The charter school where Beverly Persad has sent three children, Success Academy Cobble Hill, is exuberantly diverse, with a student body that closely mirrors the district’s demographics: Low-income, white, black and Hispanic students are equally represented. It’s a school with the highest achievement in District 15, as measured on state tests, and the smallest intergroup performance gaps in virtually the entire city. Despite these tremendous achievements, the mayor and the Department of Education have actively obstructed our community, refusing to grant public space for our middle school since 2014.