Your grade will be based on your percentage score which will be determined according the scheme summarized in the following table and formula:

Item	Maximum  Raw Score	Weight [%]
Unit Examinations (best 3 of 4)	300 Points	40
Homework (best 16 of 19)	288 Points	20
Observational Project	50 Points	10
Final Examination	200 Points	30
Quizzes	?	Treated as homework extra credit

Thus the formula which will be used to determine your percentage score is

Pct	=	40 × (Sum of 3 Highest Unit Exam Scores)/300 +
		20 × (Sum of 16 Highest Homework Scores and all Quiz Scores)/288 +
		10 × (Observational Project Score)/50 +
		30 × (Final Exam Score)/200.

    Your grade, based on your percentage score, will be calculated in two ways-on the absolute scale given below and on a class curve. You will be given whichever of the two grades is higher as your course grade. (In most cases in the past the two methods have yielded the same grade.) Thus a grade figured from the scale below can be regarded as a guaranteed minimum grade.

To check on your scores and class rank click on class standings.