IB Internal assessment presentation and sheets for students explaining what they are assessed on. I do one practice assessment and the Powerpoint refers to that. Slides go over the different criteria as does the student sheet. Student sheet also contains many suggested experiments (this is written for Physics, but most of it applies to Biology and Chemistry too).
Written for Cambridge IGCSE Physics, this follows on from a lesson (also uploaded) on the law of reflection. A number of slides gradually build up how an image is formed. Suitable questions from the textbook you use can be substituted at the end. The students practice mirror writing and at the start bof the lesson consider their own reflections (this discussion could take place in groups) Check out more of my resources at www.mrsimonporter.wikispaces.com