Edutopia – Jeannie Curtis 
Walk into a classroom in the middle of a math talk and you’ll see the students gathered in a circle, taking turns showing each other math strategies and questioning each other about the accuracy and efficiency of their solutions. The students are sharing thoughts about a single high-quality math problem they worked on solving earlier in the period without teacher guidance. They are processing the math in a different way than when they worked with paper and pencils, manipulatives, and drawings. (more)