“Redshirting” five-year-olds may do more harm than good, concludes a study published in Education Next. The academic advantages of being older disappear by high school, write Diane Schanzenbach, a Northwestern education professor, and Stephanie Larson, director of Rose Hall Montessori School in Wilmette, Illinois. “Redshirted children can be educationally and socially harmed by being with others who are performing and behaving at lower developmental levels.” Younger students