This includes anything from bullying to difficulties with school work to feeling unpopular. The group tries to come up with ideas to help the pupil who is upset.
Two pupils from each year are also voted in as School Council representatives - they go to big meetings with teachers and mention problems that are bothering pupils.
Ideas can even be dropped into a 'worry box' anonymously.
One of the school representatives thinks the system really works:
"Sometimes the bully might feel insecure and unwanted.
"If someone bullies a lot we try and single them out from the other pupils and keep them in for breaks and at dinner time to see if the problems stop without them being on the playground.
"At the end of their problems they both become much happier pupils - and they end up being much better friends."