Just like noises in the classroom can be distracting, sounds from remote locations can also be very disruptive. To minimize distractions and keep the in-person classroom and remote classroom as quiet as possible, make sure remote participants all have their mics muted. Of course, students should un-mute themselves if they have a comment or question, but otherwise, muting everyone (except the instructor) for most of the session works best. This will help prevent unnecessary interruptions and ensure that all students can easily hear and communicate.