Today's Meet is an awesome and free "backchannel" tool that has upgraded its features -- now we can control who signs in and we can close room and monitor multiple rooms from one screen. Give it a try!
This is a fun tool to use with students that is ad free and educationa-friendly. Create your own chat room and use it as an exit slip, a way to brainstorm or as a backchannel in a class learning activity.