二次函数y=ax2+bx+c(a≠0)的图像是抛物线,它是一个轴对称图形,近年中考命题中,围绕二次函数的轴对称性的题目不断出现,抓住它的这一特征,巧妙运用数形结合的思想方法,会使解题简洁,本文尝试在二次函数的教学中,就如何引导学生合理运用轴对称性,谈谈教学体会。例1:(2010浙江金华)若二次函数y=-x2+2x+k=0的部分图象 The image of the quadratic function y = ax2 + bx + c (a ≠ 0) is a parabola, which is an axisymmetric graph. In recent years, the topic of axisymmetry around quadratic functions appears constantly, A feature, clever use of digital combination of thinking and thinking, will make the problem simple, the paper attempts to teach in the quadratic function, on how to guide students to rational use of axisymmetry, talk about teaching experience. Example 1: (2010 Zhejiang Jinhua) If quadratic function y = -x2 + 2x + k = 0 part of the image