In an opinion article, an official of the New York Civil Liberties Union writes: “Anyone interested in increasing student achievement, and particularly in closing the achievement gap, should pay close attention to the impact of stop-and-frisk practices on the lives of black and Latino students, including on their view of authority and ability to succeed academically.”

A former city schoolteacher writes: During the 2000-01 school year I taught a course about stop-and-frisk and the Fourth Amendment of the U.S. Constitution. With a mayoral election ahead, I stated that the days of more than 100,000 stop-and-frisks every year may be coming to an end. The students were more skeptical. Oh, how right the students were and how wrong their teacher was.

The New York City schools chancellor, Dennis M. Walcott, is ramping up his efforts to accelerate discipline for teachers accused of sexual misconduct, holding a rare news conference Friday morning to again make his case and writing about the issue in an Op-Ed article in The New York Times.

One in five people stopped and frisked last year by the New York Police Department was a teenager between the ages of 14 and 18, according to a WNYC analysis of recently released police data. An overwhelming number of them were black or Latino boys.

Mayor Bloomberg’s new Young Men’s Initiative identifies problems afflicting too many young men of color: high suspension and arrest rates, and low graduation and employment rates. But in an opinion article, the New York Civil Liberties Union says the mayor’s own policies of using the Police Department to police the schools may be adding to the problem, instead of helping.