A majority of New York teachers reported huge classroom improvements after the state’s first phone-free school year — thanks to better student focus, less bullying and more kids just being kids. About 600 public school teachers were polled and 76% of them gave high marks to the no-cellphone policy implemented in September, Gov. Kathy Hochul announced Monday during a roundtable at Brooklyn’s PS 383 Middle School. The educators reported a noticeable improvement in student behavior and said they were more engaged in discussions and collaborated better with one another.