How big is the world's largest cotton candy sculpture? 🍭
Ali Spagnola set out to break the Guinness World Record with a massive cotton candy sculpture. Kick ...
Kick off the activity with starter slides that spark curiosity by asking students if they recognize the Starbucks logo and how many locations they think are in the U.S. Then, engage them in estimating...
How much pee is in your pool? 🏊🏊
After chlorination, it has been hard to measure the quantity of pollutants in pool water. A Canadian chemist, Xing-Fa...
How much do we spend on Mother's Day - Use the Mother's Day event to engage your students in approximating, reasoning, and investigating as students estimate how mu...
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It's a gorgeous ball, covered with Waterford Crystal triangles, shaped as a geodesic icosahedron. Every New Year's Eve it descends in Times Square to ...
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Students are introduced to some esoteric number categories as they check out the various descriptors of this year's date. What's a Harshad number? What's a...