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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
AQI - Air Quality Index
AQI - Air Quality Index

The AQI is a measurement of how much particulate matter, dangerous ozone, carbon monoxide, nitrogen dioxide and sulfur dioxide there is in the world's atmosphere at any one...

Number Sense Math and Science 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
It's tick time again ... and Lyme disease
It's tick time again ... and Lyme disease

With the start of summer and wonderful outdoor activities, it might be good to examine the growth of Lyme disease and to recognize its carrier, the deer tick....

Algebra Number Sense Grades 4–6
Shoprite's solar energy goals on the African continent
Shoprite's solar energy goals on the African continent

Shoprite is the largest supermarket chain in Africa. The company is presently engaged in increasing their use of solar power to harness the abundant natural resource of solar...

Algebra Geometry Grades 3–6
Will our U.S. flag change yet again?
Will our U.S. flag change yet again?

How many stripes are in our present flag? (The bottom right flag that has been in use since 1960; See the PowerPoint) How many stars? What do the...

Algebra Geometry Grades 2–5
Man paid in 500 pounds of greasy pennies!
Man paid in 500 pounds of greasy pennies!

A man from Georgia, Andreas Flaten, finally received his last paycheck from his disgruntled employer. He had been owed that last check for several months and was having...

Algebra Number Sense Grades 4–6
John Urschel, retired Baltimore Raven and Black mathematician
John Urschel, retired Baltimore Raven and Black mathematician

John Urschel is a young man with several seemingly disparate characteristics and talents. He is an athlete and a mathematician and he is a black man and a...

Number Sense Math and Social Studies Grades 2–HS
At least the days are getting longer
At least the days are getting longer

What's your guess? How fast are the number of daylight hours changing each day? Are the changes dramatic or subtle? Students make guesses; compute how long, on average,...

Algebra Number Sense Grades 4–7