http://en.wikipedia.org/wiki/Wikispaces

Wikispaces Classroom is a social writing platform for education. We make it incredibly easy to create a classroom workspace where you and your students can communicate and work on writing projects alone or in teams. Rich assessment tools give you the power to measure student contribution and engagement in real-time. Wikispaces Classroom works great on modern browsers, tablets, and phones (wikispaces.com, 2014). 

They can monitor their students' work as it happens so they can give feedback, assistance, and encouragement as needed, while all the time focusing on the work of the classroom, not the tools (wikispaces.com, 2014).

Wikispaces Classroom is built around a familiar communications newsfeed that encompasses the work of the class and a private social network. Teachers get the tools to quickly communicate with their students as individuals and groups. Students get the flexibility to engage with their peers at their own pace without sacrificing privacy. The end result is more participation and enthusiasm in the classroom (wikispaces.com, 2014).