Geometry

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A geodesic icosahedron, the Times Square New Year's eve ball

Geometry Math and Science Holidays and Annual Events Math and Art Current events
Image by kjpargeter on Freepik It's a gorgeous ball, covered with Waterford Crystal triangles, shaped as a geodesic icosahedron.  Every New Year's Eve it descends in Times Square to mark the...

What is a quantum dot?

Algebra Number Sense Geometry Math and Science Current events Ratio and Proportion Wow factor Any time math
 In this activity, students work through the nomenclature to understand the possibilities of nano science and quantum dots.  Questions that are answered; How many nanometers are in a millime...

DST ends November 5th, 2023 - strange happenings

Algebra Number Sense Geometry Math and Science Holidays and Annual Events 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 Math and Social Studies Holidays and Annual Events
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 Math and Science Math and 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 Math and 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...

How many times bigger?

Algebra Number Sense Geometry 3-act tasks Any time math
Listen to students initial thoughts as they wrestle through what "bigger" means ... length? height? wheel-base? volume? [table id=10 /] Act One: What questions come to mind? How many times gr...
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