2018 UPDATE!
​Socrative has released a PRO version, which includes all of the features of the free version, along with the capability to add extra rooms, accommodate 150 students, allow quizzes to be running simultaneously for multiple different classes, and a whole bunch more time-saving and user-friendly tweaks and tools to make using Socrative in your classroom easier. 

​The feature I'm loving the most in the PRO version is the ability to assign quizzes to a variety of classes ahead of time and leave them running for students to access outside of class, instead of having to constantly switch back and forth between quizzes.

I love Socrative! It's a fun, easy way to check for understanding and to deliver lesson content. Socrative is an online quiz tool. It also has student and teacher apps, so it's easy to use on any device. I love that it doesn't require student accounts and requires minimal student information, so it's quick and easy for students to jump on and use it.

Basically, you create a quiz/survey/quick question/exit ticket and 'start' it, students log in to your 'room,' complete the quiz, and you see the results in real time on your screen. You can access the data any time and you determine how much information and feedback is displayed to students as they're completing their quiz. 

I love this tool and it's easy to use, the kids enjoy it, and it provides detailed information on student understanding that I can review and refer to any time, however, if you have issues with your school network, it can be painful to get all students on and working in a timely manner.
​Check out the Socrative site for more information.