Courses block
From MoodleDocs
The Courses block lists and allows navigation between all of the courses on which you are a participant (tutor and/or student), allowing one-click access to another course home page. There is a also the option to list All courses... available within the Moodle site.
If you have not yet been assigned as a particpant on a course you will see a full list of all courses so that you can your course easily.
See also Create your own course
