Learning To Rig (Outside of Lesson Plan?)

So I pulled up the Beginner's Guide to Rigging in Maya on Digital Tutors, and I don't really think that this is where I am supposed to be for the class. however, it's still some pretty good knowledge (knowing the usage of parenting in regards to rigging) and I think I'll go ahead with these videos.

You may notice that the video is the beginning of number 4/11, but the page I have open is the end of number 3.