问题式教学法在《信号与系统》课程教学中的应用——以抽样定理为例

Application of Problem-based Teaching Method in Teaching of 《Signals and Systems》——By Taking the Sampling Theorem for Example

抽样定理是《信号与系统》课程中的重要知识点。抽样定理的描述并不复杂,也很容易记忆,但真正理解这个定理的学生却较少。从抽样定理的引入、抽样定理的深化、抽样定理的进一步讨论3个方面探讨了问题式教学法在抽样定理教学中的具体应用。实践表明,教师引导下的问题式教学法改变了教师满堂灌的做法,将学生被动的接受变为积极的参与,取得较好的课堂教学效果。

Sampling theorem is an important knowledge point in the course of《Signals and Systems》.The description of the sampling theorem is not complicated and is easy to be remembered.But the students who really understand this theorem are less.This paper discusses the application of problem based teaching method in its teaching of 3aspects,such as the introduction,the deepening and further understanding of the sampling theorem.Practice proves that the problem-based teaching guided by teachers changes the teacher center approach and turns the passive acceptance of students into active participation.This method gets an excellent result in teaching program.