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[Phys-l] assigning grades



Here's an admininstrative issue I am thinking about: a better system for determining grades so that a student always knows what their grade is at that point in the course. (At our school, we are required to report interim grades just after the one-third and two-thirds points of the semester.) I welcome comments on what you think about the pros or cons of the following system.

Assign a base number of points to every graded item. I suggest 1 point per homework assignment, 1.5 points per lab report, 10 points per in-class test, and 20 points for the final exam. (The number of points for an item can be adjusted for say a particularly long or short assignment.) I can now count up how many points a student has at any time and divide by the maximum possible number of points available by that date to deduce their grade. This is in contrast to my present system, where say their test average counts for 45% of their grade regardless of how many tests there have been up to that time. (This particularly doesn't make sense early in the semester when there's only been one test.) In other words, I'm going to weight each *individual* assignment, test, and lab for a certain number of points each, rather than weighting their homework, test, and lab *averages* for a certain number of points each.
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Carl E. Mungan, Asst Prof of Physics 410-293-6680 (O) -3729 (F)
Naval Academy Stop 9c, 572C Holloway Rd, Annapolis MD 21402-5002
mailto:mungan@usna.edu http://usna.edu/Users/physics/mungan/