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
Death Valley, CA - How hot was it?
This picture may have been Photo...
It's Girl Scout cookie time again!
Let your students talk about...
Fine
TJ Watt was fined for roughing the ...
How many movies can you see in one day?
Robert Kaplinsky at robertkaplinsky.com shared thi...
Giant chocolate bunnies
What can you deduce about these bunnies f...
Earth Day Actions for Our Planet (April 22)
We have 16 activities that you cou...
Pi Day Activities
5 Activities for π day!  ...
How Much is a Tweet Worth?
These days it seems everyone is on social ...
Labor Day 2025
In our usual Labor Day activity (updated for...
Fantastic Beasts - What did it cost to make?
In 2001, J.K.Rowling (the author of the Harry ...