It's revision time again. Well at least it is with my SL class, won't have any time for class revision with my HL. Just got time for the second option before the end, must admit we're pushing it a bit this year but I think it'll be fine. I always let my class think they are choosing the option but always manage to get them to choose astrophysics and relativity. Today my class rebelled and demanded a re-vote so we're doing Medical instead of relativity. Threw me a bit having to suddenly try to teach medical physics with no preparation. At one inspired moment I told the class that ears are for hearing, oh well, never mind. My SL class have been working through some exam papers, tomorrow I'm planning to give them a paper 1 but can't bring myself to print out all those copies just for one lesson (I'll be joining Greenpeace next). So I've thought of a cunning plan. I'm going to split the class into groups and get them to do a paper between them. Turn it into a group competition,might even be fun. We'll see how it goes.

Worked quite well. Students interacted more than when working on individual papers (obviously). They were also much more eager to offer explanations to solutions when speaking on behalf of a group. The only thing that didn't work was the competition aspect, I forgot to ask the team scores so no one will ever know who won. Also came across a question that was different on the original to the bought pdf version I projected. The original didn't have a solution so was changed before sale, thought I was going bonkers for a bit.