Earlier quoted context omitted.
Hmm, you may have an outdated view of KhanAcademy. Sure, there's videos to supplement, but there's also plenty of exercises and interactive content.
I used Khan Academy to complement my math and econ learning. While the concept of KA is good, with quality practical exercises, I found the videos very inefficient to learn most things. I understand that it's step by step for the general audience, but KA applies this very slow, remedial structure to everything. The throughput was so bad I quit many series because of desperation. Some MIT OCW recitation videos are exa…
As a society, we could definitely aspire to producing much better materials, but even though I myself would never use it, I’m glad that Khan Academy exists.