2. Professional quality of teachers in compound classes. Can teach according to the laws, characteristics, principles and methods of compound class teaching.
3. The educational theory literacy of teachers in compound classes. The teachers in the compound class are not only teaching staff, but also logistics personnel, doing school work, home visits and social workers. Therefore, teachers can't guide these practices if they don't understand educational theory.
4. The educational and scientific literacy of teachers in compound classes. In order to improve the quality of teaching, multi-class teachers in rural areas must carry out multi-class educational and scientific research activities, strengthen training in this area, and truly combine teaching practice with educational theory learning and educational and scientific research activities.