The teaching building complex of Tsinghua University consists of more than 20 teaching Spaces with different styles. Among them, the Sixth Teaching Building (Yuyuan Building), as the largest modern teaching complex, creates an intelligent teaching space and is equipped with cutting-edge devices such as a dual-screen teaching system and one-click recording and broadcasting of classes, which can meet the needs of cross-disciplinary collaborative teaching. The first ordinary teaching building, the First Classroom Building (Teaching Building One), has been in use since 1952. The three-story building retains the classic layout of lecture halls and interest group activity areas. In recent years, the renovation project has added box-style self-study areas and public communication Spaces, creating a knowledge hub integrating classroom teaching, self-study and academic socializing, and becoming a physical carrier supporting the educational concept that "actions speak louder than words".