Fun Full-Day Sessions Sept. 5th and 6th & more!

School season is almost here! We’ve got a great pair of teacherbotfull day sessions to get your child’s creativity flowing.

Sign up for Tuesday Sept. 5th and/or Wednesday Sept. 6th! Each session runs from 9am-3pm. Your kids will love building with other kids in a friendly no-stress environment! Tuesday we’re building the Bubble Blower and Light Drum, and Wednesday will feature a Wheelie Car and Robot Claw!

Choose the location closest to you!
Atlantic Ave. • Upper East Side • Tribeca • South Slope

What else is coming up?

  • Reserve your fall After School spot! This year we’re offering homework help options for extra coverage until 6:30 pm, and local pickups for 321 parents and more! See specific pickup options on the registration pages for the location nearest you!


  • Fall Tiny Builders registration for kids ages 2-4 is open! Sign up for 5 weeks or a first-time trial class!
  • Starting Sept. 3, our North Slope/Gowanus location has moved to our new awesome 492 Atlantic Ave. location between 3rd and Nevins!
  • Come hang out with us on Sept. 16th for our Atlantic Ave Grand Opening! We’ll have free activities plus discounted intro classes for toddlers and kids ages 5-9. Snag a spot and learn more here!
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