电工学中涉及“等效”概念的教学方法探讨

Teaching Method of the Concept of "Equivalent" in the Electrotechnics

在电工学中,对于复杂电路的分析或在介绍新知识点和新概念时,通常会引入"等效"的概念,以使学生能够运用已具备的专业知识结构中的相关知识,来解决新引入的问题。该文通过阐述"等效变换"的目的、条件和范围,以具体知识点为例阐述"等效"概念的教学要点和方法,通过对比不同"等效变换"概念间的联系,以加深学生对相关知识点的理解。同时,采用例题辅助方式贯穿讲解过程,进一步强化学生对所涉知识点的理解。

The concept of "equivalent" is introduced when ana-lyzing a complex circuit or presenting some new knowledge for students in the course of Electrotechnics, which can ease the complex circuit analysis. Moreover, students can solve the new introduced problem with the knowledge they have grasped. Based on the description of the objective, condition and the range of ap-plication, this paper focuses on the teaching method the concept of "equivalent". According to a specific equivalent transforma-tion, the teaching steps and method are provided. In addition, the relation of different concepts of equivalent transformation should be emphasized in the teaching process to help students in learn-ing these equivalent transformations. In the meantime, the exam-ple analysis can be used through the teaching process in order to deepen students' understanding about referred points.