Rising Knightdale High students, from left, Grant Thompson, Roldanny Alvarez and Christina Tary experiment with their balloon-propelled cars at freshman camp in 2015. Students could have 40 minutes less sleep this fall under a recommended schedule change that would start classes earlier at 7:25 p.m.
Rising Knightdale High students, from left, Grant Thompson, Roldanny Alvarez and Christina Tary experiment with their balloon-propelled cars at freshman camp in 2015. Students could have 40 minutes less sleep this fall under a recommended schedule change that would start classes earlier at 7:25 p.m. News & Observer file photo
Rising Knightdale High students, from left, Grant Thompson, Roldanny Alvarez and Christina Tary experiment with their balloon-propelled cars at freshman camp in 2015. Students could have 40 minutes less sleep this fall under a recommended schedule change that would start classes earlier at 7:25 p.m. News & Observer file photo