Children's existing knowledge and experience is the starting point for teachers to carry out teaching activities. Based on and using children's existing knowledge and experience is an important strategy for successful teaching. Therefore, before carrying out creative rhythm activities, we should pay attention to guide children to observe and accumulate rich experience in action in life, and promote children to creatively use body movements to show rich and colorful life. For example, before carrying out the rhythmic activity "Happy Shadow Puppetry Person", considering that children lack the relevant experience of shadow puppets, we have generated the theme activity of "Shadow Puppetry". Let children and their parents collect information about shadow puppetry together, organize parent-child activities to visit shadow puppetry museums, let children have a preliminary understanding of shadow puppetry and try to operate the shadow puppetry to perform simple. When carrying out formal rhythmic activities, we first let children learn several basic movements of shadow puppetry walking, and can show the movements with music; Then let children watch the 2006 Spring Festival gala in the shadow puppet dance program "Qiao sunset" video, let children summarize the relevant knowledge and experience through the video and action experience. Such advanced experience enables children to easily do the action modeling of shadow puppets in the activity of "Happy Shadow Puppets", experience the happiness of the activity, and help children to accumulate certain musical vocabulary and artistic movement vocabulary in rhythmical activities.