"How many Peeps do you think are sold for Easter in the U.S.?"In this updated activity, students start by making their own guesses for the number of Peeps sold each Easter. They then consider what inf...
The Iditarod Trail Sled Dog Race is an annual event in which mushers and teams of 12-16 dogs race across Alaska from Anchorage to Nome, in the cold and dark of March. It is also known as “The Las...
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...
On a cold and snowy day in Boston about ten years ago, two chefs created a huge Key Lime pie to remind the frozen people of the Northeast how tasty and warm the Keys of Florida are. In this upda...
The 2026 Lunar New Year falls on Tuesday, February 17. In this updated activity, students will explore the unique naming system of the Lunar New Year, which combines the Heavenly Stems and Earth...
Celebrate Valentine’s Day with our activities: Have a heart (Canstruction)Students use reasoning and approximation to analyze the number of cans of food contained in this one giant heart. ...
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...
Hosting the Olympic Games is extremely expensive. In this updated activity, students explore the cost of hosting the Olympics, what a cost overrun (percentage increase) means, and how actual Oly...
On Groundhog Day (February 2nd), Punxsutawney Phil will again, with great ceremony, come out of his burrow and look for his shadow. In this updated activity, students will explore the relative f...
Super Bowl numbers are appearing again! As students start getting into the current Super Bowl hype, help them to understand the notation that the sports writers and advertisements are using. Intr...