In a sense, preparing children is more important than preparing textbooks, because the core point of our course is to take children as the center, so teachers should first understand children's designs and provide guidance and exploration materials suitable for children's personality to arouse their enthusiasm and initiative in learning. Second, pay attention to every child's performance at any time, give children enough opportunities to explore and express, and predict and preset their reactions and performances. Third, respect children without hurting their self-esteem, and be good at discovering the advantages and small progress of each child, thus becoming their good friends.