我们在《一次函数》教学实践中经常遇到一个现象,学生反映老师上课讲的都能听得懂,但课后做作业时就会遇到很多困难,有时甚至一点思路也没有.这种现象说明教师在一次函数的教学过程中,讲得不够透彻,方法不够得当.所以,教师要注意做好现代教育技术与函数教学的整合,以便于让学生在头脑思维当中形成有关问题的初步印象,也就是形成问题的表征.在表征问题上,教师可以通过讲解示范习题,来促使学生在接下来的习 We often encounter a phenomenon in the “one-time function” teaching practice. The students can understand that the teachers can understand what they have learned in class but encounter many difficulties and sometimes no ideas at all. Which means teachers should pay attention to the integration of modern educational technology and function teaching so that students can form the initial impression about the problem in their minds and minds, That is, the formation of the characterization of the problem in the characterization of the problem, teachers can explain by demonstrating exercises to motivate students in the next study