Hi Lori,
There are two ways to view the contents of other directories with ls.
You can change directories with cd to the directory of interest and then call ls there.
example:
cd path/to/directory/you/want/
ls
or
You can call ls path/to/directory/you/want
example: ls path/to/directory/you/want/
If you want more information on ls, you can (in another terminal) type:
man ls
Finally you may find this link useful (courtesy of Yoshiki):
Hope this helps,
Will