At M.S. 45 in East Harlem, which the city wants to close at the end of the year, supporters said the school was on the verge of turning around after years of poor leadership. Sheepshead Bay High School in Brooklyn, on the chopping block for the second time in a year, got praise for serving its many immigrant students. School-Stories.org reporters Carey Reed and Andres Lopez cover the hearings for GothamSchools.org. And at the Tilden Campus, also in Brooklyn, students and teachers argued that three schools’ success could be undone if a new charter school moves into the building.