Juvenile Xiejie is to cultivate children's adaptability to school, not primary school. A big misunderstanding of children's convergence work is the serious tendency of primary school. Some teachers give children the treatment of primary education in advance, let them study primary school textbooks and organize teaching in the form of primary education. These practices seriously violate the characteristics of children's physical and mental development and are an important reason for children's weariness of learning and bad study habits.