If kids want to someday get into a good Moon college, early manipulation of gravity and bounce training will start them off on the right path. Prepare a wee one for low-gravity econ classes with today's Groupon: for $20, you get a six-visit open play Jump!Pass redeemable at Jump!Zone in Clarksville (a $7 value per visit, a total value of $42). This deal can be used for multiple children across multiple visits.

Jump!Zone is an inflatable indoor play center packed with themed play areas, bouncers, and giant slides for children ages 2 to 12. An inflatable replica of a Kracken gives kids a fun way to learn about the sunken birthplace of fish sticks, while an obstacle course guarded by a 16-foot Batman proves it takes more to be a superhero than witty banter and the services of a talented tailor. Time-traveling tots can visit a dino-styled Jurassic Adventure zone stocked with a volcano slide, inflatable animals, and a rope climb like those used by cavemen to escape the stubby clutches of boorishly chatty T-Rexes. Pint sized play timers preferring stationary entertainment can occupy themselves on the free air-hockey table, leaving their adult counterparts free to recite the periodic table of elements backward in peace.

Parents appreciate Jump!Zone's attentive staff, clean facilities, and commitment to safety. Treat a van full of distant cousins to a fun day out or give your sister the day off and help your nephew conquer his fear of the circus in the Carousel Bounce House. Free Wi-Fi is also available, enabling junior jumpers to blog about their aerial exploits in real time.