The only real problem I have with the Khan Academy is that they appear to be using a mouse to write notes on the digital chalkboard. This is incredibly messy an

The only real problem I have with the Khan Academy is that they appear to be using a mouse to write notes on the digital chalkboard. This is incredibly messy and really hard to understand. For example: In the first video on motion, Sal is going on and on about the topic, and is doing a wonderful job. At the same time, he's writing notes. This would be fine, except the first '=' he writes looks like a 'c', and then in his first example, he is literally saying "D is equal to fifty.", while clearly, his writing looks more like "d=60". Seriously, couldn't Bill Gates buy some new tools for Sal? It really takes away from the production value when I see this.