Here’s a 10 minute video tutorial by Greg Bird which focuses on the advanced grading Rubric within Moodle [docs]. In the video Mr. Bird highlights how to configure an assignment all the way through configuring and building the criteria for your grading rubric, viewing and submitting as a student and then marking as an evaluator.
Greg has a host of other elearning focused videos, including other tips related to Moodle. Check out his channel here: https://www.youtube.com/user/BirdyOz/videos
Direct video link https://www.youtube.com/watch?v=T4uBwK2uZYE