Numerade, a fully free online education platform, can support teachers’ success with asynchronous online instruction during COVID-19 school closures through its easy-to-use “Office Hours” feature. Office Hours allows teachers across subject areas to easily create videos on any topic using the recording and whiteboard system, create a playlist from the more than 300,000 existing videos within Numerade, allow students to input questions and ‘upvote’ the ones they want answered first, provide video answers that clarify understanding for the whole class, track student engagement, and more. Numerade also offers step-by-step video solutions to support students using popular textbooks and test prep books. To date, the platform has supported more than two million users worldwide.