August 16 | EducationNext

By Michael Petrilli

Let’s invent a game; it’s called “Rate This School!”

Start with some facts. Our school—let’s call it Jefferson—serves a high-poverty population of middle and high school students. Eighty-nine percent of them are eligible for a free or reduced-price lunch; 100 percent are African American or Hispanic. And on the most recent state assessment, less than a third of its students were proficient in reading or math. In some grades, fewer than 10 percent were proficient as gauged by current state standards.

That school deserves a big ole F, right?

Now let me give you a little more information. According to a rigorous Harvard evaluation, every year Jefferson students gain two and a half times as much in math and five times as much in English as the average school in New York City’s relatively high-performing charter sector. Its gains over time are on par or better than those of uber-high performing charters like KIPP Lynn and Geoffrey Canada’s Promise Academy.

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