The following 5 sites are ways to get the class discussing topics related to your study within the room, between schools, or across borders.
a. Find out the Pros and Cons of controversial issues - http://www.procon.org/
b. Debate online with UFeud – http://www.ufeud.com/
c. Create Debate is an online discussion community - http://www.createdebate.com/
d. Heads Up - HeadsUp is a moderated, online space for under 18s to debate the political issues important to them. http://www.headsup.org.uk/content/