Sogui wrote: a single, subjective judgment by a professor on a certain part of a certain answer you gave could ultimately be the factor between an A- and a B+ for an entire semesters work. Furthermore that difference in all likelihood will be the reason you are turned down for a summer job for at least one of the positions you really wanted to get.
I know that's pessimistic thinking, but if I don't wonder about it now I know I will be when I don't that call back and my friend who did slightly better does.
On top of that, a professor might just plain screw up your grade and you may never know it. First semester of 1L my legal writing grade changed from a C+ to a B. The professor gave me the wrong person's points. I personally didn't even know it had happened. The prof checked herself because she knew me really well and just couldn't believe I got one of the lowest grades in the class.
Second semester of 1L I had one of my grades change from a B+ to best paper. The professor apparently added up my points incorrectly. Only reason I found out was because he actually tallied all the points on the paper, and when I went for exam review and added them up, the number on the front didn't match the tallied number. BTW that exam was one that I was sure I did terribly on...I was actually really happy and shocked that I ended up with a B+. That one grade took me from just outside the top 1/3 to just inside the top 25%...so moral of the story is, take advantage of exam review.
You 1L's need to go sit down somewhere talking about you "dominated" an exam. The fact of the matter is, you dont know, and you won't know until grades come out. You're graded against your peers, and there is always someone who sees something a bit differently than you saw it. All you can hope to do is come out of each exam with the feeling that you prepared yourself as best you could.