From July 21st to 22nd, Mr. Chen Wenfeng, Special Child Development Consultant of Children's Development Home of the Children's Development Center of Peking University, went to the Department of Psychology, First Hospital of Shijiazhuang Medical University to conduct a two-day training course on sensory environment theory and practical exercises. The arrangement of this training is based on the concept of Syncro SI Xing Kesi treatment, synchronization and continuous learning, practice follow, cut in, bring out.