Water is flowing out of Pipe A at a rate of …
Art Photography
Math Art: Suspended Solids
These are Martin Levin’s Platonic Solid sculptures , on display at the 2012 Bridges Math and Art Conference at Towson University.
Read more about the artist and his work here.
Teaching Testing
This is Still Not a Trig Function
An amazing discussion emerged the last time a purported trigonometric graph appeared on a NY state Regents exam. So I was very excited to see a trig graph on a January 2013 Regents exam.
So, is this a trig function?
Not quite!
Maybe next time.
Related Posts
Challenge NYT
Math Quiz — NYT Learning Network
Through Math for America, I am part of an ongoing collaboration with the New York Times Learning Network. My latest contribution, a Test Yourself quiz-question, can be found here:
Test Yourself Math — March 18, 2013
The question deals with massive open online courses (MOOCs) and the online test-proctoring companies that supervise student exams via webcam. How much could such a company make from a single MOOC?
Appreciation Art Photography
Math Photo: Proper Penrose
I’m greatly enjoying my Penrose Magnets. And I’m following the rules this time!




