There are several platforms that provide free online courses covering various topics and school subjects . Openculture is a great place to easily access these platforms. In this list, it features "free online courses from the world’s leading universities – Stanford, Yale, MIT, Harvard, Berkeley, Oxford and more. This collection includes over 800 free courses in the liberal arts and sciences. You can download these audio & video courses (often from iTunes, YouTube, or university web sites) straight to your computer or mp3 player."
Courses are arranged into numerous categories including:
- Classics Courses
- Math Courses
- Communication Courses
- Design Courses
- Economics & Finance Courses
- Education Courses
- Geography Courses
- Health Courses
- History Courses
- Writing & Journalism Courses
- Language Lessons
- Literature Courses
- Media Studies Courses
- Music & Performing Arts Courses
- Personal Development Courses
- Philosophy Courses
- Sociology Courses Biology Courses
- Chemistry Courses
- Chemistry Courses
Check this page for the full list of the free online courses.