Effective teachers are demonstrably the most important resource schools have for improving the academic success
of their students (Hanushek and Rivkin 2006; Rice 2003).
All 50 states and the District of Columbia have built digital
warehouses and filled them with academic data for every public school
child, but many states are not adequately sharing the informa
Highlights from a survey by Common Core and the Farkas Duffett Research Group Sponsored by the Ford Foundation and the American Federation of Teachers.
