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Is this promo a good deal?
Is this promo a good deal?

McDonald's was offering an "Arch Card" special deal. If you bought an Arch Card for $100 you were entitled to a free BigMac or EggMcMuffin every week for...

Number Sense Math and Food Grades 4–6
Hands of Support
Hands of Support

Lorenzo Quinn, an Italian sculptor, created and temporarily installed this piece of art entitled "Support" in Venice. Quinn used his own children's hands to design this piece. His...

Math and Art Ratio and Proportion Grades 5–HS
Population Clock
Population Clock

How in the world does this clock conclude that there is a net gain in the United States of one person every 14 seconds? Have a little care...

Algebra Number Sense Grades 3–7
Water saving toilets
Water saving toilets

How much water is used? How much water could be saved? For Adventurer members we have an editable Word docx and solutions with added world-wide information.

Geometry Math and Science Grades 4–7
Immigration numbers
Immigration numbers

Here's an opportunity to work with calculating percents and the percent changes in the U.S. immigrant population. Students can reflect on what those changes demonstrate. Start your class...

Algebra Math and Social Studies Grades 5–HS
Uh oh!  Am I going to run out of data?
Uh oh! Am I going to run out of data?

Let your students consider the graphic first individually and then in groups of your choosing before handing out the activity sheet. This might be an excellent beginning-of-the-year, get-to-know-each-other...

Algebra Ratio and Proportion Grades 4–7
Should I get the Big One?
Should I get the Big One?

Let your students decide if the BIG one is a fair deal. Which size will they get? Which size offers the most value? Make a guess, then do...

Algebra Math and Food Grades 6–7
Will the new iPhone sales be huge?
Will the new iPhone sales be huge?

Apple just announced their new, 10 th anniversary, iPhones, the iPhone 8 and the iPhone X. These phones will soon be in stores, the iPhone 8 comes out...

Algebra Ratio and Proportion Grades 7–HS
BIG Snickers bar
BIG Snickers bar

Act 1 - Big question = How many times bigger than a regular Snickers bar is this? What info would you like to know? How are you going...

Algebra Geometry Grades 3–6
How much does the biggest Lego set ever cost?
How much does the biggest Lego set ever cost?

Picture from the Verge. Click to see the story. Note: This is a remake of our 2014 " How Much Does a Lego Cost " activity How much...

Algebra Number Sense Grades 5–6
Total solar eclipse - apparent sizes
Total solar eclipse - apparent sizes

Where will the eclipse be seen? What if you are not in the path of totality? Total solar eclipse? What is apparent size? How can the moon seem...

Algebra Geometry High School
Giant iceberg breaks off from Antarctica
Giant iceberg breaks off from Antarctica

The crack in Antarctica's Larson C ice shelf has been growing for years (2017). Has the speed of the rift's growth stayed about the same? increased? decreased? Do...

Math and Science Current events Grades 5–HS