The Scale of Things
🌎In this activity, students will explore the concept of size of different objects around us through estimation and scientific notation.
Begin with the starte...
Number Sense
Genres
Grade
Mashed Potatoes Proportions
🥔 "Why do we never have enough mashed potatoes at Thanksgiving?" In this updatedactivity, students will dive into the math of mashed potatoes planning to ensu...
Ulmer Nest
🏠In this activity, students will dive into estimation and critical thinking as they explore ‘Ulmer Nest’. It’s essential to start with the starter slides, where student...
Shrinkflation - Updated
📈💵In this updated activity, students will explore shrinkflation and its impact on the products we love. Building on our starter slides discussi...
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...
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...
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...
Earth Day Actions for Our Planet (April 22)
We have 16 activities that you could use for Earth Day! April 22nd is Earth Day. Help your students become activists for our planet? We have 16 activities that...