We did our first whiteboarding today, which was really more about getting used to presenting your ideas rather than getting deeper with our understanding. I then talked about the two types of reflection; there's reflection off a rough surface, where the light goes in all directions, and reflection off a smooth surface, which only goes in one direction. Then we took data using three pins to figure out how light reflects off smooth surfaces.
Notice that I didn't get any words for the types of reflection; I finally remembered to do concept first, words second in this unit. Also, I realized too late to cut the little plastic mirrors into small pieces of make the lab easier and more accurate.