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学生初中学习过函数的概念,初步认识到函数是一个刻画某些运动变化数量关系的数学概念;进入高中以后,又进一步学习了函数的概念,认识到函数是两个数集之间的一种对应。虽然课本上也通过举了几个生活中的实际例题引入了函数的概念,但多数学生都觉得函数的概念太抽象,理解不透,为解决函数的相关问题带来了很大难度,在此笔者对函数的概念做了以下几点分析供大家参考。
Students learn the concept of the function of the junior high school, initially realized that the function is a mathematical concept to describe the relationship between the number of certain changes in movement; into high school later to further learn the concept of the function, recognize that the function is a between two sets correspond. Although textbooks also introduce the concept of functions by citing actual examples in life, most students find the concept of functions too abstracted and unintelligible, which makes it difficult to solve problems related to functions. The author made the following analysis of the concept of function for your reference.