向量是近代数学中重要和基本的数学概念之一,它集形数于一身,是沟通代数、几何与三角函数的一种工具,又有着极其丰富的实际背景.由于向量皆有数和形的特征,学生往往难以很好掌握,笔者在平时的调研、听课和教学研讨中发现,对一些稍有难度的平面向量题目很多学生就难以解决,这也是目前教师和学生们普遍感到头疼的问题.如何让学生突破平面向量的解题,笔者觉得要选择典型例题来培育好学生解平面向量问题的四 Vector is one of the most important and basic mathematical concepts in modern mathematics. It is a tool for communicating algebraic, geometric and trigonometric functions and has a very rich practical background. Since vectors are both number and shape , Students are often difficult to master, the author in the usual research, lectures and teaching seminars found that for some difficult plane vector problem many students will be difficult to solve, which is currently teachers and students generally feel a headache problem. Allow students to break through the flat vector of the problem, I think we should choose typical examples to cultivate a good student solution plane vector problem