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 ...
Geometry
Genres
Grade
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...
Twinkies
Brian loves Twinkies and the news that Hostess is going out of business has upset him terribly. He needs his Twinkies. Twinkies last forever. Right? He's going ...
Is this possible?
Brian Shoemaker, a Newton, MA mathematics teacher, saw this Dunkin Donuts Mazda traveling down the road.
He wondered if that size coffee cup could really have coffee in it. &nbs...
What time is it in Cambodia?
I need help! My daughter is traveling in Cambodia and we are supposed to Skype just before her dinner time in Phnom Penh, Cambodia. What time is that here in Boston?Let you students ...
Storm cleanup
This activity could be used as an introduction to trig ratios. Students figure out the approximate length of the huge branch that I have to fell for safety and firewood. After approximating ...
Valentine's Cardioid
WojciechSwiderski at the Polish language Wikipedia
Happy Valentine's Day!
This PDF contains four ways students can draw cardioids for Valentine's Day.
There is no solu...
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...
Benoît Mandelbrot
In October, 2010, Benoît Mandelbrot died in Cambridge, Massachusetts. To honor his life and work in fractals and natural recurrence, we've created an investigation that teaches students a little a...