Keys will be posted outside CB 348 and on the web. Scaling of exam and recitation grades can sometimes occur, although it is not originally intended. Grades may be scaled up but they cannot be scaled down. The scores correlate with letter grades as given below. These are guaranteed minima.
Attendance has no direct contribution to grading.
Obviously, since lecture is the most important material, regular attendance is critical. This means that each student should be able to start each problem, work through each problem, and get the right answer to each problem in a reasonable period of time without looking anything up. Needless to say, this will not happen when doing many problems for the first time. This is normal and it is to be expected. Problems which cannot be readily completed should be flagged, and the student should redo those problems at a later time.