Khan academy is definitely not it. They teach traditional curriculum which is isn't useful to business.
The app is definitely isn't the easy part - it is basically the whole part. The current education system is a failure for 2 reasons
- unanalyzed teaching
- unmotivated students
Apps solve both problems, every user interaction recorded and analyzed, gamification.
You can turn it around even and starting hiring those students yourself and create your own megacorp with the best employees and make megabucks.