Comment First to File (Score 4, Insightful) 97
If they don't patent this, someone else will. Because we now have a "first to file" system, where prior art doesn't matter if the prior artist never patented it. And no, educational methods should not be patentable, but if this patent is granted then they did the right thing. Cheaper to file a patent than defend against a troll later on.
Of course that doesn't mean the patent should be unopposed and shouldn't be given out to the public for free. Khan Academy has no business sealing up their methods as proprietary. But there are no white knights in the patent system. You can't not play the game, you can only lose it to the trolls.