Re: Grading software for Mac

["Edwin R. Schweber" <EdSchweb@ix.netcom.com>]

Leigh Palmer wrote (in part):
> All physics teachers should learn to use spreadsheets anyway, so it 
> would > be a waste to invest in a separate grading application.

Hi:

     I use Excel (for Windows). My only problem is that it's too easy
to accidentally erase a grade. I wrote a macro to lock the cells when
I save the sheet. But I still sometimes have problems when I am
entering grades with the sheet unprotected.

     Is there any way to set Excel (or another spreadsheet)so that it
requires a combination of keystrokes involving the alternate or 
the control key before you can do anything to change a cell
to which something has already been entered?

     Thanks for any advice.

Ed Schweber (email: edschweb@ix.netcom.com)
Physics Teacher
Solomon Schechter Day School
West Orange, NJ