一、命题趋势二次函数在初中数学中占有十分重要的地位,它也是后续学习的基础.二次函数综合题在中考命题中常常以“压轴题”的形式呈现.二次函数除了考查待定系数法、二次函数的图像与性质等知识外,它与其他函数、方程、不等式、几何图形的综合在综合题中出现的可能性很大.二、存在问题1.学生解题步骤的不规范和计算基本功欠缺 First, the trend of proposition Quadratic function occupies a very important position in junior high school mathematics, it is also the basis for follow-up study.Complex quadratic function in the senior high school entrance examination questions are often presented in the form of To be determined coefficient method, the quadratic function of the image and nature of knowledge, it and other functions, equations, inequalities, geometric synthesis in the synthesis of the possibility of a great deal. Second, there are problems 1. Steps Non-standard and lack of basic skills