Do your classes say they require you to use MS office specifically or do you need an office application?
You can use OpenOffice or LibreOffice, both of which are great and can export and import doc and docx.
In case of emergency, you can always use school lab computers, or you can torrent it off kickass.to Website.
I mean you already bought the thing, right?
I'm sure the best thing to do, however, is to contact your school's support desk.