Michael Napolitano speaks to his fifth-grade class in the Morrisania section of the Bronx like a basketball coach. "You -- let me see you trying!" he insisted the other day during a math lesson. "Come on, faster!"
Across the hall, Larita Hudson's scolding is more like a therapist's. "This is so sloppy, honey," she prodded as she reviewed problems in a workbook. "Remember what I spoke to you about? About being the bright shining star that you are?"
They are not just two teachers with different personalities. Ms. Hudson, who is 32 and grew up near the school, has a room full of 11-year-old girls, while Mr. Napolitano, a 50-year-old former special education teacher, faces 23 boys. A third fifth-grade class down the hall is co-ed.
The single-sex classes at Public School 140, which started as an experiment last year to address sagging test scores and behavioral problems, are among at least 445 such classrooms nationwide, according to the National Association for Single-Sex Public Education. Most have sprouted since a 2004 federal regulatory change that gave public schools freedom to separate girls and boys.