Is 2024 a special number?
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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
Genres
Grade
Holiday Movies
Grinch Vectors by Vecteezy
Which movie do you think is the highest grossing holiday movie of all time (click on the movie's name below to see its trailer)?
Home Alone, The Grinch, ...
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...
Huge Alaskan Vegetables
The annual Alaskan State Fair has just been completed. As usual, there were some amazingly big vegetables that won the agriculture prizes.
Evidently, even though the growing season in Alaska is s...
Will the Barbie movie out-perform Avatar at the box office?
The Barbie Movie is still doing well in the theaters. It has only been 6 1/2 weeks since its debut. Do you think that it can out-earn Avatar? Students study the numbers, recognize ...
Will sending you back to school this year cost a fortune?
With high inflation rates, supply shortages, and rethinking what is essential spending, back to school spending might be different this year. Back-to-school spending is huge and students mi...
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?
...
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?
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...