This GI Introduction gives primers and definitions for what GI is and roughly how it works to familiarize learners with GI concepts prior to starting to use GI methods, which are also covered in other prepared lessons:
Here you can use the provided scene file (or your own) to demonstrate how to put the topic to use. You can use the provided handout as guideline.
At this point you are going to give the students a chance to play around with setting up caustics effects. You can either use the provided scene and handout or create your own