See Martin's Presentation here whilst listening to the audio http://prezi.com/5gvczwaft7uh/teachmeet-london/
Some fab things for your class.
Martin Burrett - http://www.twitter.com/ICTMagic - A Year 5-6 teacher at Mersea Island School in Essex. An advocate for using digital technology to improve teaching and learning in schools. He founded the ICTmagic educational resource sharing website and is a co-administrator for UKedchat.