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The new R-naught number
The new R-naught number

There's a number used to quantify how fast a virus will spread, the R-naught number. As the coronavirus spread though out the world, we saw how the threat...

Algebra Number Sense Grades 4–HS
Olympic Skateboarding
Olympic Skateboarding

We are very excited to see skateboarding as an event in the Tokyo Olympics. Skateboarding is athletic, artistic and difficult to master. Why has it taken so long...

Algebra Number Sense 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
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
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
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
Dunkin's Go2s
Dunkin's Go2s

Last year, Dunkin Donuts offered a great deal for getting two breakfast sandwiches at a pretty low cost. Check out their poster for the sandwich costs and pictures....

Algebra Number Sense Grades 5–HS