I remember seeing a talk from him (at least I think so or my memory is going to mush) saying he decided to get into giving MOOCS because Khan Academy was so popular and so absolutely terrible. Seemed like hubris at first blush but I gave him the benefit of the doubt and enrolled.
I've ended up doing quite a bit with Sal Khan & Co and have no hesitation is recommending it. (& Co includes Grant Sanderson who has branched off from multivariable calculus at Khan to the whole 3b1b youtube phenom, which is great and also I believe Ben Eater who is also terrific). I didn't get very far with Devlin's coursera MOOC or see the value myself but others mileage may well vary. If you got something useful out of it, please tell us what so those of us who didn't have some chance of seeing the point we missed? But maybe a lot of these kinds of things come down to style and taste?
I've ended up doing quite a bit with Sal Khan & Co and have no hesitation is recommending it. (& Co includes Grant Sanderson who has branched off from multivariable calculus at Khan to the whole 3b1b youtube phenom, which is great and also I believe Ben Eater who is also terrific). I didn't get very far with Devlin's coursera MOOC or see the value myself but others mileage may well vary. If you got something useful out of it, please tell us what so those of us who didn't have some chance of seeing the point we missed? But maybe a lot of these kinds of things come down to style and taste?