On Wallwisher, you could have groups of students have a laptop with Wallwisher up. Then as they discuss a question about a reading or something they learned they could put their replies on Wallwisher as a group or on their own by taking turns. You can tell them that they need to write name, initials, period number to identify them.
Wallwisher: What is the author's message?
Students can use Today's Meet similar to Wallwisher. They can reply to a question etc. I set mine to stay up for a year, but you can easily set it up for a week and students will have a week to reply to the starter question or add to the discussion.
Today' Meet: Chio 6th Grade Language Arts
Kids like to use things other than paper to respond to questions. Also, this allows students to see what everyone else is saying or thinking.