Autumnal Equinox 2023
Updated for 2023!
Saturday, September 23, 2023 at 06:50 UTC (2:50 am EST),
will be the Autumnal Equinox. It is the time of year when an imaginary plane would pass through both the Earth...
Geometry
Genres
Grade
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?
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How many baseballs are in this truck?
In 2017, Old Dominion Freight Line offered 2 free tickets to the next 3 World Series to the person who guesses closest to "How many baseballs are in this truck?". Alas, the contest ended on Au...
Giant beach towel
Beaches are starting to open again. Bring summertime smiles and hopes to your class with this activity. Towel project by Misael Soto. Act One: Check out this beach tow...
Wheel of Theodorus
Bring a little art into your math class as you begin to use the Pythagorean theorem and your students first meet irrational numbers.
For Adventurer members we have an editable Word docx and s...
The HAT tessellation
An Einstein aperiodic tile has just been discovered. Find out what that means and why it is significant. Plus - play with the tiles. Do you want to tile your shower floo...
How hard is it to find a 4 leaf clover? (3 Saint Patrick's Day activities)
Shamrocks in Ireland are actually 3-leafed white clover, trifolium repens. If you are lucky, you can sometimes find a four-leafed clover. How rare is finding a 4-leafed clover? How hard do you...
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? ...
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...
Chocolate heart-shaped raspberry cake
For Valentine's Day, bake a cake!
Students calculate base area or volume of cakes made from 2 cake pan sizes and observe how the volume of the cake changes with the increased pan size. &nbs...