When using abbreviations or acronyms in a sentence, be sure to indicate this in the HTML using ABBR and ACRONYM, like this:
When in Boston, be sure to visit the MFA, MIT and, of course, the W3C. These destinations are easily reached via Mass. Ave. or Mem. Dr..
And the markup would look like this:
When in Boston, be sure to visit the
<ACRONYM TITLE="Museum of Fine Arts">MFA</ACRONYM>,
<ACRONYM TITLE="Massachusetts Institute of Technology">MIT</ACRONYM>
and, of course, the
<ACRONYM TITLE="World Wide Web Consortium">W3C</ACRONYM>.
These destinations are easily reached via
<ABBR TITLE="Massachusetts Avenue">Mass. Ave.</ABBR>
or <ABBR TITLE="Memorial Drive">Mem. Dr.</ABBR>.
Access Note: in the near future, browsers will let you choose to have the abbreviations and acronyms expanded automatically.
Or, provide the expansion (especially of the first occurrence) in the main body of the document (i.e. the way you would if you were not using HTML).
To Checkpoints for Guideline 4.Next slide: Example for Checkpoint 4.3