In fact, it is very important to connect young children. How to connect will affect the consistency of the whole education and the long-term development of children. If the young connection is not done properly, it may appear in the study. Lack of concentration in class, weariness of learning, truancy and unsatisfactory academic performance. There may be bad habits such as lack of sleep and loss of appetite in life. Physiologically, physical fatigue, lack of sleep and weight loss may occur. Psychologically, it will also be manifested as heavy mental burden, low mood and lack of self-confidence. It may even lead to poor social interpersonal communication.