Mr Morrison said banning phones meant there was “one less distraction in the classroom”.
Phones are not allowed at any point – including break times – until the end of the school day.
“We have seen a big impact in terms of engagement in class,” he said.
“When you see groups of young people out and about in town, they’re all sitting round the table looking at their phones and not talking.
“What we see here at lunchtime is pupils playing football, pupils sitting talking, pupils sharing food with each other.”
Year 11 student Logan said he liked the ban in school as it meant he was not distracted.
Another student, Lucas, said: “Me and my mates, we just talk to each other for the whole lunch.”
