The point here, though, isn’t how effective your gym class was, or how much you loathed it. The point is, should you be graded for sinking the basket or for throwing the basketball? As gym is taught by the vast majority of American high schools, is there such a thing as a fair results-based assesment?
When I was in high school, we had to take one year of gym. So of course the class was full of freshmen and seniors, for the obvious reasons. There’s an obvious developmental problem there in grading for results. In addition, while state law mandates four years of English and one could take AP English, college prep English, tech prep English, English as a foreign language, or the English classes I suppose must have been offered as part of the all-day special ed classes out on the science wing, although I don’t know much about their curriculum requirements and they were at least not required to take gym with us, although there may have been some activity requirement. We had one gym class. It seems most of the posters so far had the same, although somebody did mention the presence of an advanced gym class required for those on sports teams. So keep in mind, I was in an AP English class with other students who excelled in English. I, who am sports-impaired, was in a gym class with Corey Jenkins. He’s one of the stars of the University of South Carolina football team now, but he excelled in all sports at the time. Think on that for a minute.
We did have a lot of basic skills work. (I may remain to this day the only person in the history of my high school to flunk the volleyball skills serving test by somehow sending it behind me into the gym teacher’s face.) We did have an “academic” component of testing on sports rules and such before we played each sport. We were pretty much graded on those tests and if we dressed out and got on the stupid court.
Results? Those of us who were athletically uninclined remained so. Those who liked sports continued to do so.
Possibly more important results? Despite the basic skills work, despite the general benign nature of dear Coach Inabinet (sorry about that volleyball, man), despite the inclusion of sports like street hockey and badminton that most of us gym losers enjoyed more than the other sports we were forced to play, I would rather eat a live centipede than play a competitive team sport. Is that because of my gym experiences? Well, I’m not crazy about activities that make other people get really competitive, but I do enjoy competitive games like Trivial Pursuit and the occaisional game of Halo that I don’t completely and utterly suck ass at. Being forced to do all this taught me mostly resentment and loathing at the entire concept, though.
Did it do anything for my lifetime fitness? No. I started going to the gym and doing yoga last year, years and years after gym (although my college is one of the last few with a gym requirement), because I was thinking about my long term health. Did gym teach me lifelong health skills and knowledge? Um, dosen’t everybody know physical activity is good for you? And, er, say no to drugs, man. And use a condom. (They ought to result-grade the sex ed component, I think.) 
So, I recieved no benefit from the class except a cute volleyball story. I did learn, through years of this (I only put it in the high school context because that’s what everybody else was talking about, and because I admit I appreciate the basic skills content of that class; I was otherwise forced to play eight years of baseball never really understanding what the hell I was supposed to be doing. Didn’t matter, from where they put me in the outfield) to resent sports, particularly team competition. I got a daily helping of shame, humiliation, embarassment, and ridicule. I never once, not once in my life, have served the volleyball over the net.
Instead of instilling a lifelong habit of activity and teamwork, it taught me a deep suspicion of it. Now, I realize that this thread is not about whether required gym is a positive thing or not, but understand that I’d have flunked it if I wasn’t just graded on dressing out. I was the one the teacher had to stay after class and into lunch for so I could finish that damned mile run. (Could we not just save me the humiliation? Could we not just put down “hopeless” and let me stop? Obviously if anybody needs to go eat their lunch and grow big and strong it was scrawny little me!)
Now, imagine if gym classes were tracked like math and English. If I had been placed in the special ed gym class, where I belonged, would it be fair to grade me on results? If I were in a class with all the other hopeless runty kids, and the class were geared to my level of ineptitude, would a grade like those in other classes with a percentage of “class participation” and “student improvement” and a percentage of, say, “basic skills test results” and some weight given to “on-paper test results” be fair? I think it would, if the class were designed appropriately. I think it would be wrong of me to complain about a poor grade recieved for not doing what I ought to be able to do (assuming that they’re right about what I ought to be able to do.)
But is that the purpose of gym class? What is school for, anyway? To educate? To produce an informed electorate? To produce well-rounded citizens? In that case, gym and art and band do have a place in the curriculum. But are we really trying to turn out sports stars? We have extracurricular activities for those who really enjoy athletics. Gym classes are, I assume, trying to teach the rest of us some basic health knowledge and encourage physical activity. Didn’t seem to really encourage most of us here, but I’m not arguing about the effectiveness, only the purpose. If that’s the purpose, then all you should have to do is show up and hit that volleyball. If gym is about results, then it should be tracked as other classes are to ability level. I don’t expect everybody to excel in the same English and math classes I took, but I do think that anybody in regular, non-remedial, non-special-ed classes should be able to do well in a basic reading or daily math skills class. Therefore, it is fair to grade me on my results in my classes and somebody with less natural academic ability on their results in appropriate classes. It is not fair or appropriate to grade me on the same scale in the same gym class as future professional athletes.