A Teacher, a Text and a Culture

I've nearly come to the end of a complete revision of my geometry course. Take a look .

I'm a Common Core convert. Here in Indiana, they're a real improvement over the standards they replace. I've compiled a list of ...

The Triangle Exterior Angle Inequality (TEAI) does much of the work in the proofs to come. Let us prove it first. Triangle ABC is given. W...

I've had the intent for some time now to do a little  non-Euclidean geometry with my students. I didn't want it to be mere histor...

I'd like a short, pithy answer, but I don't have one. The best that I can do is talk around the question. I'll have as much to s...

Who doesn't like beautifully formatted mathematics? Latex is the standard.  The question is how to get Blogger to recognize and then ...

I've been a good little boy this summer. I've been at work on a complete overhaul of my geometry class. It's almost done. It...