A Solution for Bad Teaching
nytimes.com
nytimes.com
We've had textbooks for a few thousand years now (depending on how loose you want to get with the definition of "textbook" -- I mean a body of codified adn recorded knowledge). Books are great. Videos are great. MOOCS (which in most implementations are basically just fancy textbooks) are great.
They still aren't teachers, and never will be until we have Strong AI.
Teachers aren't going anywhere.
The main reason textbook learning isn't effective is because it requires willpower. No ones forcing you to do it or stopping you from walking away. But that seems easier to solve.
A textbook or video can't see your facial expression (or even read what you've written online) and figure out that you're confused or headed down the wrong track.
A textbook or video can't decide that a certain approach isn't working at all and shift to a different analogy, example, or whatever.
"Wow, the whole class looks stunned. Maybe I'd better explain that again, or in another way." Any good teacher has done this many times.
Some of these problems may be solvable, but canned video lectures aren't going to do it.