With a library of over 2,700 videos covering everything from arithmetic to physics, finance, and history and 253 practice exercises, the Khan Academy on a mission to help you learn what you want, when you want, at your own pace.
The Khan Academy a non profit education providing free world class education to make the world a better place.
ll of the site’s resources are available to anyone. It doesn’t matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get a leg up in earthly biology. The Khan Academy’s materials and resources are available to you completely free of charge.
Tags: arithmetic, biology, Exercises, finance, free, physics, School, student teacher, video, world class education

