Holiday candy sales
This activity has been updated. Please see the updated post:
Ratio and Proportion
Genres
Grade
Population Clock
How in the world does this clock conclude that there is a net gain in the United States of one person every 14 seconds?
Have a little care about younger children when using this activity. T...
Should I get the Big One?
Let your students decide if the BIG one is a fair deal. Which size will they get? Which size offers the most value? Make a guess, then do the math.
Drinks at the Fair
At the amusement park, our friend, Jason, was intrigued with this sign for drink deals. He and his family come often to the park and, during the summer when it is hot, naturally drink a lot. Whi...
New Pirates of the Caribbean (2017) - How profitable?
The fifth Pirates of the Caribbean movie opened on Friday, May 26th ,2017. Your students might be looking forward to seeing this movie and motivated to understand the investment expenses and pr...
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 will need to...
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...
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...
What's with the plovers?
Cute little birds. Piping plovers are nesting on beaches along the Atlantic coast. Consequently beaches are often roped-off or closed to protect their nests and chicks. Is this conservatio...
Bits, bytes, and nibbles
Clicking on the image will show it larger.
I'm not very good at understanding how large my device capacities are and how big the files that I want to download are in comparison. I decid...