Without exercise, children will never build the strength to cut their own sandwich crusts or tear geometry books in half with their bare hands. Foster childhood vigor with today’s Groupon to Twigs Kids in West Carrollton. Choose between the following options:

• For $49, you get a six-week kids’ gymnastics course from Monday, January 16 to Saturday, February 25, 2012 (a $113 value).
• For $85, you get a two-hour gym or swim celebration and play for a birthday child and 10 guests (a $175 value).<p>

At Twigs Kids, children aged 3–18 learn acrobatics on apparatuses such as bars, balances beams, and vaults or participate in instructor-led pool or gymnastics parties in a 20,000-square-foot facility. Boys and girls learn in separate gymnastics classes to prevent the spread of cooties while they work through achievement-based curricula divided into nine levels and loosely based on the USAG Junior Olympic program. Each class increases youngsters’ agility, balance, and self-confidence, providing a foundation for future athletic endeavors. Alternatively, parties bring a birthday celebrant and 10 friends together for swimming or gymnastics led by an instructor. Twigs Kids supplies the tableware and drinks, as well as a water bottle for each child and a T-shirt for the child of honor. While kids play, parents look on and check their kids for bald spots from the upstairs observation deck, outfitted with a café and free WiFi.