The debate over the performance and value of charter schools is hardly going to be resolved with one new set of data, but it is worth looking more closely at how charters did in the city’s recent school progress reports.
Gary Rubinstein, a city schoolteacher who has his own blog, did
">just that. He notes that charters did worse than traditional schools in the Education Department's "progress" category.
Here's a complete "Charter vs. Non-Charter" breakdown of grades in all categories: Overall Grade, Environment, Performance and Progress.
It should be noted that there is a potential pitfall with this type of comparison. We are comparing the distribution of grades among 68 charter schools with the distribution of grades among 1,040 traditional schools. This basically means that in the charter school groups, a very small number of schools can have a big impact on the percentages.
That being said, while Mr. Rubinstein is certainly correct that the charters did worse in the progress category, they also did much better in the other two areas, and as a result, the charters actually have somewhat better grades over all: