反比例函数是初中学生学习的某一类型函数,它的图像和一次函数明显不同,反比例函数是不连续函数,图像分别在两个象限,每个象限内均为曲线,给学生增加难度,也给教学增加难度.反比例函数的应用对学生能力培养作用还是比较明显的,有助于培养学生数形结合思想,所以教学中应加以充分重视,力争学生灵活变通使用所学知识.反比例函数图像的应用,其中常见的就是函数图像面积问题.通过这一问题教学和学生练习,让学生感悟函数关系式 The inverse proportion function is a type of function that junior high school students learn. Its image is obviously different from the primary function. The inverse proportion function is a discontinuous function. The images are in two quadrants and each quadrant is a curve, which increases the difficulty for the students. Teaching more difficult.Application of inverse proportion function on the students ability to cultivate the role is still more obvious, help to cultivate the students shape with the idea, so teaching should be given full attention, and strive to make students flexible use of knowledge.Application of inverse proportion function image , Of which the common is the function of the image area problem.Through this problem teaching and student practice, so that students perceived function relationship