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Dia de los Muertos
Dia de los Muertos

The Day of the Dead (Día de los Muertos) is celebrated on November 1st and 2nd, right after Halloween. Hot chocolate is a traditional, comforting drink for the...

Algebra Number Sense Grades 5–7
That massive chunk of ice
That massive chunk of ice

A family in Illinois found a 6.6-inch chunk of ice in their backyard after severe storms in March 2026. Students order different hail sizes by comparing fractions with...

Number Sense Science Grades 4–5
Autumnal Equinox
Autumnal Equinox

The Autumnal Equinox will occur on Tuesday, September 22, 2026, at 8:06 pm EDT. It is the time of year when an imaginary plane would pass through both...

Algebra Science Grades 6–8
Back to School Costs
Back to School Costs

Back-to-school spending is huge, and students might not appreciate what it costs to send them back to, essentially, their job of learning. In this activity, students decide what...

Number Sense Social Studies Grades 6–HS
Video Game Consoles
Video Game Consoles

The video game world is constantly changing and improving. With the fairly new products like the PlayStation 5 and the Xbox Series X, we wondered what are the...

Movies and Entertainment Probability and Statistics Grades 5–7
National Donut Day (2 activities)
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...

Algebra Geometry Grades 5–HS
Joe's Tiny New York
Joe's Tiny New York

Joe Macken is a truck driver from upstate New York. Back in 2004, when he was 41, he went into his basement with some balsa wood and started...

Number Sense Math and Art Grades 4–6
Cost of light bulbs
Cost of light bulbs

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...

Social Studies Ratio and Proportion Grades 6–8
The Game of GO
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...

Number Sense Social Studies Grade 8
Rapunzel
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...

Movies and Entertainment Ratio and Proportion Grades 5–7
Pixar vs DreamWorks
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...

Movies and Entertainment Data and probability Grades 6–8
Lunar New Year 2026
Lunar New Year 2026

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...

Number Sense Holidays and Annual Events Grades 4–7