New York City’s School Grades

Jennifer Medina:

The A-through-F grading system for New York City schools is billed as a public information tool, helping people sort out which schools are teaching children and which schools are just moving them along. Instead of inscrutable education jargon and endless score charts, the letter grades act like billboards broadcasting achievements and failures.
But for parents shopping for the best schools, the letter grades can obscure some of the most salient information, because they are determined largely by how much progress students make year to year rather than how well their skills stand up against objective standards.
While the question of how effective teachers are at moving students forward is a critical one for their bosses, many parents are equally interested in which schools are most likely to, say, have students reading at grade level or ensure that sophomores are mastering algebra. The heavy emphasis on peer comparisons to schools serving similar populations is clearly a fairer yardstick for educators, but it can hide schools burdened by particularly challenging demographics.