Teachers have the option of selecting a ready-made quiz from a library of teacher-generated ones - OR - uploading their own quiz from an excel spreadsheet. From there, students work at their own pace to complete the quiz questions on their own device (iPad, smartphone, chromebook, laptop, etc...). Then, the data is collected, automatically graded, and stored for teacher use.
This is an amazing tool that helps with data collection and test preparation. For more information, see the YouTube video or link to the Quizizz website below. Happy Quizizz'ing!