- I compute the weighted sum of the exams, labs and homework.

For the relative weightings, see the introductory handout. - Exam #1 score. Maximum=100; counts 20%
- Exam #2 score. Maximum=100; counts 20%
- Exam #3 score. Maximum=150; counts 30%
- Lab Reports. Maximum=100; counts 20%
- Prob. Sets. Maximum Total=50; counts 10%
**Maximum possible total score: 500**

**Actual figure is the sum of the following:**- I rank-order the weighted sums (out of 500) from the largest to smallest.
- I look for GAPS in the rank-ordered sums and used them as boundaries.
- I assign grades to each cluster of rank-ordered scores between the gaps.

- Ensures no one is only a few points from getting a higher grade.
- The gaps between grades are usually several points (see below).
- A couple of students
*in*each gap will be treated separately. - Numbers off slightly due to rounding (makes no difference).

GRADE: | A+ | A | A- | B+ | B | B- | C+ | C | D,E |

# getting: | 03 | 28 | 18 | 23 | 14 | 12 | 21 | 15 | 05 |

maximum: | 494 | 478 | 438 | 421 | 384 | 364 | 345 | 298 | 239 |

minimum: | 486 | 441 | 426 | 390 | 372 | 352 | 308 | 258 | 133 |

Note the gaps in scores between grades, except for A/A- (always a problem).