Is 2024 a special number?
Image by dashu83 on Freepik
Students are introduced to some esoteric number categories as they check out the various descriptors of this year's date. What's a Harshad number? What's a...
Number Sense
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Grade
Will this be an El Niño winter?
The Oceanic Niño Index (ONI) started to show changes to the Pacific Ocean surface temperatures in April and May of this year. Those temperatures are still rising which is a marker for the upco...
Will I have enough stuff?
Thursday, Aug 10th, is National S'mores Day!
In my pantry I have one new box of Graham crackers, one bag of 6 full-sized Hershey bars, and one bag of marshmallows. Friends are meeting me at the b...
Women's World Cup - How many matches are left?
The first round of Group play has finished and now the remaining teams start the second round of play. The teams have already played a lot of matches. How many? And, how many matches are left?
...
Memorial Day 2023
This Monday, Americans will celebrate Memorial Day. Who are we honoring? How did the holiday come about? Isn't Memorial Day usually on May 30th?
Students...
Time to make your prom clothes ... with Duck Tape
Larissa Leon, from Texas, in her gorgeous Duck Tape prom gown.
If you are going to make your prom clothes then you should start soon ... and buy your Duck Tape.
Crafty teens can make their ...
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...