MathHappening: Puzzle on the Plaza

The National Museum of Mathematics has teamed up with the Flatiron Partnership to celebrate the winter solstice by giving your brain a workout. The first 300 people to arrive at the Flatiron Plaza will help construct and oversized mathematical tiling that contains a secret message. Cups of hot chocolate will be provided to keep brains chugging and bodies warm until the hidden message is finally revealed. All ages.