Six school districts were honored by the State Board of Education yesterday for improving gaps in student achievement.  Davenport, Fort Dodge, Keokuk, Marshalltown, Norwalk and Waterloo community school districts each received a Breaking Barriers to Learning and Teaching Award, which was created by the State Board of Education to recognize successful efforts to eliminate achievement gaps by improving instruction, curriculum and programs, and professional development opportunities for school staff.  Iowa School Districts Help Reduce Achievement Gap