《中等数学》85年第二期上《与景山中学同行切磋》一文中,提出对三个问题的看法,我认为是正确的,要向该文三位作者学习对中学教材及教法的钻研和探讨精神.但对该文中的两个论点我不太赞同,也提出与天津教院的同行切磋.1.文中提到:“如果过份强调用 x~2=4,x=±2的思想引出一元二次方程的解 In the second issue of “Middle School Mathematics” in the second issue of “A Discussion with Jingshan Middle School”, I put forward my views on three issues. I think this is correct. We must learn from the three authors of this article about the teaching materials and teaching methods of middle schools. And discuss the spirit. But I don’t agree with the two arguments in this article. I also proposed to discuss with the Tianjin Institute of Technology. 1. The article mentioned: “If you over emphasize x=2=4, x=±2 The idea leads to the solution of a quadratic equation