Geometry

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DST ends November 5th, 2023 - strange happenings

Algebra Number Sense Geometry Science Holidays Current events
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...

Heating with wood - What's a cord?

Algebra Number Sense Geometry Ratio and Proportion Any time math
Do you know what a cord of wood looks like? What size stack is that? What's a thrown stack? What's the dog's name that is standing in front of the wood? How long can I heat my house with that much fue...

Indigenous Peoples or Columbus Day

Algebra Geometry Social Studies Holidays
When Columbus landed in Guanahani (renamed San Salvador, Bahama Islands by Columbus), he began the European settlement of the New World. Guanahani was inhabited by the  Taíno people and...

Lego Fireman +

Number Sense Geometry Science Art Any time math
At the Toys R Us store, we saw an amazing LEGO creation.  He was a life-sized LEGO fireman with a walkie-talkie, an oxygen tank and even an oxygen...

Autumnal Equinox 2023

Algebra Geometry Science
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...

Women's World Cup - How many matches are left?

Number Sense Geometry Sports Current events
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? ...

How many baseballs are in this truck?

Algebra Geometry Sports Any time math
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

Geometry Art Ratio and Proportion 3-act tasks Probability and Statistics
  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

Algebra Number Sense Geometry Art
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

Geometry Art Current events
  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...
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