Foundations of Mathematics Spring 2017
Comments on the second exam

Scores for the first exam have been posted on blackboard.  Exams will be returned in class on Tuesday, 4/11/17.  It is important that you come to class to pick up your exam because you are assigned to work with a group to write up a set of solutions that will be due Tuesday, 4/18.  Exam solutions are a required component for the course portfolio.  Specific directions are posted here.  

When you get your exam, please double check that I have added up the points correctly and also that the score on your paper is the same as the one posted on blackboard.  I try hard not to make errors totaling or recording scores.  But if an error has been made, I will want to correct it as soon as possible.

The exam scores are shown in the first histogram below, except for two scores that were below 65.  The second histogram shows, for each student, the average of their scores on exams 1 and 2.  For example, if you got a 90 on exam 1 and an 80 on exam 2, your exam average would be 85, and that would contribute one count for 85 in the second histogram.

exam 2 histogram

The first histogram shows that the class as a whole did pretty well, though perhaps not so well as on exam 1.  Over 1/3 of the scores are at 90 or above, and all but a few of the scores are at 80 or above.  As the second histogram shows, at this point nearly everyone is earning a satisfactory grade, and most are on track for a final grade of B or better.  

To interpret your exam score, you should understand my grading system.  As explained after the first exam, I work with a numerical scale from 50 to 100.  When I grade the answer to a problem, I first make a judgement as if I were assigning a letter grade to that particular item.  An A answer should receive between 90% and 100%  of the points;  a B between 80% and 90%, and so on.  So if you receive half the points on an item, that means I consider the response to that item as a fail.  Anything less than 70% on an item indicates your response was judged to be unsatisfactory.