Hi everyone! Sal Khan here from Khan Academy. I’m here to remind you that we are a not-for-profit organization with a mission to provide free, world-class education to anyone, anywhere. Despite our limited budget, we have ambitious goals to reach hundreds of millions, and eventually billions, of learners. If you believe the world needs an institution that creates more light than heat, please consider donating to Khan Academy. Your support is essential to help us serve these hundreds of millions to billions of learners.