【设计理念】本节课是苏科版教材《数学》八年级下册的内容,是在前面学习了反比例函数、反比例函数的图象和性质基础上的一节应用课,教材内容遵循“问题情境→建立模型→解释、应用与拓展”的模式展开,让学生经历知识的形成与应用过程。本课时教学的核心任务是让学生感受现实世界中反比例函数大量存在,能利用所学的反比例函数的相关知识分析和解决一些简单的实际问题,注重数学思想的 【Design Concept】 This lesson is Su Ke version of textbook “mathematics” eighth grade volume is in front of the study of the inverse proportion function, the inverse proportion function of the image and the nature of a section based on the application of teaching materials to follow the “ Problem situation → establish model → explain, apply and expand ”mode, so that students experience the formation and application of knowledge process. The core task of this lesson teaching is to enable students to feel the existence of a large number of inverse functions in the real world, can use the relevant knowledge of the inverse proportion function learned to analyze and solve some simple practical problems, pay attention to mathematical thinking