The purpose of Poll Everywhere is to allow for audience participation and feedback during a live session.
Questions can be asked and live visual feedback can be shown on screen to all.
In the free version users can gain up to 40 responses to a survey.
If you wish to use similar function for larger classes consider using adobe connect. These features are present.
The free accounts for this service are quite limited and will not allow you to save the responses received.
The following video describes the basic for use.
Anyone can create a free account at https://www.polleverywhere.com
If you have a class where you will have over 40 respondents, you will need to pay for an account or use an alternative service such as Adobe Connect.
There is no CSU based support for this service.
Help information for this service is found at: https://www.polleverywhere.com/support