Teachers are not only responsible for teaching, but also for other affairs of the school, such as managing students and organizing activities. In teaching, they need to prepare a large number of textbooks, design courses, correct homework and communicate with students and parents. In addition, they also need to attend various meetings and trainings to continuously improve their teaching level and educational ability. In school affairs, they need to manage students' daily life, organize various activities, and establish good relations with other teachers, students and parents.