Quizizz is a wonderful site for creating multiplayer quizzes that I just found out about from Larry Ferlazzo's excellent blog. The way this works is an educator signs up and then creates/selects a virtual room or game. Once the room is created a unique code is generated that can be given to students to join. A educator has a choice to select a previously created game/quiz or create their own. Once the game starts an educator sees all results live and in real-time.
I highly recommend checking out Quizizz by clicking here!!!
Below is a brief demo video...
For my Pinterest board on Quiz Creators click here.