KhanA exercises

Well, I don't know, try to write a game and see what happens I guess. This question can't really be answered by anything other than "it depends". Besides, there's a world of difference between theory and application (it's important to know the theory, but you'll still be doing a lot of reading while trying to solve an actual, real problem you're having, believe me).

Put differently, knowledge without action is futile, so I'd say try and put the ideas you discovered in your books into application every 100 pages or so (not a full game, even just a prototype which implements some algorithm you learned about, that kind of stuff) but that's just my two bytes.

What are Khan exercises? Is it like yoga for the mind ;)