Try our Moodle practice course: 
Intro to Moodle for Students

We have built a practice course in Moodle that teaches students how to use Moodle for their classes. It's called "Intro to Moodle for Students". Any student can enroll themselves into this course and take part in activities to learn how to turn in assignments with Moodle, learn to take quizzes, learn the layout of Moodle, and more.

Below are links to Moodle Help Resources: