What it is: Today I was working on our inquiry block framework for the 2017/2018 school year and, as often happens with inquiry, fell down a wonderful rabbit hole that led me to this site. Mathigon is a fantastic *newish* math site (it’s still being built and added to) that brings textbooks to life. I know you’ve probably seen this claim before, but this is unlike the other online interactive textbooks I’ve seen. It’s more…alive. It’s like a personalized tutor, combined with story, and exploration. Really, textbook is the wrong word, because this is something totally new. A chat bot…