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The Olympic Torch trip in South Korea

Social Studies Sports Current events Ratio and Proportion Probability and Statistics
On October 24, 2017, the Olympic flame was captured on Mount Olympus, Greece. That flame lit one of this year's Olympic Torches and the Torch relay was begun on its way to the opening Winter Olympic...

Is this promo a good deal?

Number Sense Food Ratio and Proportion Probability and Statistics
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 a full year. The card was only offered a...

Population Clock

Algebra Number Sense Ratio and Proportion Probability and Statistics
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 about younger children when using this activity. T...

Water saving toilets

Geometry Science Ratio and Proportion Probability and Statistics
     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.

Uh oh! Am I going to run out of data?

Algebra Ratio and Proportion Probability and Statistics
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-kn...

Layla's antibiotics

Number Sense
  Layla The dosage of Layla's medication was confusing to our friend Kim.  How many days was she supposed to give Layla the meds?   How many pills does she need to cut into pie...

BIG Snickers bar

Algebra Geometry Food 3-act tasks Wow factor
  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 to judge how much bigger this ...

How much does the biggest Lego set ever cost?

Algebra Number Sense Ratio and Proportion 3-act tasks Probability and Statistics
  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 could the...

Giant iceberg breaks off from Antarctica

Science Current events Ratio and Proportion Probability and Statistics
       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? dec...

Measuring sea level

Algebra Number Sense Geometry Science Ratio and Proportion Probability and Statistics
What does this gizmo do? We've given students a diagram of what the interior of this mechanism contains and asked them to try to decide what its purpose must be. Then we've...
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