The Every Student Succeeds Act (ESSA) offers state leaders the opportunity to refocus their education systems on improving opportunity and outcomes for young people who have been underserved for far too long. The law includes a number of important requirements to focus on equity in school accountability, but it also leaves many key decisions up to…

The Student Mobility Index is designed to be a highly sensitive statistic of classroom disruption. The idea behind the statistic is that any student entries or exits to and from a classroom during the year, over however many days, contribute to a disruption of instructional continuity and obstacle to institutional organization. This kind of…