The Zero Effect


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In pondering, somewhat guiltily, why nearly half of his students are failing his class this year, IB a Math Teacher does a quick Excel calculation on his gradebook and finds the answer: If


he takes out all the zeros for missed assignments, quizzes, and tests, his students’ average grade—wait for it—"goes from a 52% F to a 81% B-.” But there’s not a whole lot he can do


about it at this point: > I can't excuse the missing work because some of them are > assessments. I surely can't figure out what they can do on their own > without those 


scores, so zeros and algebra failures they remain. Incidentally, Math Teacher is clearly not alone in identifying missing work as a major contributor to failing grades: A recent Associated


Press story about an Oklahoma middle school’s attempt to “eliminate the problem of zeros” has been among the most-viewed stories on edweek.org all this week.