Many people harbor unquestioned notions about what traditional letter grades (US) mean in terms of student performance. For example, many people have heard of a 'C' average, but the term actually refers to a time in history, usually in a classical education setting when instructors used a strict mathematical average to determine student grades. This average used a strict bell-shaped curve. The top achieving student set the mark for the group. In that setting 7% of students would receive "A", 24% - "B", 39% - "C", 24% - "D" and 7% - "F." The spread in this system could be wide or narrow, but generally made for long examinations so a sufficient number of responses could allow instructors to divide students into the correct group. This system also fostered a large amount of competition among students as well as a strong incentive to cheat. Students who scored well on tests were generally not liked because they skewed the curve to the high end and drop outs were a problem because it left the lower scoring students fighting to stay out of the "F" group.
It would be rare in American public education, to find an instructor who still graded this way. Most teachers are left to their own devises to determine how grades will be assigned. Since teachers are a generous lot, for the most part, they'd like to see most students pass and in fact, do very well in school. It reflects on them as teachers as well as the school and the students. Therefore, the traditional grading system has gotten out of kilter and the bell-shaped curve has flattened on the high end. Some see this flattening as grade inflation (as in monitary inflation when the value of a currency goes down when there is too much script in circulation).
Search Encyclopedia
|
Featured Article
|