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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
So just print some more money!
So just print some more money!

What's the big deal with our deficit? Do we actually borrow money to cover our debt? If we do, imagine the interest charges? Help your students (and their...

Number Sense Math and Social Studies Grades 5–HS
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
Bears Ears revisited
Bears Ears revisited

There is some beautiful land in Utah that was changed last year from federally protected land to Utah overseen land. The buttes of Bears Ears (shown above) and...

Math and Social Studies Current events 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
How does the pay for women's soccer compare to that of men's?
How does the pay for women's soccer compare to that of men's?

All soccer players on a team aren't paid the same. The best players are paid more than the simply great players. And in Women's soccer those same differences...

Number Sense Math and Social Studies
Spiraling squares - compass and straight edge
Spiraling squares - compass and straight edge

Can you see the many spirals in this design? Students calculate the size of each increasing round of squares and consider what sort of spirals these must be....

Algebra Number Sense Grades 6–HS
Opening Weekend - Avengers: Endgame
Opening Weekend - Avengers: Endgame

Can you tell from its opening weekend how much the new movie, Avengers: Endgame , might earn in theaters? This activity can be used anytime and is especially...

Algebra Current events Grades 7–HS
Value of a lifetime of Whoppers?
Value of a lifetime of Whoppers?

Locked in a smelly bathroom for one hour and then promised a lifetime of Whopper meals 🍔 , an Oregon man sued BK when the manager's promise was...

Algebra Number Sense Grades 4–7