Math Mama Writes...

The Pythagorean theorem tells us that if a and b are the legs, and c the hypotenuse, of a right triangle, then a 2 +b 2 = c 2 . Usually...

In the story I'm writing, Althea remembers a multiplication chart that was posted in their bathroom. It had cool pictures around the edg...

I first read about this history in Journey Through Genius , by William Dunham, in the chapter titled Cardano and the solution of the cubic. ...

My handouts are copied, the piles are organized on my desk. My rosters are printed. (I entered student names into excel, so I can organize t...

I've seen some great advice for the first day of class.  ( Here's the one I've read more than once. I've seen other great i...

I usually try to write blog posts with a point. I don't often have the energy for that lately. But I do want to keep track of how this c...

Our college offers a course that is pretty much the same as high school geometry. I have never before taught it because we only offer i...

126 = 6*21 = 2 * 3 * 3 * 7 If you want to choose 4 chicks randomly from 9 total chicks, there are 126 ways to do it. Students learn mo...

I'll be posting the blog carnival here sometime late next week. Right now I'm beginning to gather links to lovely, playful math ed p...

On the Living Math Forum group, I claimed that Algebra 1 tells a story more than Algebra 2 does. N asked me to explain what I had in m...