Number Sense

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How much do the movie tickets cost?

Algebra Number Sense
Ooops! I was supposed to buy 4 adult and 2 children tickets, but I accidentally entered four children and two adults ... :)  Can you figure out how much a child's ticket and an adult ticket...

Giant chocolate bunnies

Number Sense Geometry Math and Food Holidays and Annual Events Ratio and Proportion Data and probability
What can you deduce about these bunnies from their descriptions ... solid? hollow? cost per pound? cost per height? Anything else? For Adventurer members we have an editable Word d...

The Game of Go

Number Sense Math and Social Studies
March 9th was the first round of the competition between Lee Se-dol, one of the World's best Go players, and Google's artificial intelligence program "AlphaGo".  The first and sec...

Temperature change (Discussion Prompts)

Number Sense Math and Science
    Note: This is not intended as a comprehensive activity with solutions. Instead, it serves as a discussion prompt. Have fun! It's been a crazy winter of extremes through much o...

How Many Pennies did Otha Save?

Number Sense Geometry 3-act tasks Data and probability
Otha Anders used picking up pennies as a way to remember to pray.  In this 3-act activity we try to estimate how much he actually collected and stored in 5 gallon water jugs. This ...

Mark Zuckerberg and Priscilla Chan to give away 99% of their shares of Facebook

Algebra Number Sense Math and Social Studies Ratio and Proportion
  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 enough left over to live on? The...

How much have doughnuts changed?

Algebra Number Sense Geometry Math and Food
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 class, you can use this activi...

How Much is a Tweet Worth?

Algebra Number Sense Math and Social Studies Sports Ratio and Proportion Data and probability
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 this activity students study how ...

Free Flights?

Algebra Number Sense
This can't be right!  If my flight cost $200 and I stayed for 10 days it would be free.  Right?  You can kick off this activity by asking students to think about where ...

What's with the plovers?

Algebra Number Sense Math and Science Ratio and Proportion Data and probability
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 conservatio...
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