From a national standpoint, the 20-year-old charter school movement has been a disappointment. More than a third of these independently run, publicly funded schools are actually worse than the traditional public schools they were meant to replace. Abysmal charter schools remain open for years, even though the original deal was that they would be shut down when they failed to perform. New York City’s experience, however, continues to be an exception.
For the second time in three years, a rigorous study by Stanford University’s Center for Research on Education Outcomes shows that the typical New York City charter school student learns more in a year in reading and math than his or her peers in their neighborhood district schools. The difference, over a typical year, amounts to about a month’s more learning in reading — and a whopping five months’ more learning in math.