Earlier quoted context omitted.
> Making/updating lesson plans Why? Are they really better than khan academy at doing a lesson plan? Isn’t this like a software engineer complaining they have to write their own database driver in their spare time after work?
In general, it is a good idea to personalize lesson plans based on how well people did or didn’t react to the last one, and khan academy certainly doesn’t do anything like that, nor does it work for everyone.
Are you claiming teachers can personalize a lesson plan for each individual student in a class? To a granularity finer than what Khan Academy can do?