Kahoot!

A Kahoot is a collection of questions on specific topics. Created by teachers, students, business-people and social users, they are asked in real-time, to an unlimited number of “players”, creating a social, fun and game-like learning environment (More about Kahoots) 

Create and play Kahoots using any device with a web browser… including a laptop, iPad, iPhone, iPod, Android, Chromebook, Windows Phone or PC and more — see full list.

Kahoot! | Game-based blended learning platform & audience response system