You should consider creating the following accounts before you begin your research. These accounts will save you much time and effort when conducting research over the course of a semester, and will allow you to keep track of your work.
Retrieving an article from most of the library's databases is usually very simple. Look for a full-text or PDF option in the description of the article or a download option. Below are some examples.
Retrieving an article from an EBSCO database. (Above)
Retrieving an article from ScienceDirect (above).