Moodle is a course management system (CMS) - a free, Open Source software package designed using sound pedagogical principles, to help educators create effective online learning communities. Moodle has a large and diverse user community with over 330,000 registered users on this site alone, speaking over 70 languages in 196 countries
Getting started:
1. Don't be afraid to experiment.

2. Notice and use these little icons:

external image edit.gif - the edit icon lets you edit whatever it is next to.
external image help.gif - the help icon will provide you with a
**popup help window**
external image hide.gif - the open-eye icon will let you hide something from student
external image show.gif - the closed-eye icon will make a hidden item available

3. Use the navigation bar at the top of each page