The New York Post has been a vocal cheerleader for the hacksaw education policies of the Bloomberg administration, yet its reporters are usually first-rate journalists, and they exposed terrible conditions at PS 106. Now, it published an article by an experienced teacher who left the school.

The Post exposed dreadful conditions at P.S. 106, where the principal ruled with an iron hand when she was present. The school had no curriculum, no textbooks, no discipline, and the Post called it “the School of No.”

The principal was just fired by the de Blasio administration after an investigation.

There is more to the story. The principal was a graduate of Bloomberg’s celebrated Leadership Academy, a fast-track program to train school leaders and eliminate the usual training and experience needed to become a school principal. Many in the city called it “the Jack Welch Academy,” to acknowledge the GE leader’s role in designing the program. The CEO of the program was a software executive who never taught or worked in a school. These new leaders were supposed to bring business efficiency to Bloomberg’s hundreds of new schools. Toughness was in, kindness was out.

Patricia Walsh, the special education teacher who wrote this article, said:

“Retaliation was common. When a teacher signed her name to a letter sent to officials expressing her concerns about educational practices that are adversely affecting children in our school, she was reprimanded for more than one hour by two supervisors from the Department of Education. Teachers learned to remain anonymous.

“Letters began to flood the district office, superintendent’s office, mayor’s office, chancellor’s office, UFT and the special commissioner of investigation just three months after Sills took the leadership position. But rather than addressing our concerns and dealing with the cause, the staff was reprimanded and scolded for not signing individual names. Now see why! Sills strategically targeted and harassed staff.

“Meetings, letters, e-mails, reports to the teachers union . . . all proved to be futile. Every letter, every complaint reiterated her absence, lateness, inappropriate interaction with children, parents, staff, even falsification of reviews….

“What happened of course is that anyone who could left PS 106.

“The transfer rate of staff members soared to 60%.

“Then the students left. Parents transferred their children to other public schools and charter schools to escape what they saw as an institution that the city had given up on.

“Enrollment declined from more than 600 students to just 250….

“To show just how clueless and uncaring the administration was — in December 2013, PS 106 received a glowing report. At the time, there was no mandated gym, no special-education teacher (I had left and wasn’t replaced), no books, no art and no extended-day services!”

“Patricia Walsh, a graduate of Teachers College at Columbia University, taught for 27 years, and was a special education teacher at PS 106”