Fast Growing Plant
Students look into a plant that doubles in height every month and work out a rule for its height at any point, then run that rule backwards to discover why a positive number raised to a negative...
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All you can eat for 10 cents
The history of the Dairy Queen franchise began with this ad in Illinois in 1938: All the ice cream that you can eat for only 10 cents! We know that 10 cents was worth more in the past, but was it...
National Donut Day (2 activities)
Friday, June 5th, is National Donut Day. We have 2 activities to support this silly holiday. How much have doughnuts changed? Students become familiar with the word "torus"...
Hybrid, Electric or Gasoline
Gas prices are up, EVs are everywhere, and hybrid technology keeps improving!So which car is better? Which car would you/your family choose? Students compare the latest prices (updated) of a hyb...
The Game of GO
In March 2016, Lee Se-dol, one of the world's best Go players, and Google's artificial intelligence program "AlphaGo" had their first match. (Watch the incredible Documentary) Exactly 10 years la...
Pixar vs DreamWorks
Animated films are a billion-dollar industry. The two biggest producers of animated films are DreamWorks and Pixar. The two have been going head-to-head for more than ten years now. ...
Pi Day Activities
5 Activities for π day! What is π? The logic of finding the perimeters of inscribed and circumscribed polygons as the number of sides to the polygons increases. Good in...
The Most Expensive 30 Seconds
This year, the 30-second Super Bowl ads will cost about 8 million dollars! Do you wonder how much one ad will cost next year? In 5 years? In 10 years? 🏈In this activity, students explore ho...
2026
As the new year approaches (where did the time go!!?), our annual activity has students explore not-so-common number categories to investigate whether 2026 fits into any of these. What is a Hars...