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(All text materials are automatically generated by ai intelligence)Japan 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.1. Challenges and countermeasures of educational resources

In Europe and America, many schools attach importance to teaching in small classes, and it is more common to control the class size to about 15 students. In the United States, for example, some high-quality primary and secondary schools and private universities often adopt small class teaching mode. According to the data of American educational research institutions, in the small class teaching environment (15-20 students in each class), students' academic performance has been significantly improved in reading, mathematics and other disciplines. For example, in reading, the average improvement rate of reading ability of small class students is about 20% higher than that of large class students. This is because teachers can adjust teaching strategies more accurately according to each student's reading level in small classes.(All text materials are automatically generated by ai intelligence)I. Successful experiences of Europe, America, Japan and South Korea

In Europe, countries such as Finland, which are famous for their high-quality education, also implement small class teaching. Finnish schools pay attention to the individualized growth of each student, and the class size is not large, so teachers have more time and energy to tap the potential of students. Teachers can tailor their study plans for students according to their hobbies and specialties. In this educational environment, Finnish students have performed well in programme for international student assessment and other tests, and their innovative ability and comprehensive quality have been widely recognized by the international community.1. Challenges and countermeasures of educational resourcesThis class size is also convenient to carry out inquiry learning. Every student has more opportunities to participate in discussions and experiments, and it is no longer a few students who dominate classroom interaction. In science class, 15 students can be divided into several groups to carry out experimental exploration, and each student can operate the instrument, observe the experimental phenomena and put forward his own opinions. This is helpful to improve students' scientific inquiry ability and innovative thinking ability.