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Games with dice
Games with dice

Time to let students become naturally curious about probability. In this activity students work in teams to record the frequency of rolled dice combinations. They observe the difference...

Algebra Number Sense Grades 6–HS
Leicester City Foxes - from underdogs to Champions
Leicester City Foxes - from underdogs to Champions

Recently, to the surprise and elation of England and the world, the Leicester City Foxes became the winners of the British football association's Premier League. What was the...

Algebra Number Sense Grades 5–HS
Flag Art
Flag Art

A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday. In this activity (Flags) students measure; create whole number ratios...

Number Sense Geometry Grades 3–7
Pottytalk
Pottytalk

I'm trying to be more savy about wasting our resources. I have really old fashioned toilets and I'm trying to figure out if I should invest in saving...

Algebra Number Sense Grades 7–HS
Double Discount
Double Discount

Wow, check out this sale! I'm gonna be able to get this great hoodie so cheap! If I use the promo code what will be the total percent...

Algebra Number Sense Grades 5–HS
How did they figure these tips?
How did they figure these tips?

Act I: This restaurant bill has the suggested tips, but they are smudged out. What should they be? Consider having students make a fast 5 to 10 -second...

Number Sense Math and Social Studies Grades 5–7
Figuring planting dates
Figuring planting dates

It's time to get ready to plant my garden again. But here in Boston we have to start our seeds indoors to give them a head start before...

Algebra Number Sense Grades 7–HS
Which is the best deal?
Which is the best deal?

How do you calculate and justify which deal is a better savings? By dollars saved? By percent saved? By some other measure? Looking at 4 different deals, students...

Algebra Number Sense Grades 3–6
How much do the movie tickets cost?
How much do the movie tickets cost?

Ooops! I was supposed to buy 4 adult and 2 children tickets, but I accidentally entered four children and two adults ... :) Can you figure out how...

Algebra Number Sense Grades 7–HS
Giant chocolate bunnies
Giant chocolate bunnies

What can you deduce about these bunnies from their descriptions ... solid? hollow? cost per pound? cost per height? Anything else? For Adventurer members we have an editable...

Number Sense Geometry Grades 5–6
Who can play in this play area?
Who can play in this play area?

We visited a Chic-fil-A recently. We had a great meal and my son loved playing in the play area. While at the play area I noticed two different...

Algebra Math and Food Grades 4–HS
Mark Zuckerberg and Priscilla Chan to give away 99% of their shares of Facebook
Mark Zuckerberg and Priscilla Chan to give away 99% of their shares of Facebook

That sounds like an awful lot of their Facebook shares. They want to help create a better world for their daughter, Max. I wonder if they will have...

Algebra Number Sense Grades 5–HS