Grade Scales for Exams
MAP 2302, Section 5607 (17280)
Elementary Differential Equations
Spring 2020

The exam-grade cutoffs given below are the bottom for the "flat" grade, not the minus-grade. (For example, if the cutoff listed for a B is 50 points, then 50 is a B; 49 is a B-.) The A- cutoff is 1/3 of the way down from the A cutoff to the B cutoff; the B+ cutoff is 1/3 of the way up from the B cutoff to the A cutoff; the B- cutoff is 1/3 of the way down from the B cutoff to the C cutoff, etc. (except that I do not give D-'s; anything lower than the D cutoff is an E).

A cutoff like "90.5" in a grade-scale does not mean that any half-points were given to any student on the corresponding exam; it simply means that I thought 91 was too high for the cutoff and 90 was too low.

Each exam's average and median below was computed from the scores of only those students who took that exam. For example, zeroes for students who missed an exam without an acceptable excuse are not averaged-in.


Hour Exams (midterms)

A B C D class
median
class
average
Exam 1 (97 points)
87
(89%)
77
(79%)
55
(56%)
42
(43%)
81
(83%)
76
(78%)
list of scores
Exam 2 (108 points)
98.5
(91%)
90.5
(84%)
72.5
(67%)
57
(53%)
106
(98%)
96
(89%)
list of scores
Exam 3 (108 points)
94
(87%)
80
(74%)
58
(54%)
38
(35%)
85
(79%)
79
(73%)
list of scores

Final Exam (252 points)

A B C D class median class average
215
(85%)
182
(72%)
133
(53%)
88
(35%)
151.5
(60%)
151
(60%)
list of scores

Course (1000 points: each hour-exam counts for 200; final exam counts for 400)

The "points needed" line in the table below shows the points needed for each grade according to the grading system announced in the syllabus. That system did not anticipate a pandemic. I computed an initial grade for each student according to the formula in the syllabus, compared that grade to the grade the student was running up through the second midterm (the last exam before the transition to online classes and exams), and adjusted the student's grade upward if the pre-transition grade was higher than the one produced by the original grading formula (provided that the student took the final exam). The second line of the table shows how many students would have received each grade had I not made these adjustments. The third line reflects the adjusted grades, and shows the number of students who actually received each grade.

With these adjustments, the class GPA was much higher than it generally is for my MAP 2302 sections. On average, these grade-adjustments more than compensated for any ill effects that this semester's chaos might have had on grades.

The table the includes "A/B/C/D/E" grades for students who opted to switch to S/U status. (S/U students had their grades automatically converted by UF's computer system; grades of C or above were converted to S, while grades of C- or below were converted to U.)
A A- B+ B B- C+ C C- D+ D E
Points needed for each grade 875 837 800 762 696 631 565 510 456 401 NA
Number of students who would
have received
grade, if not for
the adjustments mentioned above
3 3 4 5 4 5 1 1 1 1 2
Number of students who actually
received grade
6 4 7 2 4 2 1 1 1 0 2

The two E's were students who did not take the final exam or contact me about it. Often this happens because students have petitioned to drop a class, but the petition has not yet been ruled on at the time the grade rosters are created.

I will not send or discuss grades by email. Your first two midterms were returned to you, so you were given your scores on those at that time (unless you were absent and made no attempt to pick your exam(s) up from me in my office.) Your scores on the third midterm and final exams are posted on Canvas. Any student who belongs in college knows how to convert a point-score into a percentage, and how to compute a weighted average, so you know how to compute how many points you've earned according to the weighting system announced in the syllabus. The syllabus and this grade-scale page give you all the information you need to understand how I computed all the "points needed" entries in the table. I am not entering everyone's course-grades into Canvas, since these will be made available to you by UF shortly (if they haven't been already).

The semester is over now, so if you email me a question that you should not need to ask me, you may not receive a response.

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