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一、教材分析本节课是在学习了反比例函数图象和性质以及简单应用之后的一节数学应用及综合课,意在通过解决有关反比例函数的习题,帮助学生理解并灵活应用反比例函数的性质.教学中结合函数图象和性质比较大小,巩固待定系数法求函数关系式,探究k的几何意义,拓宽求函数关系式的途径.既是对前面知识的巩固和升华,也为后续“实际问题与反比例函数”的学习作下铺垫.二、教学目标1.通过观察反比例函数图象,根据双曲线的位置确定k>
First, the textbook analysis This lesson is to learn the image and nature of the inverse proportion function and a simple application of mathematics and synthesis of a section, intended to solve the problem of inverse proportion function to help students understand and flexible application of the nature of the inverse function In the course of teaching, the combination of the function image and the nature is relatively small, consolidating the relational formula of the coefficient to be determined, finding the geometric meaning of k and broadening the way of finding the relation of the function, which is not only the consolidation and sublimation of the previous knowledge, Problems and Inverse Function "Learning to pave the way for two, teaching objectives 1. By observing the image of the inverse proportion function, according to the hyperbolic position to determine k>