Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Mystery of the Mirrors (1 3)
This lesson plan from the Illinois Institute of Technology incorporates observation with hands on activity through various stations.
Optical Society
Optical Society of America: Optics for Kids: Mirrors & the Law of Reflection
A simple activity to investigate how light reflects off a flat surface, a convex one, and a concave one. With a link to an article on reflection.
Bill Nye
Bill Nye: Mirror, Mirror
Try this at-home science experiment that shows how your brain works with what you see.