Kahoot is an app that allows educators at all grade levels to turn their in-class assessments into a fun game, accessible from any computer or smart device.
From the website: "Millions of teachers and students unleash the magic of learning with Kahoot!. Create your own Kahoot in minutes or choose from 100+ million ready-to-play games. Engage students virtually with our distance learning features, play in class, and dive into game reports to assess learning."