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...
Current events
Genres
Grade
DST ends November 5th, 2023 - strange happenings
In this activity students try to figure out how time settings will change as they move from place to place and in the serious weirdness of Arizona and the Navaho and Hopi nations. What variables...
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...
Wildfires and particulate matter
Wildfires in Canada have been spreading dangerous smoke pollution throughout much of North America. What is a dangerous size of particles per cubic meter (PM)? How tiny is th...
Father's Day and Juneteenth; 3 Activities
Algebra
Number Sense
Math and Social Studies
Math and Food
Holidays and Annual Events
Current events
Ratio and Proportion
Data and probability
For Father's Day (Links to different activities)
Thank you Mother and Father for all of those diapers (2015) - Students compare the cost of buying disposable vers...
Earth Day (April 22) Actions for Our Planet
Algebra
Number Sense
Geometry
Math and Science
Math and Social Studies
Holidays and Annual Events
Current events
Ratio and Proportion
3-act tasks
Data and probability
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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 ...
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?
Cold NFL games
There have been some pretty cold football games. How do you suppose the frigid temperatures affect the success or failure of the teams that are involved? Do teams from colder areas usually beat warm...