Memorial Day 2026
Memorial Day is a US holiday observed on the last Monday in May. Who are we honoring? How did the holiday come about? Isn't Memorial Day usually on May 30th? Students learn a little about the his...
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Mother’s Day by the numbers
Mother’s Day is right around the corner, and that means big business for the greeting card, flower, and restaurant industries. In this activity, students calculate the average Mother's Day spendi...
Cost of light bulbs (Updated)
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 deal over time.&nb...
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...
Rapunzel
A live-action remake of Disney's Tangled is now in the works! In this updated activity, students use ratios and proportional reasoning to estimate the weight of Rapunzel's magical hair in the an...
Big Bucks (Updated)
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 will look at so...
The Last Great Race on Earth
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...
The Ultimate Key Lime Pie
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...
Holiday Shipping
Now that the holiday shopping season has begun, it's time to get the packages to your homes. Two big companies take care of a lot of that shipping. How do they manage that? Did you ever wonder h...
Holiday Candy Sales
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 work wi...