The Little Gym in Waldorf, MD is a great place to bring your preschoolers. There are classes for kids as young as 10 months old, that include music, talking about colors, letters, etc. and of course physical activities such as walking, running, jumping, etc. When the kids get a little older, they use the gymnastic equipment which helps develop their upper body strength. The owners and staff at The Little Gym are friendly, knowledgable and very approachable. I would reccomend it to anyone in town.