How fast can you run?
Have you heard of The Six Million Dollar Man? He was the character in a science fiction show about an astronaut that was rebuilt, bionically, after his space ship crashed. He could run a...
Number Sense
Genres
Grade
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 a full year. The card was only offered a...
Holiday candy sales
Which holidays are associated with candy?
For which of those holidays is the most candy sold?
What percents of annual candy sales does each holiday contribute?
Consider using some in...
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 about younger children when using this activity. T...
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 could the...
Proposed southern border wall
You have probably heard about the proposed border wall that may go up along the U.S./Mexico border. How much wall needs to be built? How much will that cost? What is that per mile? Per foo...
Measuring sea level
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...
Giant iceberg
Ferryland, Newfoundland. JODY MARTIN / REUTERS
Over the past Easter weekend this giant iceberg drifted passed Ferryland, Newfoundland. Its hard to tell how large it actually is but...
April's calf was born!
At about 10:00 am, April 15th, April's calf was born. Everyone will be talking about it and smiling constantly.
Here's some fun math stuff to bring with you for Holiday gatherings.
Patriots' Day
In Massachusetts, Monday April 15th, 2019, will be a holiday from school and work. We celebrate Patriots' Day on the 3rd Monday in April to commemorate the beginning of the Revolutionary War a...