Teaching Kids Real Math with Computers, Conrad Wolfram, TED talk
Capturing, Sharing, and Resolving Perplexity (CUE 2014), Dan Meyer
Against “answer getting”, Phil Daro
Math is the hidden secret to understanding the world, Roger Antonsen
Uncovering the special mathematical practices of teaching (ICME 2016), Deborah Ball
This will revolutionize education, Derek Muller