I used to go on Khan Academy pretty often earlier this year, but now I usually learn by means of a textbook + writing down exercises in a notebook. Earned 2 Sun Badges and about 350k energy points so far, if you're interested in hearing about some measure of progress.
It's absolutely awesome for high school students, but it doesn't look like it can help much past the freshman or sophomore year in college. (Then again, what the heck do I know?) If LessWrongers are, on average, as good at math as I estimate them to be, then only the youngest of us can derive much benefit from it.
I don't think khanacademy is just for high school kids, or elementary or middle school. Everyone will forget, and almost everyone with a high school education or better will have gaps in their knowledge. Everyone seems to think that college is the end of their education, but that's false. As with everything you learn or master, you need to practice them, and khanacademy offers periodic reviews according to the principle of spaced repetition.
So, it's great for adults too, even if they're only in review mode for the vast majority of their life. When they sta...
Hello, I was wondering: how many of you are doing khanacademy?
Right now, I am about 2 weeks away from completing khanacademy altogether. 334 out of 380 concepts are completed, assuming that the KA team don't add any new content during the time period.
Are you guys brushing up your math on KA, and if so what's your progress?