Most New York City charter schools are outperforming schools in their district.
When compared to the overall scores for the school districts in which they are located, some charter schools â€” such as Bronx Preparatory in the South Bronx and the KIPP Infinity school in Harlem â€” had as much as double the portion of students scoring proficient in math and reading.
Also outperforming district schools are two charter schools opened by the city teachers union.
Overall, test scores rose so much in city schools that some suspect the test isn’t valid.
Excluding virtual schools, California charter schools are doing well, reports EdSource. Classroom-based elementary charters do about as well as district-run schools when results are adjusted for demographics. Classroom-based charter middle and high schools, which serve more disadvantaged students, have higher Academic Performance Index scores than noncharters.
Virtual charters have lower math scores. Schools run by Charter Management Organizations tend to be high performers, and these CMO-run schools make up an increasing portion of the total.