Outline
Light
Reflection and refraction of light.
Representing rays, waves, lamps, ... mirrors and other surfaces.
Working from elementary cases toward more complex interactions.
I draw aggressively from the collection Vector Methods http://tube.geogebra.org/material/show/id/74031
![Light](https://stage.geogebra.org/resource/bJP6pB5v/rY4CpwdjSNR06LPr/material-bJP6pB5v-thumb.png)