Topic
Activities about percentage change
All you can eat for 10 cents
The history of the Dairy Queen franchise began with this ad in Illinois in 1938: All the ice cream that you can eat for only 10 cents! We...
Algebra
Number Sense
Grades 5–8
Bye bye Antibiotic Chickens
Fast food chains like McDonald’s, Chick-fil-A, Panera Bread, Chipotle, and Whole Foods are moving toward removing antibiotics from the food we consume to help combat antibiotic-resistant diseases in...
Number Sense
Science
Free sample
Red Green Bitcoin
📉 In this activity, students will explore Bitcoin price movements using a chart. They'll analyze trends, calculate price changes, and make predictions based on real data. This activity...
Algebra
Number Sense
Grades 8–HS
Stock Market headlines - Biggest losses since 2008
This year the Dow Jones Industrial Average made headlines as it dropped in March and April. The Dow is measured in points but this decline can also be...
Algebra
Number Sense
Grades 6–HS