A New York City teacher writes: “Sexual abusers don’t belong in schools. They belong in prisons, where they can mingle freely with others who share their interests. Let’s put them there.” Yet the brouhaha over new rules for their removal is a distraction, he writes: “Let’s move the education conversation back to education. No one needs a diversionary circus.”

Stanley Teitel, the principal of Stuyvesant, will step down Sept. 1, the Education Department announced Friday afternoon. Officials provided few details on the resignation, but said a replacement would be named early next week. Meanwhile, summer school wrapped up this week. And the 24 schools ensnared in the turnaround fight between the unions and the city were told to focus on a smooth start in September. This, and a Twitter fight, in the weekly wrap up.

A teacher’s aide in New York City is caught between the justice system and the New York City Department of Education since a grand jury on Monday declined to indict him on child sexual abuse charges.

UPDATED | Schools Chancellor Dennis M. Walcott said Friday that the arrest of a third-grade teacher at a Harlem public school, the latest in a slate of school arrests involving sexual abuse charges, is yet another reason to push forward with state legislation that would grant chancellors the power to fire offenders. His comments set off a battle with the United Federation of Teachers, which said the city should do a better job screening the people it hires — a criticism that Mr. Walcott said on Sunday was a “disingenuous shell game” meant to draw attention away from the real problem of too-lenient arbitrators.

In the news this Wednesday, questions about the state’s laws on sexual abuse in light of the allegations surrounding Horace Mann, and stalled progress in Albany to move against public schoolteachers who abuse students. Also, does the city know enough before implementing new special education policies citywide? What about parents? And a thief takes students’ cellphones.

The New York Times Magazine article about the Horace Mann School has drawn hundreds of comments from readers moved by its description of sexual abuse that took place there during the ’70s and ’80s. It has also drawn a letter of response from the school.

Students and parents said on Thursday that Joel Morales was bullied in his East Harlem neighborhood and at school before he hanged himself on Tuesday in his apartment.

The latest episode of a teacher being accused of having sex with a student comes days after Mayor Michael R. Bloomberg called on the state to pass legislation that would give the city greater power to fire teachers accused of sexual misconduct.

Hany Abdalla, a teacher’s aide at Public School 84 on West 92nd Street, was arrested in April and accused of sexually abusing an 8-year-old special education student. The Education Department suspended him without pay, but he has not been charged with any crime.

New York is one of 19 states to receive a federal waiver from complying with provisions of the No Child Left Behind law. State Education Commissioner John B. King says the waiver allows New York to disregard requirements that were “unproductive or unrealistic.”