教材是教与学的重要资源,吃透教材、尊重教材、不唯教材、用好教材是高效课堂建设的前提……1问题提出众所周知,函数概念是中学数学中重要的概念之一,函数的思想和方法贯穿高中数学课程的始终,函数在其他学科及现实生活中有着广泛的应用。理解函数概念及函数的思想方法,学会用函数的观点和方 Textbook is an important resource for teaching and learning, thoroughly teaching materials, teaching materials, not only materials, teaching materials is the premise of efficient classroom construction ... ... 1 raised the question As we all know, the concept of function is one of the important concepts in high school mathematics, the function of thinking And methods throughout the high school mathematics curriculum has always been the function of other disciplines and in real life has a wide range of applications. Understand the concept of function and function of the thinking methods, learn to use the function point of view and side