1) Preparation of knowledge and experience. Prefabricated educational activities are based on children's existing knowledge and experience, explored by children's groups, and learn from each other by taking advantage of children's group resources. Teachers should pay attention to discovering children's exploration interest in daily class environment creation, regional game activities, life link activities and home cooperation activities, so as to enhance children's exploration experience.

You can tell your child the theme and content of the activity before the group activity, so that the child can take the initiative to prepare before the activity. For example, before the theme of "magical marine life", please ask the children in the big class to discuss: "Which aquarium have you been to? How much do you know about marine life? " Let children collect a lot of data and information from books, CDs, aquariums and websites, and then encourage children to fully display their knowledge of marine life through language, painting and photos. This kind of effective interaction between children can greatly improve the effect of activities. Therefore, the predetermined scope of educational activities is the accumulation of children's experience in the whole social activities from a macro perspective.