1. Ensure you identify your learning objective before the activities, which should be carefully linked to the LO. 2. Only use activities that you have used before and you know are effective when you use them. 3. Do not take any ideas from TES or other forums - one head who posts regularly on here got 4 out of 6 candidiates turning up for an interivew with the same lesson they'd plagiarised off here. She didn't appoint any of them - she said she wanted teachers who could come up with their own ideas.