函数概念是一种考虑对应、运动变化、相依的关系,以一种特定形式确定地刻画另一种变化状态,由研究形式状态过渡到研究变化过程的思想方法。函数概念的本质在于建立和研究变量之间的对应关系。渗透函数概念,就是要让学生感受到“于变化之中寻求不变,并把握规律的重要性”。数学教师在教学活动中要以函数的观点来组织 The concept of function is a way of thinking that considers the relationship between correspondence, movement, and dependence, and explicitly identifies another change in a particular form, from the formal state of study to the study of change. The essence of the functional concept lies in the establishment and study of the correspondence between variables. Permeation function concept, is to make students feel “Seek the change in the change, and grasp the importance of the law ”. Mathematics teachers in the teaching activities to function point of view to organize