Math 361 Exam 2 Results and Grading Information

Math 361 X1 Exam 2 Results and Grading Information

Exam Solutions

Exam Statistics

The scores below are all raw scores; the maximal score was 50 points.

Average score: 30
Highest scores:47, 44, 42, 41, 40
Lowest scores:8, 9

Grading Information

Curving: The raw score was converted to a curved score on a 100/90/80/70/60 percent scale as follows:

40/50 - > 45/50 = 90% (cutoff for A);
30/50 - > 40/50 = 80% (cutoff for B);
20/50 - > 35/50 = 70% (cutoff for C);
10/50 - > 30/50 = 60% (cutoff for D);

Intermediate scores were converted by interpolating between the above data points. (This was done by the computer grading program.)

Letter grades: The curved scores correspond to letter grades with plusses and minuses as follows:

97% - 100%: A+
94% - 96%: A
90% - 93%; A-
87% - 89%: B+
84% - 86%: B
etc.

Note: This letter grade correspondence is for your information only. The grading program uses the more precise numerical scores, not the letter grades, for all internal computations.

Accessing your scores

To view all scores you have earned to date, go to this URL:

https://www-s.math.uiuc.edu/bluestem/grades.cgi

There is a link to this site on the main page for this class. You will be asked to login with your Net-ID and password; this is the same login/password combination that you'd use when you register online. If the login is successful, you should see a display, similar to the following, showing all your scores you have earned to date, both raw and curved, and your current grade.


B1|Gates William   BILL| hw1:9/12 hw2:12/12 hw3:--*/12 
    hw4:--/12 exam1:38/50<41/50  average: 78/100=C+

This (entirely fictional) example shows that Mr. William Gates is enrolled in section B1 and has Net-ID BILL. Mr. Gates received 9 points for HW 1, 12 for HW 2, and 12 for HW 5; he got an excused grade for Hw 3 (indicated by the asterisk), and he did not turn in HW 4. (The latter counts as 0 points on this particular assignment.) On the exam, Mr. Gates' raw score was 38 points, and his curved score 41/50 or 82 percent, which, according to the above table, corresponds to a B-. Mr. Gates' current grade, listed at the end of the display is 78/100, or a C+.

The median scores for HW assignments were generally in the 10 - 11 point range. Most homework assignments were curved with cutoffs for A/B/C/D set at 11/9/7/5, respectively. At the end of the semester, the lowest HW score will be dropped.

Grading policy

See the Course Information Sheet for the complete grading policy. Here is a brief run-down: The three hour exams count 15% each towards the course grade; the homeowork assignments (minus one drop score) counts 20%, the final exam counts 35%. Each of these grade components will be individually curved. Your course grade will be the average of the curved grades for these components. Credit earned from extracredit projects will be taken into account by adjusting hw or exam scores.

Grade appeals: In case of a simple accounting error (such as an incorrect addition of scores, or discrepancy between your score on the exam and the score on the computer grade report), let me know, and I'll likely take care of it on the spot. If you have a question/complaint about the grading itself, see me after class, or during office hours. Most errors were not unique, and were graded uniformly.

Partial credit: Most problems could be broken down into several stages, and each of the stages was assigned a certain amount of partial credit. If you did not solve a problem completely, the partial credit you received depended on how many stages you reached before going astray.

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Last modified Fri 02 May 2003 04:53:55 PM CDT