一、教材分析本节课是在学生初二学习了函数概念、一次函数的相关知识,初三学习了二次函数的相关知识及反比例函数概念的基础上,研究反比例函数的图象和性质。它是初中阶段研究的最后一种函数类型。由于学生对函数的研究已经有了一定经验,所以对其研究的过程应该很熟悉,但因反比例函数的自变量取值是间断的, First, the textbook analysis This class is in the second grade students to learn the concept of the function, a function of the relevant knowledge, the third learned the knowledge of quadratic functions and the concept of inverse function, based on the study of inverse proportion function of the image and nature. It is the last type of function studied in the junior middle school. As students already have some experience on the function of the study, so the process of its research should be very familiar with, but because the value of the inverse function of the inverse function is intermittent,