在学习向量这一部分内容时,受实数和平 面几何知识的影响,容易产生思维定势,如果 进行简单的类比,则会发生知识上的负迁移. 下面剖析一些错误的命题,以期达到纠错防错 之目的. 错命题1 若|a|=|b|,则a=b,或a=-b. 辨析 这是类比实数性质引起的负迁移, 由|a|=|b|,只能确定出向量a,b的长度相等, When learning this part of the vector, the influence of real numbers and plane geometry knowledge is easy to generate thinking potential. If you make a simple analogy, then there will be a negative knowledge transfer. The following analysis of some wrong propositions, in order to achieve error correction The purpose of the error. The wrong proposition 1 If |a|=|b|, then a=b, or a=-b. This is a negative migration caused by the analogy of the real number. It can only be determined by |a|=|b| The lengths of the outgoing vectors a, b are equal,