Children as [young / old] as seven are posting abusive and damaging comments about their teachers on social networking websites such [was / as] Facebook and Twitter, according [by / to] new research. Even [worse / bad] , some of the children's parents are adding their comments to what constitutes a serious [elevation / escalation] in the cyber-bullying of educators. The British teaching union NASUWT [conducted / conduction] a survey of more than 7,500 teachers. It found that [almost / most] half of teachers had reported [abuse / abusive] to the school, police or the website on which the [insults / consults] were posted. Other figures show that more than 20 per cent of teachers [touched / felt] they had been cyber-bullied in the past year. Three per cent of the comments were from under-elevens. The survey revealed that 64% of the comments were made by pupils, 27% by parents, and the rest a [mix / combine] of both. Many of the comments related to teachers’ appearance, [competent / competence] , and sexuality. Chris Keates, NASUWT general secretary, said: "It is [clear / clarity] that steps need to be taken to [prevent / protect] teachers from the abuse of social media by pupils and [parenting / parents] ." She added: "Teachers are often devastated by the [vile / file] nature of the abuse they are [sufferance / suffering] . Some have lost their confidence to teach once they see [fouled / foul] and personal remarks made by pupils in their classes and have left the [profession / professional] ." Many teachers are afraid to report the abuse. They think it would lead to more [trouble / troubled] .