《中学生数学》2011年1月下期刊登了文章《一元一次不等式组中的参数》(以下简称文1)两道例题的答案出错;8月下期刊登了文章《再谈一元一次不等式组中的参数》(以下简称文2)又有一道例题答案出错.细读文章可以排除打印、排版的错误,那也就是说明两文的作者确实在解题思考上存在误区.找出出错的根源展示给大家应该比纠正错误更有价值.对 In the next issue of “Mathematics for Secondary School Students” in January 2011, there was an error in the answers to the two examples of “the parameters in a set of unary inequality groups” (hereinafter referred to as article 1); in the next issue of August, the article “ ”(Hereinafter referred to as 2) another example of the wrong answer. Read the article can be ruled out print, typesetting mistakes, that is to say the author of the two text does exist in the problem-solving thinking errors. Find out the root cause of the error to everyone It should be more valuable than correcting mistakes