Figure This! Math Challenges for Families - Challenge Index. Smarter Balanced Assessment Consortium. Village Math. SurvivalNESA. Virtual Learning Community. The University of Arizona - Institute for Mathematics & Education.
The Common Core State Standards in mathematics were built on progressions: narrative documents describing the progression of a topic across a number of grade levels, informed both by research on children's cognitive development and by the logical structure of mathematics. These documents were spliced together and then sliced into grade level standards. From that point on the work focused on refining and revising the grade level standards. The early drafts of the progressions documents no longer correspond to the current state of the standards. It is important to produce up-to-date versions of the progressions documents.