Arrange exercise mats, beach balls and small trampolines around the room.
Keep the lessons fun and playful, with lots of moving around to the beat of some music. Preschool-aged children enjoy letting off energy and learning new skills, such as jumping or running, or reaching with their arms. These are the basic skills they will need in tumbling and should be addressed first.
Keep teacher-student ratios low so that you can focus on helping each student build self-esteem as well as fine and gross motor skills by practicing skills at different stations. Children will learn basic body positions and very simple gymnastic moves while learning how to share with other students and follow directions.
Allow the older children, the four- and five-year-olds, to attempt more difficult moves with some fun props. Teach them more tumbling techniques, such as rolling over a beach ball. While practicing these tricks, they will be perfecting their hand-eye coordination and gaining better balance. You may wish to try teaching them cartwheels along with the regular somersaults.
Consider dividing the boys and girls into two different groups so that they can work on separate techniques. You can teach the girls some basic cheerleading moves, such as jumping and cheering, and practice tricks like handstands and frontward rolls. With the boys, you can work on tumbling and cartwheels, and teach them a basic flip and some jumps on the trampoline.