Classmates are aware to look on the right side of the home page for the names of fellow classmates that have "updated" their profile.
However, when they click on the fellow classmates name and go to that profile they have informed me that they can NOT detect where in the profile new or update information is being presented. Is there a way to "highlight" where specifically WITHIN the profile the new or updated information is being presented?

We do not highlight anything the first time you visit a profile. Otherwise, the entire profile would be highlighted. I suspect that's what was happening here. On subsequent visits new items are highlighted in yellow.