Published: Feb 22, 2012 5:16 PM EST

TALLAHASSEE, Fla. (AP) - School superintendents say proposed changes to Florida's school grading system would be unfair and cause needless failures.
    
The Florida Association of District School Superintendents outlined its objections Tuesday in a letter to Education Commissioner Gerard Robinson.
    
The group wrote that it supports increased accountability but many proposed changes go too far.
    
The superintendents contend they would particularly harm schools that serve low-income and minority neighborhoods and undo efforts to win community support.
    
Among the examples they cited is a proposal to automatically fail a school based on a low reading proficiency score even though it may otherwise have an overall passing grade.
    
The superintendents also objected to holding home schools accountable for the performance of students after they have been sent to alternative schools or special education centers.

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