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Big gulp
Big gulp

Do you or your students love sugary drinks? What if it were against the law to order a large sugary drink where you lived? On September 13th, 2012...

Algebra Number Sense Grades 5–7
Cruising
Cruising

There have been a lot of cruise ship mishaps and disasters this year. While these are in the news, let your students consider how these floating cities manage...

Algebra Number Sense Grades 4–7
Twinkies
Twinkies

Brian loves Twinkies and the news that Hostess is going out of business has upset him terribly. He needs his Twinkies. Twinkies last forever. Right? He's going to...

Number Sense Geometry Grades 4–6
Is this possible?
Is this possible?

Brian Shoemaker, a Newton, MA mathematics teache r, saw this Dunkin Donuts Mazda traveling down the road. He wondered if that size coffee cup could really have coffee...

Algebra Number Sense Grades 6–HS
Linsanity
Linsanity

Jeremy Lin is the New York Knicks most startling player. His story is exciting in that he graduated from Harvard in 2010 and was not immediately drafted into...

Algebra Number Sense Grades 5–6
Valentine's Cardioid
Valentine's Cardioid

WojciechSwiderski at the Polish language Wikipedia Happy Valentine's Day! This PDF contains four ways students can draw cardioids for Valentine's Day. There is no solution for this activity...

Geometry Holidays and Annual Events Grades 6–HS
Chocolate Milk and Mixture
Chocolate Milk and Mixture

Image by Freepik Chemistry experiments and algebra problems sometimes ask students to create percent mixtures or to change a mixture into a stronger or weaker solution by adding...

Algebra Math and Food Grades 7–HS