Applet:
The Blog of a K-8 Math Specialist
Devoted to free calculus resources for students, free and open source materials for instructors, and active engagement for all.
A Weekly Digest of the Mathematical Internet
My Irrational Life
Random thoughts about teaching math
Trying to change attitudes and perceptions about math, one middle schooler at a time.
"Never!"
mathematics + music
Supporting children’s early mathematical development
A great WordPress.com site
in search of innovative ideas with a well-balanced approach for the math classroom
Innovative math lessons you can use in your classroom today
learns and observes
Just an attempt to be better...
Ramblings of a HS Math Teacher
I have no idea why I picked this blog name, but there's no turning back now
Helping all to find their inner math nerd, even if you didn't know you had one.
The greatest WordPress.com site in all the land!
Megan Schmidt's Reflective Blog about teaching, mathematics, and sometimes beagles.
Transformulas 
One thought on “Sum it up Angle Addition: Part 2”