Abstract: In order to make it easier for students to  understand abstract and complex physical concepts in electrodynamics and to stimulate their interest in independent learning and exploration, our  team has adopted practical teaching courses, which account for 40% of the total, to teach students to implement the visualization of basic knowledge and cutting-edge scientific applications in electrodynamics through Matlab. Based on the fundamental theories of electrostatic fields, magnetic fields, and the propagation of electromagnetic waves, drawing cases with clear physical significance and moderate difficulty are designed to help students consolidate the theoretical derivation from traditional classroom teaching, deepen students' understanding of the laws governing electromagnetic fields and, at the same time, cultivate their ability to address real-world problems by integrating electrodynamics knowledge  with tools such as Matlab, thereby elevating the educational quality on various fronts.

Key words: Matlab, electrodynamics, practical teaching courses, visualized case