The lesson is scaffolded to even the most basic level, and the scaffolds can easily be adjusted for differentiation. The folder contains guided notes (in multiple formats), PowerPoint and homework. As I said in my Free Body Diagram lesson, this is a topic on which students need practice. So after the introduction lesson, I have students spend a whole day drawing diagrams. I use whiteboards in my lesson, but you can easily adapt it to whatever resources you have. This lesson also includes the weekly quick I would give at this point in a forces unit.