Researchers explored how 13 states in which policymakers have adopted an A-F school letter grade accountability system performed on the National Assessment of Educational Progress (NAEP) post-policy implementation. Researchers found mixed results, with approximately half of these 13 states increasing achievement post-policy, and the other…

The point at which the corners of Arizona, Colorado, New Mexico, and Utah meet is the only spot in the United States where the borders of four states converge. Beyond geography, the Four Corners states share a similar approach to charter schooling. All four states have adopted relatively freewheeling authorization policies, and charter schools…