We're doing a revision lesson and it's going to start with a loop game, followed by the kids playing pictionary with key words. I need to thinkof a way of filling 25 min reminding them about fossils and evolution without having to stand at he front and bore them. Last lesson I constructed a good revision lesson involving small tasks throughout, but some had obviously not revised adn so, the brief talks I did in between were too quick for thema nd they couldnt do teh tasks. I don't want to bore the more able ones and I dont want to go over the heads of the less able. I'm loathe to do a whole class quizz thing cause we're going through a practice exam next lesson. We're getting themt o do mind maps in the lesson after that, then exam tips and preparation in teh one after that along with getting them to formulate thier own questions to ask each other about the topic. After planning all those Ideas I'm stuck for 25 min this next lesson... any ideas. I've looked all over the net and just can't find anything that would cover it all whilst fittingin to the time. There was one thing where they arrange fossils by date and morphology then try to place an unknown in terms of evolution but I think it might take too long or be too dull for the more able ones. Perhaps I needn't be over ambitous and just do some teacher talk and quizzing with white boards.