在高中数学教学中,我们经常会遇到一些错误的结论,学生甚至我们老师都信以为“真”,头脑中的一些错误观念根深蒂固,若不根除,作为师者会误人子弟、蒙受“水货”之虞,作为学生则会以讹传讹、谬误不分,贻误其成长.罗增儒教授曾指出:有些传统题目十几年乃至几十年无任何改进,从这? In high school mathematics teaching, we often encounter some erroneous conclusions. Students and even our teachers believe that they are “true.” Some wrong ideas in the mind are deeply ingrained. If they are not eradicated, those who are teachers will mistaken children and suffer “parallel imports.” As a student, students will be rumored and mistaken for their own growth. Prof. Luo Zengru once pointed out: Some traditional topics have not improved for more than ten years or even decades.