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Thank you, mother and father, for all of those diapers (Updated)

Algebra Number Sense Holidays and Annual Events
Which is a better deal, cloth or disposable diapers?  How much did you cost your parents in diapers?  In the future, how much could your kid's diapers cost?  Help students realize all t...

Cost of light bulbs (Updated)

Math and Social Studies Ratio and Proportion
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

Algebra Number Sense Data and probability
 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

Number Sense Math and Social Studies
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

Movies and Entertainment Data and probability
 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. ...

Peeps

Number Sense Math and Food Holidays and Annual Events Data and probability
"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...

Pi Day Activities

Geometry Holidays and Annual Events
 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 Ultimate Key Lime Pie

Number Sense Geometry Math and Food Any time math
 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...

Valentine's Day Activities (List)

Holidays and Annual Events
 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. ...

The Most Expensive 30 Seconds

Algebra Sports Holidays and Annual Events
 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...
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