在中学数学现行教材中,函数是一大模块,占有比较重要的位置,是高考的考点和热点,也是师生教学上的难点。如何提高函数这部分内容的教学质量和教学效果,让学生轻松而全面地掌握函数的有关知识,是很多中学数学老师既重视又感到较为棘手的问题。这是一个亟待研究、探索 In the current middle school mathematics textbook, the function is a large module, occupy a more important position, is the test center and hot spots, but also teachers and students teaching difficulties. How to improve the teaching quality and teaching effect of this part of the function so that students can grasp the knowledge of the function easily and comprehensively is a problem many secondary school mathematics teachers attach importance to and feel more troublesome. This is an urgent need to study and explore