初三学生在求函数自变量取值范围时,常出现这样或那样的错误,为帮助同学们纠正这类错误。提高解题质量,本文现将学生解这类问题时出现的错误分类举例说明如下,供广大 The third grade students often find this or that error when they are seeking the range of the function’s independent variables, in order to help the students correct such mistakes. To improve the quality of problem solving, this article now gives examples of misclassifications that occur when students solve such problems.