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The Forever Roll
The Forever Roll

That's a big roll of toilet paper! Why would anyone need such a big roll of toilet paper? How does it compare to Charmin's other toilet paper products?...

Algebra Number Sense Grades 4–HS
How should I cook my turkey?
How should I cook my turkey?

Should I oven bake it, deep fry it or barbecue and smoke it? When do I have to wake up to begin preparations? How long will the cooking...

Algebra Number Sense Grades 3–6
How many Smashburgers?
How many Smashburgers?

Egad! There must be a million ways to craft one of these burger! How many ways do you think that there are? Act I - Study the menu...

Algebra Number Sense Grades 6–HS
Eliud Kipchoge runs marathon in 1:59:40.2
Eliud Kipchoge runs marathon in 1:59:40.2

Eliud Kipchoge breaks 2 hour marathon barrier. On October 12 th 2019, Eliud Kipchoge ran a marathon in Vienna in under 2 hours. He has now broken a...

Algebra Sports Grades 6–HS
Operation Gratitude – Halloween candy buy back
Operation Gratitude – Halloween candy buy back

This is a great idea! Motivate kids to get rid of all of that candy for a good cause. Operation Gratitude and dentists are encouraging healthy eating, motivated...

Algebra Number Sense Grades 4–6
How much should the 40-oz size cost?
How much should the 40-oz size cost?

We found this chalkboard menu at a coffee shop recently. The shop had prices for the 12-oz (small), 16-oz (medium) and 20-ounce (large) cappuccinos. And they will also...

Algebra Number Sense Grades 6–HS
Largest coffee, new world record
Largest coffee, new world record

The world record for the largest cup of coffee was recently set (see picture above). In this activity students explore scale, similar figures, volume and measurement as they...

Algebra Number Sense Grades 6–HS
Who's going back to school?
Who's going back to school?

Students look at the past and present populations of the U.S. and the past and present population of school attendees to calculate the percentage of the population that...

Algebra Number Sense Grades 5–7
What's the answer?
What's the answer?

Image by Twitter user @pjmdoll. Math doesn't usually create a buzz on Twitter. This past week this post did just that. People argued online about whether the answer...

Algebra Number Sense Grades 4–HS
Are original movies better than their sequels?
Are original movies better than their sequels?

We've gathered some data on movie ratings and their sequels and asked students to analyze the data, decide on some analysis and debate (with their mathematical data) which...

Algebra Number Sense Grades 5–HS
Point of view
Point of view

If you have a set of cubes for your classroom, this would make a great group hands-on project. Its an old puzzle but the activity deserves a revisit....

Geometry Math and Art Grades 3–HS
Louisiana
Louisiana

We recently watched the approach of Hurricane Barry and worried about the fate of Louisiana. After the devastation of Hurricane Katrina, what would another powerful hurricane do to...

Algebra Number Sense Grades 4–HS