复数中容易出错的几类问题湖南省张家界三中李高学解题难免出现错误，最根本的错误是误入歧途而不知晓，陷入误区而不能迷途知返．有的学生之所以屡错难改，归根结底是不知错，或知其错，但不知为什么错．笔者认为：教师不应满足于学生会改错，更重要的是让学生在知错中改... Several kinds of problems that are easy to make mistakes in plural numbers Hunan Province Zhangjiajie No. 3 Middle School Li Gaoxue has inevitably made mistakes. The most fundamental mistake is to go astray and not knowing, and fall into a misunderstanding. The reason why some students repeatedly make mistakes is not correct or wrong, but I don’t know why. The author believes that: teachers should not be satisfied with the student union to make mistakes, and more importantly, allow students to change their mistakes...