GRADE SCHEME:
For each student, we will calculate the grade in two different ways
and then use the max of those two ways. Here are the two methods:
Method 1: HWK 15%; QUIZZES 15%; TWO MIDTERMS 20% each; FINAL 30%
Method 2: HWK 15%; QUIZZES 15%; MIDTERM (best of two) 30%; FINAL 40%