An article about charter schools' performance

versus that of public schools. From the Wall Street Journal. The article is a few months old but still interesting. It's about the performance gap between students from charter schools vs. students from public schools. Some recent studies show that charter schools do not, as some critics say, cull the best students from public schools; they simply educate their students better. So, not only are charter schools cheaper than public, but they work better too. (Surprise!)