Teachers have the greatest school-based effect on the achievement of any child in their classrooms, but highly effective principals can positively affect the achievement of every student in their schools. The difference between a highly effective principal and an average one is equal to two-to-seven months of extra learning per year for each child…

Created by the U.S. Congress in 2006, the Teacher Incentive Fund (TIF) represents the first federal initiative targeted directly at state and district efforts to introduce performance measures into educator compensation. TIF responds to a growing body of evidence that existing pay structures do not respond to labor force realities or adequately…