The constraints are these: Five minutes, 20 slides. They advance every 15 seconds whether you are ready or not.
Here is my first stab at the genre, from this spring’s NCTM/NCSM conference in New Orleans. The others who presented that day are all worth watching. You can get the complete list, links and a bit more context from The Math Forum, which hosted the talks.
Enjoy.
Overthinking my teaching 