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"So the impact on their school day, the impact on their learning and the impact on their life chances is really fundamental."

He said phone use was already restricted during the school day, but the experiment included when staff and pupils returned home.

Jordan during his high school days, signed with USC as a defensive end and is returning to take over his alma mater.

“At the end of the day, I have brothers for life and I’ll never forget the memories I spent with them,” he said of his high school days.

Determined not to forget her, she said the class listened to her favourite gospel song - God Will Work It Out - at the start of every school day.