article_snippet.sent: Meanwhile a survey, by teachers' union NASUWT, revealed a disturbing picture of how parents are increasingly using Facebook and Twitter to intimidate staff.
article_snippet.sent: It showed families are using social media to post obscenities, threats, offensive photos, sexually explicit insults and even covert films of teachers - with 30 per cent of those polled confirming families had been the subject of parents' abusive internet posts.
article_snippet.sent: The poll of 1,500 teachers also showed that the proportion of teachers suffering abuse from both parents and pupils has more than doubled over the past year – increasing from 21 per cent to 60 per cent.
article_snippet.sent: NASUWT general secretary Chris Keates said: 'It is deeply worrying to see that the abuse of teachers has risen by such a huge margin this year. '
article_snippet.sent: Equally concerning is that it appears that more parents are the perpetrators of the abuse.' NASUWT general secretary Chris Keates added: 'The vile, insulting and personal comments are taking The vile, insulting and personal comments toll on teachers' health and wellbeing and undermining The vile, insulting and personal comments confidence to do The vile, insulting and personal comments job.'