This is the exact same kind of shit that got thrown at every person ever who successfully challenged a rusty status quo, especially when job security was at risk. Quoting the original piece in Washington Post: We have great respect for the stated goal of Khan Academy — “A free, world-class education for anyone, anywhere.” Yet, we have some serious concerns about the quality of the instruction providing this education…
Look at it another way. You train for years. You spend more years, perhaps decades, working in a classroom. You read the research, you know just how hard it is to get kids to understand decimals. You work and work to find the right way for each child to understand this concept that trips up so many. Then someone else comes along, teaches it badly, and gets lauded for doing wonderful things. Well, it's true that KA is…
Maybe, just maybe, he's on to something that despite years of institutional training 'real' teachers are missing.
Maybe it's important for a student to be able to interact with a lesson over and over again in order to catch a key point they might have missed the first pass.
Maybe it's important for a student to be able to ask other students how they caught on to something on their time scale and in a way that is pseudo-anonymous.
Maybe what makes Khan a great teacher is his breadth and depth of knowledge and context thanks to being a triple undergrad from MIT with backgrounds in math, computer science, and electrical engineering AND a Harvard MBA.
Maybe the institution of teaching is due for an evolutionary shake-up and Khanacademy is it[or at least a taste of things to come].