在中学数学教学中，学生往往会出现这样那样的疑惑，导致解题的错误，特别是在新的考试说明中，对解题结果的准确性和严谨性提出了严格的要求。因此，为了提高学生的解题能力，提高解题的正确性，在平常教学中，我们必须充分重视对“错解”的分析和研究。一、混淆不清，必要当 In middle school mathematics teaching, students often have such doubts, leading to mistakes in solving problems, especially in the new examination instructions, which puts forward strict requirements on the accuracy and rigor of the results. Therefore, in order to improve students’ ability to solve problems and improve the accuracy of problem solving, in ordinary teaching, we must pay full attention to the analysis and study of “misconceptions.” I. Confusion, necessary when