初中函数的出现对于初中生来说是质的变化,从常量到变量的过程,学生要正确处理好常量和变量之间的复杂关系。函数在初中数学中是一个重点,同时也是一个难点,它要求初中生开拓新的思维,深度理解函数概念,掌握函数抽象符号以及处理好存在复杂性和辩证关系的常量和变量。 The emergence of junior high school function is a qualitative change for junior high school students, from the constant to the variable process, students should correctly handle the complex relationship between the constant and the variable. Function in junior high school mathematics is a key, but also a difficult point, it requires junior high school students to develop new thinking, a deep understanding of the concept of function, abstraction of function abstraction and deal with the existence of complex and dialectical relationship between the constants and variables.