Divide the group into teams of equal size, with five to seven players on each team (3 also works). Have kids think up a name with one-syllable for their teams. Then line teams up next to each other behind a starting line.
Instruct team members to place hands on the shoulders of the team members in front of them and race to a finish line according to the following rules of movement: The first person in line may hop one step forward. Proceed down the line until the last person in line hops one step forward. After the last person hops, he or she must shout the team name. Then the whole team may hop one step forward all at the same time. Continue with this process to move the caterpillar along.
Players must keep their hands on the shoulders of the team members in front of them at all times during the race. Players are only allowed to move forward by hopping one step forward with both feet at once. If any team member breaks any of the above rules, it must return to the starting line and begin again.