函数是高中数学教学中非常重要的知识板块,这部分知识也是高中数学教学中的一个难点。不少学生对于函数的理解与应用都不够充分,这使得学生无法深切体会到函数在解决各种实际问题时可以发挥的极大的效用,也无法体会到函数思想在解决很多具体问题时的优越性。函数学习的第一道障碍源于学生对于函数概念的理解上,如何能够有效实现函数概念的教学,这也是很多数学教师都在探讨的一个教学问题。学生在初中阶段就已经接触过函数,也具备相 Function is a very important knowledge in high school mathematics teaching plate, this part of knowledge is also a difficult point in high school mathematics teaching. Many students have inadequate understanding and application of functions, which makes students unable to fully understand the great utility function can play in solving practical problems, and can not understand the superiority of function thought in solving many specific problems Sex. The first obstacle to function learning stems from students’ understanding of function concepts. How to effectively implement the teaching of function concepts is also a teaching issue that many math teachers are discussing. Students have already had contact with the function in the junior high school stage, also have the phase