A mobile phone ban in a Manchester school has made pupils more sociable and involved, a senior teacher has said.
In October all schools in England were given government guidance to curb mobile phone use during the school day.
But Burnage Academy for Boys banned phones nearly 12 years ago, and associate assistant head teacher Greg Morrison said it had made a "big impact".
Dr Louise Black, from the University of Manchester's School of Education, said it was important "to keep having conversations about digital literacy and staying safe".