Nearly half of Florida high schools given an A grade

Grades based on test performance and graduation rates

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TALLAHASSEE, Fla. - Nearly half of Florida's high schools are getting an A grade for the 2012-13 school year.

The grades released Wednesday by the Florida Department of Education show an increase in the number of A graded schools.

[READ: Grades for all Florida high schools]

But the number of D and F rated schools also went up. There were eight high schools that received F grades as opposed to just three in 2012.

Seventeen of Orange County's 19 traditional high schools received A's or B's. The report card showed eight A's, nine B's, and two C's.

In Osceola County, seven schools earned A grades, while one charter school, Acclaim Academy of Florida, earned an "F."

In Brevard County, all high schools received either A's or B's.

In Volusia County, one high school received an "A," 8 high schools received "Bs," and one high school received a "C."  Click here to see a breakdown of Volusia school-by-school.

In Marion County, six out of the eight public high schools improved or maintained their grades and no high school received an "F."

Florida released grades for the rest of its public schools over the summer amid a controversy over the accuracy of the grading formula.

The state has a safety net provision in place that prevents a school from dropping more than one letter grade a year.

The state grades its high schools based on student performance on tests, as well as graduation rates and other factors.

Earlier this year, state elementary and middle schools earned fewer A's and a record number of F's blamed by changes to the grading system, making it tougher for schools to do well.

A revised system will go in effect by 2016.

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