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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...
With incandescent and halogen bulbs banned since 2023, students compare CFL, LED, and Smart LED bulbs, calculate energy use in kilowatt-hours, and determine which bulb is the better...
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...
In 2025, Cristiano Ronaldo signed a jaw-dropping 2-year deal worth over $710 million, making him the highest-paid athlete per year in sports history. In this updated activity, students...
"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...
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...
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...
In this activity, students will analyze U.S. holiday candy sales percentage data (updated) to calculate the approximate amount spent on candy for each holiday. Students are encouraged to...
🎃October is the time of year when giant pumpkin contests take place all over the world, and the pumpkins just keep getting bigger and bigger! In this activity,...
In this updated activity, students compare three chocolates that look almost the same size to see which one actually gives the most chocolate. Depending on their grade level,...
What is a typhoon, and how are they measured? In this activity, students learn about the recent typhoon (Typhoon Rasaga), storm rankings, and severity while practicing unit conversions...
In 1980, A&W offered a bigger and tastier burger to compete with another famous burger brand, but the sales were not successful at all. What could have gone...