Charter, public schools and the chasm between

Javier Hernandez:

When Neil J. McNeill Jr., principal of the Middle School for Art and Philosophy in Brooklyn, learned that fewer than 4 percent of his students had passed state exams in math last year, he was frustrated.
It so happened that he shared a building with one of the top-performing schools in the Brownsville neighborhood, Kings Collegiate Charter School, where 37 percent of the students had passed, well above the New York City middle-school average of 27 percent.

Mr. McNeill had long been curious about the charter school’s strategies: It, too, served large numbers of low-income black students, many from the same neighborhoods. But the two schools operated in their own bubbles, with separate public-address systems and different textbooks. And as a matter of practice, they did not talk about academics.