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  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > February  >
Chemical Education Today
Letters
Spreadsheet Grade Books: Billo replies
E. Joseph Billo
Boston College, Chestnut Hill, MA 02167

Cover
February 1997
Vol. 74 No. 2
p. 144

Full Text

Billo replies to Mitschele.

The Sort macro that I described (J. Chem. Educ. 1993, 70, 148) is not limited to dropping the lowest two grades. The macro merely orders each student's N quiz grades in descending order, so that the user of the spreadsheet can conveniently sum the highest M grades.

In my version of record-keeping, I use a zero to indicate an actual score on a quiz, and a blank to indicate an absence. I find this to be a useful distinction. The macro approach arranges the scores in descending order, so that when the lowest grades are "lopped off", it doesn't matter whether they are zeros or absences. The SMALL function, on the other hand, is like the AVERAGE function: it considers only the cells containing entries. It finds the smallest value(s) in the cell containing entries, and ignores the blank cells. Thus the above approach, if applied to my records, would not give the desired result.

But certainly, for users who adopt a different system, using the SMALL function may provide a compact and convenient way to handle the "best M out of N" quiz grade problem.

More Information
*  Citation
Billo, E. Joseph. J. Chem. Educ. 1997 74 144.
*  Keywords
*  History
Created:
Last Updated:
July 29, 1999
June 23, 2005
Link to Letter added (May 2004).
  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > February



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