Exclusive | Students and teachers score NY's school phone ban: 'The best thing that's happened'

There’s no signal.

New York’s new statewide smartphone ban in schools just went into effect this academic year — city public schools returned Sept. 4 — and students, parents and teachers are already grading the controversial measure.

And they’re giving it an A+.

“The cellphone ban has transformed my class … I haven’t had kids this engaged in years,” a Brooklyn Preparatory High School history teacher, who goes by Mr. Johnson, raved to The Post about the switch.

Governor Kathy Hochul’s new measure requires nearly 1 million kids in K-12 public and charter schools to put all personal internet-enabled devices away from the first bell to the last.

“They’re actively listening to the lessons, answering questions thoughtfully and critically, and best of all, paying attention to and learning