Amends GS 115C-83.15 to change the weights of school achievement score and school growth score, in determining the school performance score and grade, to 50% of the school performance score each (currently 80% school achievement score and 20% school growth score). Provides that schools which receive a performance letter grade of B or lower on their school report card, which also exceed growth, must have their performance grade raised by one letter by the State Board of Education.

Directs the State Board of Education to create a task force within the Department of Public Instruction to study the school performance grading system, considering other states' methods and additional school performance indicators that may be more accurate. Directs the State Board of Education to report its findings, including recommendations and legislative proposals, to the Joint Legislative Education Oversight Committee by December 15, 2017.

Applies beginning with the 2017-18 school year.