School Performance Grades, were issued for the first time in the 2013-14 school year, as required by the North Carolina General Assembly. All public schools in the state have been assigned an A through F letter grade. Eighty percent of school grades are based on the percentage of student tests scores that are at or above grade-level performance, and 20 percent are based on academic growth. To view the report for River Mill Academy, click on the "Read More" button.