Strengthened guidance on the use of mobile phones in schools has been published, and makes clear that schools should go beyond ‘not seen, not heard’.

While most schools set out that phones should be not seen and not heard, only 16% of secondary pupils say phone rules are followed all of the time, and with the rapid increase in technology take-up and emerging evidence, pupils, schools and parents need more clarity.

The strengthened guidance will give every school clearer backing to keep phones inaccessible and helping parents and pupils understand what a truly phone-free school day means.

Education Secretary Lucy Powell said: "Children should not be using smartphones at any point during the school day, full stop. That’s why we’re strengthening our guidance to take the next leap towards truly phone-free schools.

"Schools are already leading the way. We’re backing heads and teachers with a clear message for parents and pupils: school is for learning and friendship, not scrolling.

"Alongside our curriculum reforms, this is about making school unmissable – giving every child more chances to learn, connect and thrive."

Dame Rachel de Souza, Children’s Commissioner for England said: "I welcome strong action to stop phones distracting pupils and disrupting the school day. I know most headteachers already restrict phone use in their schools and I would like to see support for all heads to apply this important policy.

"This must be part of a bigger conversation about giving children the best possible start to life. We all have a responsibility to make sure young people can explore the online world safely, but they also need and want more opportunities to learn, connect and play without the need for a screen."