Three schools in Surrey are launching a pilot programme to restrict mobile phone usage in an attempt to improve pupils' wellbeing.
The secondary schools, which are part of the GLF Schools trust, are to trial an app that blocks social media, messaging and other apps which they believe are "distracting" during school hours.
GLF Schools said the expected benefits were more focus in the classroom, a calmer learning environment and improved student mental health.
About 2,300 students are to participate in the pilot, according to GLF Schools.