九年级数学下册“二次函数”一章,在整个初中数学中占有非常重要的地位,在中考中也是一大热点和难点。二次函数体现了数形结合的重要思想方法,同时也为高中阶段一元二次不等式的学习提供基础。从多年的经验来看,对于学生而言,要想学好这一章并不容易,特别是一遇到难度较大的综合题,更是手足无措,甚至有的学生还对这一章产生了恐惧症,认为二次函数的题都是难题,只要遇到,不经思考便放弃。下面我就以“二次函数图象的平移”这个较为常见的知识点为例,谈谈我对这章内容的思考,不到之处,请各位同仁指正。苏科版九下“二次函数”其中有一个知识点是“二次函数的图象 The ninth grade mathematics book ”secondary function“ chapter, occupies a very important position in the entire junior middle school mathematics, is also a hot and difficult point in the middle school exam. The quadratic function embodies the important thought and method of the combination of numbers and forms, and also provides the basis for the learning of the quadratic inequalities of one yuan in high school. Judging from many years of experience, it is not easy for students to learn this chapter, especially when they are faced with difficult comprehensive questions, and even some students have feared the chapter. Symptoms, that the problem of quadratic function is a problem, as long as encountered, give up without thinking. Now I will use the more common knowledge point of ”translation of quadratic function image“ as an example to talk about my thoughts on the content of this chapter. If not, please ask my colleagues for correction. Sukki’s version of the ”secondary function" has a knowledge point that is the image of a quadratic function.