I want my students to be able to see their grades online w/o viewing the
entire spreadsheet. My intention is to hide the working spreadsheet, & show
them a sheet with the same column headings (quiz 1, quiz 2, etc.). The data
cells will populate w/ the data from the underlying hidden sheet when they
type in their (unique) student ID number.

I'm comortable w/ vlookup, but haven't used the other possibilities, like
index/match, etc., and now I need a way to find the student ID in the
worksheet, & return all the data in that row.