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 off?
Number Sense
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Grade
Will college be affordable?
Whether you or one of your siblings is going off to college next fall, it is useful to know how much colleges cost. Not going to college this fall? No worries, we can use the informa...
David Price, big bucks per ...
David Price, a 30-year old pitcher from Toronto's Blue Jays, was hired with a 7 year contract to be the Red Sox's new ace pitcher for $217 million dollars. That is the largest amount eve...
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 we can put plants outside. How should I fi...
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 much a child's ticket and an adult ticket...
The Game of Go
March 9th was the first round of the competition between Lee Se-dol, one of the World's best Go players, and Google's artificial intelligence program "AlphaGo". The first and sec...
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 enough left over to live on?
The...
How much have doughnuts changed?
Part of the Smithsonian's Sally L. Steinberg Collection of Doughnut Ephemera -- Click on the image to see it larger.
When you are working on volume in your class, you can use this activi...
Oreo Stuffiness
There is yet another Oreo...
This activity builds off the work that Dan Anderson's math class revealed about Original Oreos and Double Stuff Oreos. Students begin by working with the weight of just...
How Much is a Tweet Worth?
These days it seems everyone is on social media. Are you? Famous athletes and entertainers are on social media and they can make a lot of money. In this activity students study how ...