The History of Ed-Tech via Patent Applications

By Audrey Watters. Mike Caulfield tweeted this picture this morning, with a wry chuckle alluding to MOOCs' pretension that they've invented this whole ed-tech thing: a 1966 patent for an “audio visual teaching system.”
The tweet fits nicely with a project we're working on: trying to uncover and document some of the “hidden history” of ed-tech (and it dovetails too with my forthcoming book on Teaching Machines). More...