A 15-year-old schoolgirl says she was 'humiliated' after a teacher flashed a blown-up image of her in a bikini to a packed assembly.
Pupils at Eggbuckland Community College in Plymouth, Devon, were shown the photograph after it was taken from the girl's Facebook profile to illustrate the dangers of posting private images online.
The girl's mum has now complained to the school and education watchdog Ofsted.
She told the local newspaper: "They took the photo from her Facebook profile - she put it on there last year.
"They used other photos of kids from the neck up but for some reason they thought it was OK to use a picture of my daughter in her bikini.
"Why did they have to use an image like that to make their point? Then they pointed her out in the assembly. She was really upset.
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"I got a phone call from my daughter in the afternoon. When she told me about it I went from nought to 60. I was so upset at work I was sent home.
"She's really upset and hurt and this has knocked her confidence. She's not the type of girl who likes attention like this.
"She's a tomboy, she doesn't wear make-up and she doesn't even have her ears pierced. It's not often you even get her in a bikini."
She said if the school were concerned about the image, they should have spoken to her daughter privately.
She added: "The headteacher has since phoned me and couldn't be more apologetic. I don't think she was aware it was going to happen."
A Plymouth City Council spokesperson said on behalf of the school: "It is very important that young people understand the risks of posting images and messages about themselves online.
"All our partner agencies, including all schools, have a duty to promote on-line safety and equip all pupils and students with the ability to stay safe online.
"Most images placed online on social networking sites or through the use of smartphones can be found and copied, and then shared.
"Sadly, there are people of all ages who know that they can use photographic images to bully, exploit or coerce others, and do so.
"The advice given to children and parents is that it is very difficult to ensure any picture is completely private and it is important to positively manage their online identity and profile and think carefully before sharing personal content."
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