About This Lesson
Please give me feedback if you have time. These are PowerPoints and sheets I use in lessons and will need some adaption to your classes. I should mention that there are running jokes about my dislike of dogs (sorry!). See more at www.mrsimonporter.wikispaces.com
Good set of slides here. I liked the link on the last slide, you get to see the standing wave building in really slow motion. I also use the resource on the PhET website.