Who’ll help Taniya?

Welcome to a New York City education in 2015, when some teachers leave eighth-graders in charge of first-graders — and mayhem and injury ensue. If Mayor de Blasio and Chancellor Carmen Fariña would stop fighting reforms, they might notice that children in many more than their 94 “renewal” schools have been abandoned.

Among the unfortunates are the kids at P.S. 111 in Long Island City, Queens.

There, supposedly responsible adults assigned four eighth-graders to serve as school-day reading tutors for four first-graders.

This being a K-8 school where just 13% of the eighth graders had passed last year’s state English and math exams, the idea is loony: Both the little ones and the budding teens needed the attention of teachers rather than kiddie play help.

Still worse, adults went AWOL. An older girl said a teacher left her in charge while she went to the bathroom — for half an hour.

In the vacuum, the “tutors” tried to bait 7-yearold Taniya Jules into fighting a 6-year-old boy. After the child refused, she was dragged by the hair, feet and shirt around a hallway by the older girls, according to Taniya’s mother — who said the school nurse later told her that her daughter had run and hit her head on a table.

The child — and a surveillance video — screamed otherwise.

After the Daily News exposed the violence, the Department of Education removed four teachers and an aide from service. That’s it?

Principal Dionne Jaggon was filling in following the departure of a predecessor who presided over a downward spiral of grades and behavior.

The 400-student P.S. 111 landed this year on the state list of persistently dangerous schools, following 23 assaults and 37 altercations. Meanwhile, just 8% of third- through eighth-graders passed English and math exams.

A reviewer deemed the school “proficient” in 2012, on every count. Adding in test scores, it received a C on its last progress report card under the Bloomberg administration system.

Under the de Blasio-Fariña grading system, the school scored “approaching target” on student progress and achievement — a measure so meaningless as to deny parents true information and protect everyone from being called to account.

Meanwhile, the mayor and chancellor are fighting Gov. Cuomo’s push to establish an effective teacher evaluation system, empower principals to dismiss the worst teachers and place the worst schools into receivership for drastic overhaul. Look at the video of the assault suffered by Taniya and you’ll know Cuomo’s right.