An informative site that is filled with many videos delving into a variety of topics. This site is often suggested by teachers and professors as a supplementary learning tool.
This site caters to various types of learners with videos for visual learners, the insight and commentary by the instructors and the challenging examples worked out in just about every section.
Overall Khan Academy is an invaluable site for anyone looking to learn something new along with other people of the same goal in mind!
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.