1. Writing teaching cases by teachers is a way for teachers to constantly reflect on and improve their own teaching, which can make teachers more deeply aware of the key points and difficulties in their work. This process is the process of teachers' self-education and growth.

2. The process of teachers writing teaching cases is the process of mutual transformation between external education theory and internal teaching theory, which can provide rich practical situations for new teachers and in-service teachers, help to integrate theory with practice in teaching and cultivate the ability to analyze and solve problems.

3. Teaching cases are a true and typical record of teachers' teaching behavior, a true embodiment of teachers' teaching ideas and concepts, a valuable resource for education and teaching research, and an important medium for communication between teachers.