This paper discusses the teaching method of employing typical classroom demonstration experiments in college physics courses. It explores instructional approaches that effectively bridge physics demonstrations with theoretical knowledge, guiding students to observe experimental phenomena and engage in extended practices of exploratory demonstrations. Additionally, this work examines the integration of AI technologies into physics demonstrations and investigates modular teaching strategies for classroom physics experiments.

This paper reviews the research progress of the research team in the Department of Physics, Tsinghua University, concerning the design, development, and application of high-temperature superconducting (HTS) microwave filters. The current state of HTS microwave filter research is presented, highlighting the team's development efforts in narrowband, wide-stopband, dual-band, triple-band, and broadband HTS filters. Furthermore, the practical application of HTS filters in mobile communication base stations is discussed.