Almost 650 schools across Northern Ireland are to explore the impact of cyber bullying this week. It is part of this year\'s anti-bullying week which begins on Monday. According to Department of Education research in Northern Ireland, 15.5% of Year 6 pupils and 17% of Year 9 pupils surveyed have experienced cyber bullying in recent months. Three-quarters of teachers in post-primary schools surveyed said cyber bullying was more prevalent. Lee Kane, regional anti-bullying co-ordinator, said anti-bullying week provided a channel for teachers and parents to challenge all bullying methods: \"We are overwhelmed by the interest from both schools and parents in this year\'s anti-bullying week,\" he said. \"It is a clear indication of the concerns that exist in relation to cyber bullying. \"Anti-bullying week is a great opportunity to reinforce key anti-bullying messages for all of those involved in schools - pupils, teachers, support staff and parents.\" Cyber bullying can be exhibited through the use of mobile phones, online gaming, email and social networking. Anti-bullying week will run until Friday 18 November.