I must apologize before writing the rest of this post. I'm frustrated and slightly angry (at myself, mainly) that I can't figure this out even with all the posts here about this very same problem.
Now, I understand this subject has been discussed many times before. However, I'm really feeling stupid, because I don't understand the posts that I've read about this. I really don't... The posts always seem to get away from the basics. I'm neither a coder nor a professional site builder. I just want to build MY site and learn as I go along. So far so good...until this problem.
The step-by-steps I have seen include the following:
1) Create a new term
2) Assign content to the term
3) A page full content with the following path taxonomy/term/TID will be created, where TID is the term number.
4) Create a menu item with a path to #3 above.
Okay, so... HUH!? A new TERM?? Where? Taxonomy? Sure, but to what vocabulary? What is a "page full content"? WHAT TID???????? Do I make one up, or is it already assigned? If assigned, it;s not in the Admin screen, that I can see anyway. Create a menu item with a path to #3 above?? To what? The page? The article? The TID number (assigned or not)?