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May 27th launch from the U.S. again
May 27th launch from the U.S. again

May 27 scrubbed because of weather. Successfully launched Saturday, May 30th, 3:22 pm EDT. Dragon is on the way to the ISS now. Wednesday, May 27th will be...

Geometry Math and Science Grades 4–HS
Fish tale, go figure!
Fish tale, go figure!

This activity has been updated: https://www.yummymath.com/post/real-world-math-activities-pythagorean-theorem-fish/ With the subscription, you can still access the previous version of this activity by clicking solutions & supporting materials.

Algebra Geometry Grades 7–HS
Tiny vacuum with a huge reach
Tiny vacuum with a huge reach

From the vacuum description and advertisement in the PDF, how long do you think its cord must be? Thanks to Brian Shoemaker, Newton, MA teacher, for the idea...

Algebra Number Sense Grades 5–HS
Microns and Masks
Microns and Masks

How big is one coronavirus? How big is a micron? How well do these masks protect against the virus? What can you observe about the size of particles...

Algebra Number Sense Grades 3–HS
Stock Market headlines - Biggest losses since 2008
Stock Market headlines - Biggest losses since 2008

This year the Dow Jones Industrial Average made headlines as it dropped in March and April. The Dow is measured in points but this decline can also be...

Algebra Number Sense Grades 5–HS
World record Snickers Bar
World record Snickers Bar

In late January, workers at the Mars Wrigley plant in Waco, Texas created this giant Snickers Bar. It won a spot in The Guinness Book of Records as...

Algebra Number Sense Grades 5–7
Hoarding stopped!
Hoarding stopped!

A Danish market found an interesting way to limit hoarding of hand sanitizer. How much are these costs in your currency? What is the unit price on these...

Current events Ratio and Proportion Grades 5–HS
Pascal coloring and modular math
Pascal coloring and modular math

In this activity students have the opportunity to color as they investigate Pascal's triangle and the many useful patterns that it shows. The triangle is explored for patterns,...

Number Sense Geometry Grades 2–HS
How many delegates does each state get to send to the Democratic Convention?
How many delegates does each state get to send to the Democratic Convention?

Texas gets to send a lot more delegates to the July National Democratic Convention than New Hampshire does. How do they figure out what each state's fair number...

Number Sense Math and Social Studies Grades 5–HS
Gonna be a Leap Year
Gonna be a Leap Year

By George C. Baxley This year we will add the 29th of February to our year? Why do we do that? How can you tell? What if we...

Number Sense Math and Science Grades 4–HS
K-Pop and BTS, how much can they earn from Youtube and Spotify?
K-Pop and BTS, how much can they earn from Youtube and Spotify?

Bring a little K-pop music to your class with this activity. Jason Kibbe, a terrific middle school math teacher in Chambersburg, PA , sent us an activity that...

Number Sense Math and Social Studies Grades 2–6
The Forever Roll
The Forever Roll

That's a big roll of toilet paper! Why would anyone need such a big roll of toilet paper? How does it compare to Charmin's other toilet paper products?...

Algebra Number Sense Grades 4–HS