a cryptocurrency

This 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.1. Improve the teaching effect.I. Successful experiences of Europe, America, Japan and South Korea

It is also more beneficial to the cultivation of students' artistic and sports specialties. Teachers can discover the potential of each student in painting, music and sports, and provide them with more opportunities for guidance and participation in related activities. For example, in music class, teachers can give each student more time to practice solo and improve their singing skills.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.1. Challenges and countermeasures of educational resources

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.Summary: 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.When the class size is controlled at 15 students, teachers can know more about each student's learning situation. Teachers can provide targeted counseling for each student's weak points of knowledge. For example, in mathematics teaching, teachers may only explain the knowledge points in a large class, but in a class of 15 students, teachers can find each student's problems in algebra, geometry and other different sectors, so as to explain the problem-solving ideas in a personalized way.