This is a great addition to Google Slides. It doesn't appear to have rolled out to our district as yet, but you should see it relatively soon. Essentially it allows your audience to ask questions during the presentation. The video below will walk your through the steps. The other cool new feature on Google Slides is a built in laser pointer. Handy tool to have. You can probably see these new features on your personal Google account, but look for them in the upcoming week on your school accounts too.