The main purpose of teaching is to convey the prepared information appropriately to the students. This one-to-many interaction in each teaching session can accumulate experience for the improvement and reference of future teaching preparation. As the protagonist of teaching, sufficient preparation is the basic work, especially for theoretical courses. Diversified teaching materials are also an important key factor that affects the quality of teaching, which should be improved and refined in conjunction with new technologies and knowledge. Finally, high-quality teaching content is also an important factor that can stimulate students’ motivation to listen carefully in class, and this can be combined with the teacher’s research results and practical experience.