I'm teaching A level Physics and not over-confident with it! (and I'm an NQT on top of everything) Has anyone actually done the three forces problem with three masses on two pulleys, for real rather than as a theoretical diagram? Does it work? Is it worth it? What sort of stuff can I get them to do with it other than proving what's going on? Also, what other activities could I put into the lesson on equilibrium forces? They'll have done the coplanar forces practical with a single mass and two force meters. I'm really struggling, wish I wasn't teaching A level. If there was any resources in place I'd be fine but re-famliarising myself with the material whilst also trying to think of how to teach it to others is hellish.