What role do polls and surveys play
Do they help course delivery?
I have found that they CAN break the train of thought if they now have to figure out HOW to take the poll or survey.
However, if us instructors can have it appear and disappear smoothly, it definitely helps engagement. We are asking the students to give their opinion. They like to give their opinions. Also, if they expect that there will be more polls later in the instruction, they are motivated to pay attention.