Designing Stronger Skateboards (Video 1)

It's pretty common for skateboards to break. So Tim Piumarta makes skateboards that "last a ridiculously long time." He has to understand force and kinetic energy to measurement and algebra in order to make them extremely strong and long-lasting.

Designing Stronger Skateboards (Video 2)

It's pretty common for skateboards to break. So Tim Piumarta makes skateboards that "last a ridiculously long time." He has to understand force and kinetic energy to measurement and algebra in order to make them extremely strong and long-lasting. Updated version.

Flowers by the Millions

You buy a dozen roses - he buys 3 million! Plus 1,250 sunflowers, 4,000 irises, and 5,000 calla lilies. In fact, he buys more than 100 million flowers a year. Introduce your students to someone who works with really big numbers.

The First American Coins

Steve Contursi owns the first gold coin minted in the US. It's worth 6 million dollars. But numismatists like Steve don’t just collect coins—they also collect their stories. Find out the meaning behind the term "two-bits" and much more!