Khan Academy has over 3,300 videos covering K-12 math, science topics such as biology, chemistry, and physics, and even finance and history. .
Khan Academy's mission is to provide free, world-class education to anyone, anywhere. With thousands of videos and step-by-step problems, their online materials cover subjects ranging from math and finance to history and art.
One user says, "I suffer from Dyspraxia, Dyscalculia, Asperger Syndrome, and all three killed any chance of success in public school. Since elementary school back in the late 50's, I failed school. I'm almost 59 years old, a full time college student, and with the fall semester last year using this website, I succeeded in getting 98% for the first time in my life. Unlike this time last year, unheard of! Now that I'm a full time college student, using this website, I'm finally climbing out of the darkness of which I'll always face, but now it's lighter."
Donate now to bring free, quality education to people at any age!