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Can this possibly be True?
Can this possibly be True?

This activity is being updated =). Could this possibly be true? What is reasonable? How do you check? Do you believe everything that you hear or read? Do...

Number Sense Math and Science
How long would it take to build this underground house and pool?
How long would it take to build this underground house and pool?

The building of this underground house and pool was presented by Cayote Person and his partner, Mark Lavins, on their youtube channel, "Brave Wilderness." At BraveWilderness.com the business...

Algebra Number Sense Grades 5–HS
President's Pay for Presidents' Day
President's Pay for Presidents' Day

You can't run for President now, but heck, 2036 is right around the corner. Being President of the United States will be quite an accomplishment and a ton...

Algebra Number Sense Grades 6–HS
Pythagorean Triples and coloring
Pythagorean Triples and coloring

Pythagorean triples are not only handy for students to recognize but produce some interesting and lovely patterns. We've combined a little coloring with our Pythagorean Triple pattern investigation...

Algebra Number Sense Grades 7–HS
V-o-r-t-e-x
V-o-r-t-e-x

Weather temp eratures have been extreme in the World lately. Australia is experiencing an unprecedented heat wave and the U.S. is experiencing a Polar Vortex. Let your students...

Number Sense Math and Science Grades 5–7
Huge diamond found in Canada
Huge diamond found in Canada

552-carat diamond found in Diavik Mine, Northwest Territories, Canada Can you tell just how big this gem is? Do you know how big a carat is? What would...

Number Sense Geometry Grades 5–HS
New Horizons spacecraft just flew by a really distant asteroid
New Horizons spacecraft just flew by a really distant asteroid

Brian May, the lead guitarist of the rock band, Queen, is also an astrophysicist and one of the science team collaborators of the New Horizons space program. The...

Algebra Number Sense Grades 5–HS
Sol LeWitt's pyramid - How might you count those blocks?
Sol LeWitt's pyramid - How might you count those blocks?

Sol LeWitt, Four Sided Pyramid, 1999, Hirshhorn Museum Sculpture Garden, Washington DC Sol LeWitt (1928 - 2007) was a an American artist involved in Conceptual art and Minimalism....

Algebra Number Sense Grades 5–HS
Nike's latest bet
Nike's latest bet

Nike has just chosen a surprising person to represent the 30th anniversary of their slogan, "Just Do It". Colin Kaepernick, past quarterback of the San Francisco 49ers, has...

Algebra Number Sense Grades 6–HS
Encouraging bats might be better than using bug repellant
Encouraging bats might be better than using bug repellant

Bats eat mosquitoes ... lots of mosquitoes. Students compare a bat's weight to how much he can consume in one night. They calculate how much they would need...

Math and Science Ratio and Proportion Grades 6–7
Fibonacci coloring
Fibonacci coloring

Let your students simply enjoy coloring our designs or artistically play with the whole creation of Φ designs. Simply coloring our Fibonacci patterns might allow students to ponder...

Algebra Number Sense Grades 4–HS
More eruptions on Hawai'i's Kilauea
More eruptions on Hawai'i's Kilauea

The Volcano Kilauea is continuing to spew molten lava and ash on the island of Hawai'i. This volcano is on the tip of the southern most Hawaiian Island....

Algebra Geometry Grades 4–8