Tiny vacuum with a huge reach
From the vacuum description and advertisement in the PDF, how long do you think its cord must be?
Thanks to Brian Shoemaker, Newton, MA teacher, for the idea and pictures.
Geometry
Genres
Grade
World record Snickers Bar
In late January, workers at the Mars Wrigley plant in Waco, Texas created this giant Snickers Bar. It won a spot in The Guinness Book of Records as the World's largest Snicker's Bar.
Wh...
Pascal coloring and modular math
In this activity students have the opportunity to color as they investigate Pascal's triangle and the many useful patterns that it shows. The triangle is explored for patterns, coloring...
How steep is this treadmill?
Photo from the Onion, America's Finest New Source. Women on Gym Treadmill Cranks Incline up to 90 Degrees
This is a very short activity designed to give students a more visual underst...
The Forever Roll
That's a big roll of toilet paper! Why would anyone need such a big roll of toilet paper? How does it compare to Charmin's other toilet paper products? If this roll lasts for...
How long will it take you to trick-or-treat?
It's Halloween and this is your neighborhood. How long will it take you to trick or treat at every house in your neighborhood?
Possible conversation with students:
How long will it take yo...
Make a costume from a sheet
Whoops! Maybe I need a larger sheet.
I'm going to make a costume pattern to sell. People can buy my plan and make awesome, long, full, scary, ghost costumes. This scheme...
Largest coffee, new world record
The world record for the largest cup of coffee was recently set (see picture above). In this activity students explore scale, similar figures, volume and measurement as they estimate the...
Point of view
If you have a set of cubes for your classroom, this would make a great group hands-on project. Its an old puzzle but the activity deserves a revisit.
Below are two straight-on images of my ...
Spiraling squares - compass and straight edge
Can you see the many spirals in this design?
Students calculate the size of each increasing round of squares and consider what sort of spirals these must be.
Working wit...