Slido is a polling service that recently released a free Google Slides add-on and companion Chrome extension. The combination of the two tools makes it easy for anyone who uses Google Slides to quickly create and launch polls directly within the Google Slides editor. The thing that I like about Slido is that you can see your students' responses without having to toggle between presentation and editing modes in Google Slides. Your students' responses pop-up on the screen in realtime. Your students respond to your Slido poll or survey by simply going to Slido.com on their laptops or phones and then entering the code that appears on your polling slide.
Watch my short video below to see how easy it is to create, run, and respond to a poll made with Slido in Google Slides.