Introduce students to the basics of Flux. We can lean on the "official" Facebook implementation (even though it's a little wonky at times), since that's what students will use for their first pass at building a flux-based app in this unit.
The main thing that students will need is a walkthrough of how components lead to actions lead to stores lead to components. The dispatcher is essential (and confusing, it turns out), so feel free to dwell on that a bit.