含参二次函数问题不仅能考察学生对函数综合知识的掌握程度和灵活运用能力,而且还对分类讨论和数形结合两种数学思想方法有着较高的要求,尤其是分类讨论思想,学生很难做到分类不重不漏,并且恰到好处,究其原因是因为学生未能掌握这类问题的分类标准.本文立足于此,并且结合实例重点谈谈二次函数含参 The problem of parametric quadratic function can not only examine students’ mastery of the comprehensive knowledge of functions and the ability to use them flexibly, but also have higher requirements on the two mathematical methods of categorical discussion and mathematical combination, especially the idea of ​​categorization and discussion, Difficult to do classification does not leak, and just right, the reason is because students fail to grasp the classification criteria for such issues.This article based on this, and with examples focus on the quadratic function with reference