Who can play in this play area?
We visited a Chic-fil-A recently. We had a great meal and my son loved playing in the ...
Algebra
Genres
Grade
How much have doughnuts changed?
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...
Free Flights?
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 in the...
What's with the plovers?
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...
Deflategate
The deflated ball controversy makes an interesting segue into negative number line understanding. A particular digital psi football gauge reads 0 when the ball is at a proper NFL in...
Cost of light bulbs - updated!
Algebra
Number Sense
Math and Science
Math and Social Studies
Ratio and Proportion
Data and probability
There's a lot of misinformation out there about the cost to consumers of CFL and LED bulbs and the savings in energy and money that could be realized.
Let your students "do the math" and realiz...
Parabolic Pee
Mr. Mark's new little baby can make some amazingly tall streams.
Give your class a little chuckle as you introduce them to parabolic motion with this very short analysis of Mr. Mark's baby's...
QR codes
Your students have probably seen these images around and might not know why they are becoming popular for smart phone scanning ... and possibly dangerous. Students figure out the n...
Why Does it Stay in Orbit?
On Monday, the space shuttle Endeavor launched for the last time. The six astronauts on board docked this morning at the International Space Station to join the 6 astronauts and cosmonauts who l...
Chocolate Milk and Mixture
Image by FreepikChemistry experiments and algebra problems sometimes ask students to create percent mixtures or to change a mixture into a stronger or weaker solution by adding more of an...