Should schools be device-free? Debate rages after a legal challenge has been launched that may force the education secretary to introduce a ban.
Teenager sues over phones in schools
Digital disruption: Research suggests regular smartphone use can disrupt sleep, damage self-confidence and raise anxiety and depression risk, prompting some parents and teenager Flossie McShea to push for a compulsory ban in schools. Glossary
Outlawed - Made illegal or banned by law or authority.
Extreme content - Online material that is violent, shocking, or disturbing.
Disrupt - To interrupt something by causing a disturbance.
Digital literacy - The ability to use IT effectively to find, evaluate and communicate information.
Digital citizenship - Behaving responsibly and respectfully online.