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Graspr is an online video community that offers high quality instructional content on a wide range of topics. Our mission is to make the world a smarter place by bringing together people who possess different kinds of expertise, and helping them share what they know with others. We want to make knowledge more accessible, and thus empower users to explore new interests, cultivate new skills, and become even more proficient in the subjects they know well.

The Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education to anyone anywhere. All 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.