You don't get picked on by your teammates for getting a B or a C in calculus, usually (there are contexts where it happens, but it's much much rarer).

Calculus isn't a required course and as such has less of a pressure to "pass everyone". You don't get an A in pre-algebra either just for trying, but since everyone has to take it if you're trying then you're unlikely to get held back on that class even if most of your answers are wrong.

I'm fine with coaches grading on performance. It's a proxy for effort + talent like a lot of things, and as non-geniuses know effort extends outside the classroom proportional to your talent. If you can't even get a 20 minute mile, you're going to have to put in more effort outside the classroom, which might involve refusing to eat 100% of mom's delicious huge dinner or doing "exercise studies" (i.e. working out outside of class).

Whether gym class should be required is another discussion. I don't think it should be (and that easily filters out most people complaining about being graded for performance anyway) and it's a pretty poor attempt at managing rising obesity rates.

I was giving calculus just as an example, I was referring to a general subject in school where you have to study and do your homework in order to get good grades. I am pretty sure most of those who got low grades in gym classes did not bother to do any "homework" to make themselves prepared to the next class (e.g. practice catching the ball, do pull ups etc). It's the same with kids who had bad grades at subjects that required thinking, they did not bother to do their homework and were not really interested in reading, studying etc...You should look at the issue from both perspectives

There's the slight difference that calculus does not depend on your current hormonal situation, while sports does.

Growth spurts wreak havoc on coordination ability, and it's entirely beyond the person's control.

(We're not even talking about the fact that you don't get a grade based on how well you answer the question in calculus, either. You get graded on understanding, and steps involved, even if you get the wrong answer. Or at least you get graded that way in sane school systems)

> calculus does not depend on your current hormonal situation

What if your testosterone wants you to run, jump and play with your friends instead of sitting and reading calculus books?

This is a good part of the reason girls tend to do better in school than boys. I don't know if there's a great answer; if you don't find effective coping strategies then you will suffer.

I would think that the ultimate objective with physical education is to engender in kids a lifelong fitness habit. Given that once you leave school there really isn't much nowadays forcing people to get regular exercise, the only thing that really matters is that it's fun and rewarding.

I don't know why you'd grade kids at all on anything but their participation. Punishing a kid for being weak or poorly coordinated serves only to make them resent getting exercise.

You typically don't get full marks in calculus for a correct answer with no working shown, and an incorrect answer due to a minor mistake where the working/method is correct generally gets a substantial portion of the marks.

The equivalent would be grading the running technique, pacing etc.

Because there are some factors that are simply out of ones control that affect athletic ability. Should students also be graded on how much weight they can lift? How flexible they are? How far they can hit a softball? Is it fair to let that affect their GPA in districts such as mine where three years of PE (or a team sport) were a graduation requirement?

Back to the time constraint. Some teachers would FAIL students who were consistently unable to complete a mile in under 10 minutes. Effort was irrelevant. I wasn't a heavy kid, but routinely crossed the finish line bright red, gasping for breath, and light headed.

So yes, putting your student's future academic and career prospects in danger due to lower than "average" athletic ability is utter madness.

This concept also applies to most things in adult life living in modern society. Results matter. You don't get a Series-A-for-effort in business.

Yes, you do. Let me just say the word "Color". Well, except it's not effort, it's connections.

If you think about it - you had to do pretty well in social/communication “subject” to earn those connections. Just showing an effort to get connections without actually providing any value will lead you nowhere as well

Ok, you got me on the connections part. Not sure what you mean by "Color" though, I must be out of the loop.