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Spiraling squares - compass and straight edge
Spiraling squares - compass and straight edge

Can you see the many spirals in this design? Students calculate the size of each increasing round of squares and consider what sort of spirals these must be....

Algebra Number Sense Grades 6–HS
Opening Weekend - Avengers: Endgame
Opening Weekend - Avengers: Endgame

Can you tell from its opening weekend how much the new movie, Avengers: Endgame , might earn in theaters? This activity can be used anytime and is especially...

Algebra Current events Grades 7–HS
Value of a lifetime of Whoppers?
Value of a lifetime of Whoppers?

Locked in a smelly bathroom for one hour and then promised a lifetime of Whopper meals 🍔 , an Oregon man sued BK when the manager's promise was...

Algebra Number Sense Grades 4–7
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 6–HS
Choosing the NBA All-Star team
Choosing the NBA All-Star team

The weekend of February 14 - 16 will be all about the NBA All-Stars. The two team captains are Giannis Antetokounmpo (Milwaukee Bucks) and LeBron James (Los Angeles...

Algebra Number Sense Grades 4–6
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 4–6
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 4–HS
Fantasy Football
Fantasy Football

In the midst of another NFL season, we introduce students to Fantasy Football. Students first calculate football points given touchdowns, yardage gains and interceptions. They are then challenged...

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 4–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 5–HS
Madden Glitch
Madden Glitch

It's the talk of the town. Madden video games have had some issues. Check this one out. Here's one that has Le'Veon Bell seeming to fly from the...

Algebra Sports Grades 7–HS
One harrowing adventure
One harrowing adventure

Can you imagine being stuck in the dark for such a long time? How do all of the numbers play out? In this activity, students get a chance...

Number Sense Current events Grades 4–HS