Raising the bar
Recovery of the treasure from the 1941 sinking of the S.S. Gairsoppa was recently completed and a huge amount of silver was brought up from the ocean floor. Let your students get a fe...
Algebra
Genres
Grade
Crop circles
In the travel section of our newspaper this week, Wiltshire, England was a recommended destination to see Stonehendge and crop circles ........... crop circles?
Many of the ...
Methane math
Updated! Carbon dioxide and methane are our two most prevalent human-contributed greenhouse gases. This holstein cow is one of many huge contributors to our methane production. &nb...
My teacher says this stream is parabolic. Is he correct?
Instead of asking students to just believe what you've said, why not ask them to verify your assertions? Students plot the points of the stream, perhaps map them with an equation generated b...
Ladder figuring
Brian can't even go to his town's spring festival without seeing math.
Let your class approximate the height or length of this ladder by using the relative size of the cars or the p...
Big gulp
Do you or your students love sugary drinks? What if it were against the law to order a large sugary drink where you lived? On September 13th, 2012 the New York City Health Department ban...
Cicada swarmaggedon
Most of the life cycle of the Magicicada Septendecim is spent underground. Then at 17 year intervals, these cicadas emerge from the ground, climb deciduous trees, molt into a...
Lifespan of a meme, the Harlem Shake
Five friends who skateboard and video tape made up a strange dance one afternoon and filmed it on February 2nd (look it up on youtube!). Now the whole world knows them and their da...
Cruising
There have been a lot of cruise ship mishaps and disasters this year. While these are in the news, let your students consider how these floating cities manage their resources and which of their need...
Snow Days
Here is a picture from a recent snowfall at my house. How Much Snow Did I Get?
Have students make an estimate. Ask them for a guess that is probably a little to...