CS140 Final Grades - Spring 2011

Jim Plank

These are final grades for 2011, not 2012. It just gives you an idea of how the grading works.

My grading scale is as follows:

A+: 95 - 100
A: 90 - 95
A-: 87 - 90
B+: 83 - 87
B: 80 - 83
B-: 77 - 80
C+: 73 - 77
C: 70 - 73
C-: 67 - 70
D+: 63 - 67
D: 60 - 63
D-: 57 - 60
F: 0-57

Your lab score is converted directly to this scale by multiplying by 100/1030 (8 labs at 100 points each, 1 lab at 200 points and 30 points for evaluations).

Lab attendance was out of 100.

To convert the midterm and final to a score, I use the following routine:

double A = 90.0;
double B = 80.0;
double C = 70.0;
double D = 60;

double test_convert(double score, double top, double a, 
                    double b, double c, double d)
{
  if (score >= a) {
    return (score - a)/(top - a) * (100.0-A) + A;
  } else if (score >= b) {
    return (score - b)/(a - b) * (A-B) + B;
  } else if (score >= c) {
    return (score - c)/(b - c) * (B-C) + C;
  } else if (score >= d) {
    return (score - d)/(c - d) * (C-D) + D;
  } else {
    return (score)/d * (D);
  }
}

The midterm scores are converted with:

  test_convert(yourscore, 46, 35, 30, 24, 20);

and the final scores are convered with:

  test_convert(yourscore, 46, 38, 30, 25, 20);

I counted the midterm 25%, the final 26%, the labs 45%, and the attendance 4%.