NOTE:  In reporting the averages from the test we drop
       the lowest scores.  This is because 25% (1 out
       of 4) of all scores will eventually be dropped.
       In comparing your average with the class average
       you need to compare with an average which is
       representative of the final average.  Dropping
       the lowest scores before reporting the average
       is one way of estimating the effect of the final 
       drops.  These posted test averages are not used 
       in any way in computing the final overall class 
       average.  GBA

1st test

          167 students took test 1 

         Multiple Choice
            130 students earned 27 or more points

                for those 130 the average was 65.9%


            123 students earned 13 or more points

                for those 123 the average was 53.6%

       test 1 MC grades<>test 1 problem grades 

2nd test

          155 students took test 2

         Multiple Choice
            116 students earned 25 or more points

                for those 116 the average was 62.3%


            102 students earned 15 or more points

                for those 102 the average was 60.1%

       test 2 MC grades<>test 2 problem grades 

3rd test

          142 students took test 3

         Multiple Choice
            107 students earned 25 or more points

                for those 107 the average was 62.7%


            105 students earned 15 or more points

                for those 105 the average was 58.0%

       test 3 MC grades<>test 3 problem grades 

4th test  

          126 students took test 4 MC
          119 students took test 4 Free Response

         Multiple Choice
             88 students earned 20 or more points

                for those 88 the average was 48.2%


             67 students earned 13 or more points

                for those 67 the average was 42.1%

       test 4 MC grades<>test 4 problem grades 


      For the 120 students who took the final and had also
      taken 3 MC parts and 3 free-response parts, and had
      also earned 715 or more HW points, the final exam
      average is 

                  20.25 out of 40, or 50.6%.

       exam grades

 An alternative calculation of the Final Exam averages.


  120 students took 3 or more MC parts, and 3 or more 
      free response parts, plus the final exam, and
      had more than 715 HW points.

     For those 120 here are the averages:
                       %      points

        HW           84.00    6.72

       RECITATION    78.90    5.52

        TP           89.20    4.46

        test         57.35   34.41 
        exam         50.63   10.13

     overall                 61.24 <-- final average

    The final grade scale was primarily determined by the
large gaps in the grade distribution.  Here is that final 
grade scale.  

      38.4 - 47.0   D
      47.1 - 62.2   C  (above 60.8 is C+)
      62.3 - 74.8   B  (below 64.2 is B-, above 72.0 is B+)
      above 74.9    A  (below 79.0 is A-, above 91.8 is A+)

Letter grades were assigned strictly according to this
scale.  The highest E is 36.6, the lowest D is 38.5;  the
highest D is 44.7, the lowest C is 47.1;  the highest C
is 61.3, the lowest B is 62.3; the highest B is 74.1,
and the lowest A is 74.9.  The smallest gap between
levels is 0.8 points between B to A.

    If you find a significant error in your recorded grades,
the best time to see me is before NOON MON Dec 20th.  After 
that time any change will require that we fill out a 
change-of-grade form.  For information on how to figure your 
final grade see


Here is the final grade distribution for the 120 students
who took three or more MC and free-response test parts plus
the final exam and had more than 715 HW points.

You may also view this column of grades as a text file.
 131 grade distribution 

You may also like to look at the Fall 2009 Class Averages.