Hi all, I'm a student teacher currently on second placement. I've been having some issues with a Year 7 class - they're nice kids but they're very noisy and there is a lot of low level disruption when I'm trying to talk to the class. I've started doing "secret student" as a way to combat this, where one student is picked at random at the start of the lesson (the students don't know who it is but the teacher does) and then the whole class is rewarded if the secret student meets the stated expectations. Works well with a younger group as they're all convinced it's them, and it's been working a treat this week! I've given them vivos and mini eggs this week but after Easter I want to move to a cumulative points approach so I'm not forking out money for rewards or feeding them sweets every lesson. The idea is that if they "win" in 80% of lessons in the next half term then I'll reward them with a "fun" lesson before the half term holiday. (Not that all Science lessons aren't fun ). I think this'll work well because they LOVE practicals and demonstrations, particularly chemistry, and my last lesson with them before ending my course will be the lesson in question. Phew! A lot of background there to get to a fairly simple question - I apologise! I've got some ideas for a couple of demonstrations (screaming jelly baby, thermite) but I would like to incorporate an exciting class prac for the majority of the lesson, maybe one with a competitive element? Does anyone have any ideas for a class prac or maybe suggestions for relatively simple demos that go down well?