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Who can play in this play area?
Who can play in this play area?

We visited a Chic-fil-A recently. We had a great meal and my son loved playing in the play area. While at the play area I noticed two different...

Algebra Math and Food Grades 4–HS
Mark Zuckerberg and Priscilla Chan to give away 99% of their shares of Facebook
Mark Zuckerberg and Priscilla Chan to give away 99% of their shares of Facebook

That sounds like an awful lot of their Facebook shares. They want to help create a better world for their daughter, Max. I wonder if they will have...

Algebra Number Sense Grades 5–HS
What's your favorite sport?
What's your favorite sport?

What is your favorite sport? Wait, do I mean your favorite sport to play or your favorite sport to watch? Does it matter? Are your favorite to-watch sport...

Algebra Number Sense Grades 4–HS
How much have doughnuts changed?
How much have doughnuts changed?

Part of the Smithsonian's Sally L. Steinberg Collection of Doughnut Ephemera -- Click on the image to see it larger. When you are working on volume in your...

Algebra Number Sense Grades 7–HS
How Much is a Tweet Worth?
How Much is a Tweet Worth?

These days it seems everyone is on social media. Are you? Famous athletes and entertainers are on social media and they can make a lot of money. In...

Algebra Number Sense Grades 5–HS
What's with the plovers?
What's with the plovers?

Cute little birds. Piping plovers are nesting on beaches along the Atlantic coast. Consequently beaches are often roped-off or closed to protect their nests and chicks. Is this...

Algebra Number Sense Grades 6–HS
How Many Donuts is That?
How Many Donuts is That?

Act One: Take a look at the first picture (Krispy-Kreme-photos). What is the first question that comes to mind? How many donuts is that? What information would be...

Number Sense Geometry Grades 3–6
Growth of Facebook
Growth of Facebook

In this activity, students analyze and graph the numbers and decide if Facebook's growth in the first 20 years has been linear, exponential, meteoric, or something else. Will...

Algebra Number Sense Grades 6–HS
California water measurements - chains, links, and furlongs
California water measurements - chains, links, and furlongs

Help your students understand what they are reading or hearing about the California drought. Terms like acre-feet, chains, and furlongs are often used to describe the volume of...

Algebra Geometry Grades 4–7
Chili Con Queso
Chili Con Queso

A ct 1: Take a look at the promo at Moe's. What is the first question that comes to mind? How much does a 42-gallon jug of Chili...

Number Sense Math and Food Grades 4–5
Which Sweet Hearts are the Best Deal?
Which Sweet Hearts are the Best Deal?

I have been doing a little shopping for Sweet Heart Candies. I came across these three deals online. Which should I select? In this activity, students determine which...

Algebra Number Sense Grades 5–6
Deflategate
Deflategate

The deflated ball controversy makes an interesting segue into negative number line understanding. A particular digital psi football gauge reads 0 when the ball is at a proper...

Algebra Number Sense Grades 5–HS