Here is the MLA interactive style guide:
Yes, you do need to submit your papers in MLA form, with a title, heading, page numbers, Works Cited, etc.
This guide (in the link above) shows you what everything should look like; if you need more specific rules, Google them! (You can Google "how to cite a class lecture in MLA form," for example....)
Hang in there! You're almost done!! :)