Editor’s note: This segment was rebroadcast on Sept. 30, 2025. Click here for that audio. In the early 2000s, thousands of U.S. schools had their students race the clock to stack cups in gym class.

If you know what Cup Stacking is, you're probably a parent or a kid who graduated recently. Speed stacks have been around for more than 18 years, but it's blowing up in a big way. Not only has sport ...

Indoor recess in Elementary School was the place Michael Vanner found a new passion many years ago. His third-grade teacher gave him and other kids some cups and they would practice stacking. Vanner, ...

Sampson Elementary teacher Charlotte French prefers the nontraditional approach to teaching physical education, so when she first saw a little girl stacking plastic cups in a fury at a table while at ...