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The HAT tessellation
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...

Geometry Math and Art Grades 3–HS
What is an atmospheric river(AR)?
What is an atmospheric river(AR)?

North America from space. Elements furnished by NASA - https://www.noaa.gov/stories/what-are-atmospheric-rivers How are they ranked? Students become familiar with this weather phenomena and learn how the different ARs are...

Algebra Math and Science Grades 4–HS
How hard it is to pick the perfect bracket? (Updated)
How hard it is to pick the perfect bracket? (Updated)

Updated (2026)! Games have begun and there have been several upsets but March Madness won't be over until the finals on April 3rd and 4th. March Madness bracket...

Algebra Number Sense Grades 5–HS
March Equinox - big deal? ... and 5 more Spring activities
March Equinox - big deal? ... and 5 more Spring activities

What's with the March Equinox? Does it really affect our lives? Is it just some astronomical occurrence? Students calculate the daylight hours at the March Equinox by time...

Algebra Math and Science Grades 2–6
March Madness - Does seeding really matter?
March Madness - Does seeding really matter?

March Madness, the big 68 team college basketball tournament, will now take over our TV viewing during the weekends of March. School and office friends are filling out...

Number Sense Sports Grades 5–6
How hard is it to find a 4 leaf clover? (3 Saint Patrick's Day activities)
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...

Algebra Number Sense Grades 2–HS
Just some March Madness math
Just some March Madness math

Today, March 12th, is selection Sunday. Tomorrow we'll know how the college basketball teams are seeded and bracketology can begin. Introduce your students to the meaning and excitement...

Algebra Number Sense Grades 2–HS
Daylight savings time
Daylight savings time

Updated and improved! Is Daylight savings time helpful? How does it make you feel? "Spring forward, fall back" Early Sunday morning, March 12 th at 2 am ,...

Algebra Number Sense Grades 4–HS
Square or Round - which pizza should I buy?
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...

Algebra Number Sense Grades 3–6
Typical Super Bowl scores
Typical Super Bowl scores

Updated for 2023! In this activity students study historical Super Bowl data to reflect on average (mean, median, and mode), losing scores, winning scores, and range of scores....

Algebra Number Sense Grades 5–HS
Powerball, Mega Millions, and probability
Powerball, Mega Millions, and probability

Updated! See the new post by searching "Mega Millions" Adventurer members can access the older version by clicking the "Solutions & supporting material"

Algebra Number Sense Grades 6–HS
Throwing Up
Throwing Up

This year, Buffalo, New York, has had more than 100 inches of snow this winter. We imagine that the height of the tunnel to people's homes is getting...

Algebra Geometry Grades 6–7