

In addition to free courses, edX also offers courses for a fee.

Open edX is the open source platform behind edX, and it's open to educators and technologists who want to develop new educational tools. edX has more than 20 million learners and 2,400 courses from a majority of the top-ranked universities in the world. Sample Free Courses: Algebra, Geometry, Statistics & Probabilityįounded by Harvard and MIT, edX is a global non-profit that seeks to remove three barriers of traditional education: cost, location and access.

Khan Academy is a non-profit whose missions is "to provide a free, world-class education for anyone, anywhere." Khan Academy is free for both learners and teachers, and offers lessons for students from kindergarten through early college, with topic including math, grammar, science, history, AP® exams, SAT® and more. Khan Academy's founding partners include, among others, Bill and Melinda Gates Foundation, Google, Ann & Jon Doerr and Reed Hastings.
