gold backed digital currency- Top Knowledge

2. Japan and South Korea cases1. European and American cases1. Improve the teaching effect.

1. Challenges and countermeasures of educational resources1. Challenges and countermeasures of educational resourcesI. Successful experiences of Europe, America, Japan and South Korea

2. The change of social concept and educational conceptSummary: Learning from the successful experience of Europe, America, Japan and South Korea and controlling the class size of primary and secondary schools and college students to 15 students has many positive strategic significance for improving the quality of teaching and training, and cultivating more all-round high-quality talents.