I just invented this activity recently after a class of four-year-olds got very excited talking about a worm they saw outside! I think that almost all young children are fascinated by worms and their wiggliness, whether they think worms are cute or yukky!
The group should be standing in a circle holding out their hands, palms down. Wiggle your fingers as you sing to the tune of “London Bridge”:
Wiggly, wiggly clap, clap, clap, (clap on “clap”) Clap, clap, clap, clap, clap, clap,
Wiggly, wiggly (wiggle fingers) Clap, clap, clap, (clap) Wiggly, wiggly wormies! (Wiggle fingers, and on “wormies,” wiggle them outward to be like wiggly worms)
Continue, substituting different actions for the clapping. You could stomp, jump, nod, or kick, for example. Then ask your students for their ideas for different actions. One girl today had a fantastic idea – “grow, grow, grow” – where she scrunched down a bit, then “grew” and “grew” up. Isn’t that original? One of the most fun parts of working with young children is hearing their amazing ideas!