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The Khan Academy website is a nonprofit endeavour with the goal of providing a “free world‐class education”. The website contains a library of free video tutorials on the subjects of math, science, computer science, finance and economics, test preparation and some humanities. The site's content level is for K‐12 learners, but teachers, principals, or someone needing a refresher can use the material.
Salman Khan, the site's founder, first started creating video tutorials when tutoring his young cousins and then decided to host them on YouTube for other relatives that needed assistance. Once on YouTube, the popularity of the videos grew,...
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