Green noted that letter grades measure achievement and growth. "When you score consistently 80 percentile or above, it's hard to show growth," he said. "So that is a concern that we have. We always want our students to achieve to their highest ability."
Green added that the school grading system is "as good as any system that they have had to date."
"But they have to always take into account that things happen during a child's school day that cannot be represented on a test one time per year," he said. "So do I think they are completely accurate? No, and the example I give is our middle school grade. Is there room for improvement on the way the DOE grades schools? Yes. Is there room for improvement on the education that we provide children on a daily basis? Yes. So public education can always do better for children at every level."
-- The Associated Press contributed to this report.
A-F accountability Beginning with the 2010-11 academic year, the State Board of Education changed the labels for school categories based on student performance from the terms Exemplary, Commendable, Academic Progress, Academic Watch and Academic Probation to easy-to-understand letter grades (A, B, C, D and F). Indiana's A-F model holds schools and corporations to higher standards and provides a more accurate picture of their performance by incorporating student academic growth and graduation rates, as well as college and career readiness, as measures of success. To find this year's results, visit http://www.doe.in.gov/accountability/f-accountability