Matt Hancock, writing in the Telegraph, said he admired schools who did not allow them, adding that more heads should "follow their lead".
In a letter to the same paper, a group of Conservative MPs said mobiles should be confiscated at the school gates.
At the moment, schools are free to set their own rules. So what are the options?
No phones here
Michaela Community School in Wembley has implemented a blanket ban - if a phone is seen or heard, it will be confiscated.
Head teacher Katharine Birbalsingh says: "We believe strongly that children should not have phones in school.
"We think they are extremely distracting for children and they interrupt their concentration, they interrupt their ability to think."
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