Math Blog

http://www.actionmath.com/blog/MathPlayground.html

I came across this when I discovered the symmetry game above. It could be called "inside the mind of a math teacher." Colleen, the writer, poses interesting math problems she has done with her students and talks through what her students did with the problem and what that showed about their level of understanding. The articles are sure to interest elementary math teachers, but also parents who want to help their kids thinking mathematically and go beyond mechanics.

The blog is only about two months old but I hope she keeps it up.