Keith Schacht - https://twitter.com/keithie - is the cofounder of Mystery Science - https://mysteryscience.com/ - which makes lessons that inspire kids to love science. They were part of the Summer 2017 YC batch.

Avichal Garg - https://twitter.com/avichal - is an Expert at YC and prior to that he was the Director of Product Management at Facebook.

Geoff Ralston - https://twitter.com/gralston - is a Partner at YC and before that he cofounded Imagine K12, an edtech accelerator that’s now makes up YC’s edtech vertical.