Physicists have determined that the best way to subdue wall-bouncing photons is to let them loose until they need a nap. Apply the latest scientific findings to your kid’s play time with today’s Groupon: for $45, you get three children's growth-development classes (a $90 value), eight play-space passes (an $80 value), and lifetime registration fee (a $50 value) at JW Tumbles, located in Staten Island (a $220 total value). You will also get $50 off any birthday party scheduled before the Groupon's expiration date and held within the next year.

JW Tumbles helps kids develop confidence, motor skills, and social tools in a fun, nurturing environment. Classes are offered for children from 4 months to 7 years old, and involve songs, gymnastics, exploration, and sports. Art classes are also offered, granting petite Magrittes the opportunity to play with paints, doughs, and crayons, crafting conventional masterpieces or shocking rejections of aesthetic orthodoxy. Open play space offers unstructured play time, giving kids the opportunity for general frolic in the space. Groupon buyers also get a $50 discount on a JW Tumbles birthday party, with two party professionals concocting an action-packed celebration of games, singing, sports, dancing, and all-around revelry.