在苏教版的高中数学教科书上,平面向量基本定理是一个重要的内容.笔者在每年的教学中,总是感觉这部分内容,相比向量的坐标表示要难很多,很多学生即使能明白做题的原理,但在实际的解题中还是不愿意去做类似“用a,b来表示……”这样的问题.因为它不仅解题过程复杂,计算量大,而且向量的分解、合并着实让人头疼.在最近的高三复习备课中,笔者遇到了与平面向量基本定理有关的一类问题,于是总结了一个结论,供大 In the Sujiao version of high school mathematics textbooks, the basic theorem of plane vector is an important content.In the teaching of the author, I always feel this part of the content, compared to the coordinates of the vector is much harder, many students even understand that Problem, but in the actual problem-solving or reluctant to do similar “use a, b to express ...... ” because it is not only complicated problem-solving process, a large amount of computation, and vector decomposition, The merger is indeed a headache.In the recent review of preparation for the third year of high school, the author encountered a flat-type vector basic theorem related to a class of problems, then concluded a conclusion for the large