for
Jonathan Beal
I am also at Facebook and Twitter.
The Program of Mathematics Education
MacTutor History of Mathematics Site  St. Andrew's University
Math Forum (alias Geometry Forum)
Exponential Function

Perplexing Parabolas 
XA Plane 
Concurrenting Altitudes Connectively 
Pa, Now that I Got a Toolbox, I Need Some Tools to Put in It!

Picture, Picture, on the Wall: What's the Best Angle to See You All?

And Around, Around We Go!

Where Am I? This Isn't the Triangle I Fell Asleep In! 
When I Put P in the Center, Nobody Fusses. 
Wow, Look at the Curves on That One!

"Brrr.....It's Cold in the Polar Equations" 
I Can Afford This Van Down By the River 
Final Assignment
Bouncing Barney Brokers Bad Brew in the Back of the Black Buick.
I will Be Home at 8 only if I Can Fit in the 5.