Wow, everything must be free!
What happens when you take 50% off again after taking 50% off at first?
Students examine this retailer trick of giving double discounts. What happens to the price when you are given...
Data and probability
Genres
Grade
President's Pay for Presidents' Day
You can't run for President now, but heck, 2036 is right around the corner.
Being President of the United States will be quite an accomplishment and a ton of work. But, how...
Huge diamond found in Canada
552-carat diamond found in Diavik Mine, Northwest Territories, Canada
Can you tell just how big this gem is? Do you know how big a carat is? What would this look like on a ring on you...
One harrowing adventure
Can you imagine being stuck in the dark for such a long time? How do all of the numbers play out?
In this activity, students get a chance to talk about the experience of this ordea...
Cost of hosting Olympic games
Hosting the Olympics sure does cost a lot. Why is that? How much money is $5 billion dollars? What is a cost overrun? Why would a country want to spend that much money to host and Olympic Game...
Hands of Support
Lorenzo Quinn, an Italian sculptor, created and temporarily installed this piece of art entitled "Support" in Venice. Quinn used his own children's hands to design this piece. His in...
Holiday candy sales
This activity has been updated. Please see the updated post:
Water saving toilets
How much water is used? How much water could be saved?
For Adventurer members we have an editable Word docx and solutions with added world-wide information.
Immigration numbers
Here's an opportunity to work with calculating percents and the percent changes in the U.S. immigrant population. Students can reflect on what those changes demonstrate.
Start your class with this ...
Uh oh! Am I going to run out of data?
Let your students consider the graphic first individually and then in groups of your choosing before handing out the activity sheet. This might be an excellent beginning-of-the-year, get-to-kn...