函数是初中阶段学习的重要内容,同时也是一个难点.《数学课程标准》对于函数部分内容的定位从以往单纯作为一个“知识点”转变为“刻画变量之间变化关系的数学模型”.北师大新教材也非常注重学生对函数内容的学习,并且明确提出要培养学生的函数思想.那么,学习函数我们应从哪些方面把握呢?同学们可以通过以下几个方面来帮助自己对函数的理解. Function is an important part of junior high school learning, and it is also a difficult point. The positioning of the function part of the “Mathematics Curriculum Standards” has changed from a simple “knowledge point” to a “mathematical model depicting the changing relationship between variables”. Dah Sing Teaching Material also pays great attention to the students’ learning of the content of the function, and clearly proposes to cultivate students’ function ideas. Then, from which aspects should we grasp the learning function? Students can help themselves understand the function through the following aspects.