Graph from Wolfram Alpha
Consumers in the U.S. spend a lot of money. In this activity we look at historical data to see if there are any patterns in our spending. How does our holida...
We ran into this sale online.
Is that advertisement correct? Do they just want us to believe their math and not question what is really 70% off? Is everything or...
Who knew that creams for your face could be so expensive! I'm going to have to rethink what to buy for my mom. Which of these high priced cremes is most expensive?
In this activity st...
This activity can be used in a large range of grade levels. Your class can work on percents, linear equations or piecewise functions.
Act One: We missed the semi-annual sale but we want to get ready...
Check out the TVs. All have essentially the same features, only the size of the screen varies. Which TV do you think is the best deal?
Explore area and unit pricing to determine which H...