Physics 11 – Today we continued with our investigation into mirrors. Students found the focal length of a mirror by projecting an image from a distant object. Next they were asked to find the image distance for a given object distance, using three different methods: direct measurement, calculation using the focal length, and doing a scaled ray diagram.
As I noted from last day in physics, I hoped that students could use a cooperative learning environment to successfully solve mirror problems. It turned out that the substitute felt that kids should work quietly and independently. Uh huh.