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Death Valley, CA - How hot was it?
Death Valley, CA - How hot was it?

This picture may have been Photoshopped and not be a true representation. We blacked out the Fahrenheit reading of this temperature sign at the Death Valley Visitor Center....

Algebra Number Sense Grades 5–HS
Just ONE hot dog
Just ONE hot dog

A newly released nutritional and environmentally sustainable study shows that eating just one hot dog can take 36 minutes off your total healthy lifespan. How many would you...

Algebra Number Sense Grades 3–HS
That's a big tomato!
That's a big tomato!

These Aussi tomatoes (the tomato on the left of all of the tomatoes) are huge. How much do you guess one weighs? Can you figure it out?

Algebra Number Sense Grades 5–HS
Let's learn to gerrymander
Let's learn to gerrymander

In this activity student first try to redistrict our pretend state in order to preserve the overall state's balance in its new districting plan. Then, students redistrict our...

Geometry Math and Social Studies Grades 4–HS
Need to rent some chaise lounges
Need to rent some chaise lounges

Brian is in Crete and he took a picture of this sign. What do you suppose he's going to ask next? Yep. "How much will 6 lounges and...

Algebra Ratio and Proportion Grades 4–HS
Ranked Choice Voting in NYC
Ranked Choice Voting in NYC

New York City is still tallying its election results for a new Mayor. This year they tried Ranked Choice Voting. What does that mean? How does that work?...

Algebra Number Sense Grades 5–HS
How much is a trillion dollars?
How much is a trillion dollars?

U.S. Congress is now debating how much money to approve on spending for infrastructure. The numbers are between 1 and 3 trillion dollars. I can't even fathom that...

Algebra Number Sense Grades 4–7
What is Juneteenth?
What is Juneteenth?

You can appreciate why this is such a great celebration when you look at the stages and some of the events and dates of America moving towards freedom...

Number Sense Math and Social Studies Grades 4–HS
Do caffeinated drinks have similar amounts of jolt?
Do caffeinated drinks have similar amounts of jolt?

We found this interesting caffeine infographic at visual.ly. Wonderings? How many McDonalds coffees do I need to get the same amount of caffeine that I would get in...

Geometry Math and Science Grades 6–HS
Payday loans - What are they?
Payday loans - What are they?

When you need a loan, and you're desperate for help, is a Payday loan a good idea? What is a PayDay loan? How is it different from a...

Algebra Number Sense Grades 5–HS
Monopoly
Monopoly

In the board game, Monopoly, does a property’s distance from GO correlate to its rent when you land on it? Using Brian’s spread sheet (list of properties, distance...

Algebra Number Sense Grades 4–HS
How much did the tooth fairy give you when you lost a tooth?
How much did the tooth fairy give you when you lost a tooth?

Think back to when you were loosing your baby teeth. What was the going tooth rate in your house? Do you think that, on average, you were paid...

Algebra Number Sense Grades 3–5