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 time and place.
This W...
Number Sense
Genres
Grade
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 well or were you disappointed? &nbs...
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.
Will this be a record ...
Man paid in 500 pounds of greasy pennies!
Algebra
Number Sense
Math and Social Studies
Current events
Ratio and Proportion
3-act tasks
Data and probability
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 difficult...
Peeps
How many Peeps are sold at Easter time each year?
Students estimate the number of Peeps sold each Easter season. They consider reasonability by making guesses they think might b...
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.
Can you figure ou...
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 mathematician. He loves what he...
At least the days are getting longer
Algebra
Number Sense
Math and Science
Holidays and Annual Events
Current events
Ratio and Proportion
Data and probability
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 l...
How should I spend my rewards?
There's a new way to earn rewards at many grocery stores. For every dollar that you spend, you accumulate points. Then there are special rewards where you earn an extra 500 points for ...
Crazy basketball score
Wow! Look at that score!
There were some scoreboard malfunctions in this December 15, 2020, pre-season game.
What might have been the final score if this game progressed at this rate?
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