gostava de saber quais as funcionalidades do moodle, sou iniciante n percevo nada disto
I recomend you to visit the portuguese forum for a portuguese driven presentation. That said, moodle people have many presentations about it.
http://www.slideshare.net/moodlefan/what-is-moodle-explained-with-lego-presentation
Read some of the official documentation on http://docs.moodle.org. It will give you lots of information about Moodle!