understanding of computing opportunities.Therefore, the teaching of vector addition should be based on the students already know the real number of operations, Assimilation and adaptation.Vector computing is based on the physical model as a prototype to build, is embodies the “mathematics is a model of science” mathematical understanding, and the vector is physical