The contradiction between psychological lock-up and understanding. After entering adolescence, although they still depend on their parents in their lives, they no longer open their hearts to their parents as often as children, but begin to become introverted and locked in. "Not speculative" with parents and teachers, feeling that they can't really understand themselves, so that they often feel a sense of loneliness. Over time, they have a strong desire to be understood and eager to express their hearts. This contradiction between psychological lock-up and understanding is the psychological and behavioral characteristics of adolescence. If it is not handled properly, it is likely to cause misunderstanding and emotional estrangement of students, which will affect their emotional life and social adaptation.