Two 12s or one 18?
A little more pizza fun before Pi day!
Which should we order and why? Two 12-inch pizzas or one 18-inch pizza? Which will give you more pizza? More crust? Which is the better deal? ...
Number Sense
Genres
Grade
Square or Round - which pizza should I buy?
Warm up for π day with this updated activity!
Subway has great Flatizzas but Sbarro's pizzas are good too.
If that slice from Sbarro is from an 18-inch pizza cut into eight piece...
Iditarod 2023 – The Last Great Race on Earth
The Iditarod Dogsled Race will begin this year on Saturday, March 4th in Anchorage, Alaska. It is often called The Last Great Race on Earth because it is so long and grueling. Students ...
Lunar New Year 2023
The year of the Water Rabbit
Students explore the least common multiple of these two cycles without ever hearing the term LCM. They explore some of Asian culture and begin to understand the...
Is 2023 a special number?
1998 was a Harshad year.
What do you notice about the number 2023?
What is a Harshad number?
Does 2023 meet the criteria?
Big deal? Rare? Often?
Wind chill
The weather forecasters tell us what the wind chill temperature will feel like. How do they figure out that number? In this activity students use the National Weather System chart ...
The Algebra of Magic Squares
Have you seen magic squares before?
How could a teacher use these puzzles to help students with different number skills?
How few blank cells could you leave?
Are there any special cel...
Whole lot of cookies
Jennifer Fairbanks from Hopkinton, MA sent us this picture of the cookies that she baked in 4 hours using 13 eggs and 5 cups of sugar.
Do you see some math here?
Do you have an add...
How big could this mid-term election be?
Will the November 8th 2022 election bring record number of voters to the polls? Students get a chance to understand what the usual percentage of voters is, look for trends and central tende...
I need help raking my leaves
Brian has spent too much time thinking about his leaves. He's worried about raking them alone and thinking about how long the job would take if people helped.
In this activity students see the inve...