2023-11-20 09:44:39
Wow, everything must be free!
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 a double discount? Could everything be free?
Comments (0)
Display 1 - 10 Of total 0
Point of view
If you have a set of cubes for your classr...
How much does America spend for Mother’s Day?
Updated in April 2026 with new data; see the answe...
Viral Growth - Talk like a Pirate Day
Sunday, September 19th is "Talk like a Pirate Da...
Groundhog Day
On Groundhog Day (February 2nd), Punxsutawney Phil...
College Costs Keep Going Up
College costs keep rising, and it can be har...
New Mega Millions (probability)
In this activity, students apply their u...
NBA Finals 2026
Teams are competing in the playoffs, and the...
The greatest amount of chocolate
In this updated activity, students compare t...
New bust of King Charles ... in chocolate
Saturday, May 6th 2023 will be King Charles' ...
A geodesic icosahedron, the Times Square New Year's eve ball
Image by kjpargeter on Freepik It's a g...