《中小学数学》(初中版)2014年第11期郭金网老师的文章《由一道错题谈起》,从“合情”与“合理”两个角度审视题目,对错题产生的原因进行深刻而系统的归纳.原文末尾列举的一道错题吸引了我的注意,现将原题摘录,连同探究过程和反思呈现如下.1.原题呈现.(2006湘西)如图1,在一块平地上,张大爷家屋 “Elementary and middle school mathematics” (junior high school edition) in 2014 eleventh Guo Jinwang teacher’s article “from a wrong topic to talk about”, from the “right” and “reasonable” two perspectives examine the issue, right or wrong A deep and systematic induction of the causes of the problem.A wrong title cited at the end of the article caught my attention, the original title is excerpted, together with the inquiry process and reflection are presented as follows. 1, on a flat, Zhang uncle house