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2. The change of social concept and educational concept2. Cultivate all-round talentsJapan and South Korea also have experience in class size control. Japanese school education emphasizes refined training, and the class size is generally small. In a class of 15 students, teachers can pay close attention to students' psychological state and learning progress. Japanese educational circles believe that a small class size helps to create a good teacher-student relationship, which has a positive impact on students' physical and mental health and learning motivation. According to the survey, in small class teaching in Japan, students' participation in class has increased by nearly 30% compared with that in large class.

In a class of 15 students, the focus of education is not only the academic achievements of students, but also the development of students' moral cultivation and artistic accomplishment. Teachers can pay more attention to students' moral education and guide students to establish correct values. For example, by organizing class discussions on social equity, environmental protection and other topics, teachers can deeply understand each student's point of view and give targeted guidance.Third, the implementation challenges and coping strategies

Drawing lessons from Europe, America, Japan and South Korea: Controlling the class size of primary and secondary schools and universities to 15 students to improve the quality of teaching and training.2. The change of social concept and educational concept2. The change of social concept and educational concept