PBS
Pbs Teachers: Pythagoras and President Garfield
The activity teaches students about the Pythagorean theorem. The resources consists of a definition, examples, and a student activity that investigates and applies the Pythagorean theorem.
New York Times
New York Times: Steven Strogatz on the Elements of Math Series the New York Times
[Free Registration/Login Required] On this site, Cornell University mathematics professor, Steven Strogatz, shares his 15-part series of columns on the elements of math. He investigates topics ranging from negative numbers to subtraction...