School grades are assigned to schools based on the criteria established by the legislature and the State Board of Education. The grades are awarded annually. Each school level, elementary schools, middle schools, high schools and combination schools have different formulae for calculating grades. Because of the criteria used, school grades are received at different times during the year. Generally, elementary, middle and some combination schools are assigned in the summer. High school grades are assigned the fall of the year following the graded year. This delay is necessary to gather data from external sources such as the College Board.
In addition to School Grades, the district is assigned a district grade by aggregating the data used in the individual school grades at the district level.