Khan Academy a non-profit educational organisation founded in 2006 by Sal Khan with the goal of using online solutions to provide free, quality education for students around the world. Khan Academy resources have been translated into over 30 languages and have helped millions of learners across the globe access learning tools that have allowed them to reach their full potential.
Khan Academy produces lessons in the form of videos while also providing additional exercises for learners and material to aid teachers. These lessons cover a broad range of subjects, including Mathematics, Science, History and Economics.
Their courses on Alison focus on science, technology and finance and have been created to aid professional development in those sectors.