This rule establishes procedures for implementing Florida’s system of school improvement and accountability – specifically, Florida’s school grading system as required by Section 1008.34, Florida Statutes. The amendments modify the proficiency criterion for the FCAT writing portion of school grades from 3.5 to 4.0 or higher. In addition, the amendments incorporate the 2009-10 Guide to Calculations for Florida’s Public High School Graduation Rate in place of the 2008-09 version of the document. The amendments delete portions of the rule addressing differentiated accountability.