NCTM Digital Library of Practice
Reasoning & Sense Making Media Clusters
As part of the effort to improve Reasoning and Sense Making in the classroom, the Council is creating "media clusters" as examples of what reasoning and sense making look like, what is needed to support it, and more.
CCRA - Creating, Critiquing, and Revising Arguments
MUME - Meaningful Use of Mathematical Expression: Call for Submissions for MUME