2.3.1 Collaborative writing using Wiki

A Wiki is a collaboratively created and edited document. You can add a Wiki to your Moodle course to, for example do a group project or write a combined essay.

Basically, a wiki page is a web page everyone in your class can create together, right in the browser. A wiki starts with one front page. Each author can add other pages to the wiki by simply creating a link to a page that doesn't exist yet.