Ghostly Measurements
In this activity, students will explore how to design a ghost costume 👻👻 by reasoning through sheet dimensions, calculating the best fit for different heights, and interpreting ...
Genres
Genres
Grade
Chocolate Milk Account
🔔 Free Trial Alert! In this activity, students will explore a school milk account where money is deposited and deducted as chocolate milk is purchased over time. But first, start off with the&nbs...
Money Making Movies
Do you enjoy watching movies?🎬 Have you ever wondered just how much money your f...
Germ-Killing Wipes
In this activity, students get to dig into the real impact of disinfectant wipes. With one wipe claiming to kill 99.9% of germs and another at 99.999%, does that tiny extra percentage ac...
Sugary Record
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 ...
Starbucks Sales and Nutrition
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 (Updated)
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-Fang Li, has found a marker for...
A Glass of Sweat
What is this machine for?
Begin with the starter presentation slides to spark students' curiosity about the purpose of the machine. Then, engage them in the main activ...
Happy National D🍩nut Day!
We have 2 activities to support this silly, but awesome holiday -- National Donut Day (June 5th) :
How much have donuts changed?
Students become fam...
How much does America spend for Mother’s Day?
Updated in April 2026 with new data; see the answer key.How much do we spend on Mother's Day? Use the Mother's Day event to engage your students (as a class) in approximating, reasoning, and investiga...