Khan Academy is an American non-profit educational organization created in 2008 by Salman Khan with the goal of creating a set of online tools that help educate students. The organization produces short lessons in the form of videos. Its website also includes supplementary practice exercises and materials for educators. All resources are available for free to users of the website and app. Teachers can post their relevant subject quiz to their customized students with the class creating feature enabled as in Google Classroom.