Steve Barr is said to be leaving his chairman of the board post to focus on "national education issues."
The districts say banning minimum-grade policies will make it harder for students to catch up.
Boston Public Schools targets 14 underperforming schools for serious restructuring.
Leslie Jacobs, a former member of the state board of education and the city school board and an architect of the post-Katrina education landscape in the city, will run for mayor.
The students want to leave Fenger High School, which made headlines after one of its students was beaten to death this fall a few blocks away.
The Dallas school district is recovering from overspending that led to teacher layoffs.
Michelle Rhee says she'd feel "very responsible" if Mayor Adrian Fenty isn't re-elected.
A study of eight programs that allow city students to transfer to the suburbs concludes these desegregation efforts can close the achievement gap.
School districts' buy-in to state reform plans is key to winning a federal grant.
One of the rules for labor-management cooperation is "never surprise your union," a district leader said.