5 +/- 1 teachers share their top ideas for the classroom:
1. @ChrisHunter36 (Chris Hunter): Cooperative Problem Solving
2. @chris_harrow (Chris Harrow): Four 4s: Mathematical Creativity For All Ages
3. @bobloch (Bob Lochel): Tall Tales in Probability
4. @gfrblxt (Mike Thayer): Why Music Is My Favorite Way To Teach Sinusoids