Sponge offers classes for children ages birth through elementary school. It teaches language and culture through stories, music, art, activities, and movement. It offers Mandarin, Spanish, French and Japanese language classes in before- and after-school programs. For kids ages 0 - 4 years, child/caregiver classes are offered, where the caregiver stays with the child throughout the class. "Just Kids" classes are offered for kids ages 3 years and up.