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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 3–5
NBA Finals 2026
NBA Finals 2026

Teams are competing in the playoffs, and the NBA Finals are right around the corner. Let's do a little sports history and data analysis through the context of...

Sports Ratio and Proportion Grades 5–7
Big Bucks (Updated)
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...

Sports Ratio and Proportion Grades 5–6
The Last Great Race on Earth
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...

Algebra Number Sense Grades 4–6
The Most Expensive 30 Seconds
The Most Expensive 30 Seconds

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...

Algebra Sports Grades 7–HS
The huge costs behind the Olympics
The huge costs behind the Olympics

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...

Algebra Math and Social Studies Grades 5–7
Super Bowl Numerals
Super Bowl Numerals

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...

Number Sense Sports Grades 4–7
Fantasy Football (2025)
Fantasy Football (2025)

We're at the midway point of the 2025 NFL season! What a great time to connect math to sports!🏈 In this activity, students use real statistics from recent...

Algebra Sports Grades 5–7
A Parametric Heart
A Parametric Heart

♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥ In this updated activity, students will explore parametric equations to graph a heart shape using sine and cosine functions. Begin...

Geometry Holidays and Annual Events High School
Downside Up
Downside Up

🔍 In this updated activity, students will explore patterns and formulate mathematical relationships through the Canstruction exhibit ‘Downside Up.’ Begin with the starter slides for initial estimation attempts...

Algebra Number Sense Grades 6–HS
A geodesic icosahedron, the Times Square New Year's eve ball
A geodesic icosahedron, the Times Square New Year's eve ball

Image by kjpargeter on Freepik It's a gorgeous ball, covered with Waterford Crystal triangles, shaped as a geodesic icosahedron. Every New Year's Eve it descends in Times Square...

Geometry Math and Science
2023 World Cup Cricket
2023 World Cup Cricket

The Cricket World Cup is being played now (October 5 to November 19, 2023) in India. This is a complex game that is played with enthusiasm and humor....

Algebra Number Sense Grades 5–HS