AchievetheCore.org published an article entitled Key Instruction Shifts of the Common Core State Standards in Mathematics with a focus on K-8 mathematics. The authors first discuss the shift in focus, coherence, and rigor. The document includes key concepts, required fluencies for grades K-6, and delineated content emphasis by cluster for grades K-8.
This is a good resource to consider if you or your organization are working on pacing for K-8 Math. It provides a quick overview for those just becoming familiar with the Common Core State Standards in math as well.
To view the document, click here: bit.ly/ZUAQiz