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(All text materials are automatically generated by ai intelligence)Third, the implementation challenges and coping strategiesIn terms of educational concept, teachers also need to adapt to this change from large class teaching to small class teaching. Teacher training is particularly important. Schools can organize teachers to participate in training courses in small class teaching and learn the methods and skills of small class teaching, such as how to carry out personalized teaching and how to organize efficient group activities, so as to improve teachers' teaching ability to adapt to the new teaching mode.

I. Successful experiences of Europe, America, Japan and South Korea2. Japan and South Korea cases1. European and American cases

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.Third, the implementation challenges and coping strategies1. Improve the teaching effect.