This is a ditto that provides quick notes in outline format for students as they follow along with the teacher in a separate PowerPoint presentation I also created for this lesson. You can preview this presentation, along with 140+ other Powerpoint presentations, that I have created and successfully use in my middle school science class on my teacher resource website (http://www.PickinPost.net). This ditto and presentation covers information on the various types of simple machines and how to cal