Students then completed the AIMS activity called Pathfinders.  They were given a sheet with 9 different circuits and they had to test each one and decide if it went in Lights R' Us or Sparky's Fix It Shop.   On the outside they had to describe how they would fix each of the circuits that were in Sparky's Fix It Shop to make them work.

For the top part I had students look at their reflection in the concave and convex side of a spoon and describe what they saw. 

On the bottom we talked about the difference between transparent, translucent, and opaque. 
(I got this awesome idea from beakersandbumblebees.blogspot.com)