As a tweet: twitter.com/ncasenmare/status/857589095069077504
For more stuff about knowledge being actively constructed, watch Derek Muller's (Veritasium) TED Talk on why you need to confuse people to teach them deep concepts, and read Seymour Papert's groundbreaking book on "learning by making", MINDSTORMS. (now free on MIT's website)
This is another attempt of mine to do "blogging" as pictures mixed with words. Because it gives me a lot more flexibility in expressing ideas... and also because images are easier to share on Twitter and Tumblr.
Many thanks to Arthur Carabott, Dan Meyer, Julian Ceipek, & Scott Farrar for feedback on an earlier draft!