The effort of either individual assignment is being fulfilled. In other words, each teacher should be happy with the effort put into the paper they received.
For example, if both of my parents separately asked me to help out and mow the lawn, should I mow the lawn twice? The effort I am putting in is sufficient in the eyes of both my mom and dad with respect to their perspective of what they assigned. It is only my global perspective which acknowledges that total effort doesn't match with the doubled request. Ethically fulfilling a duplicate obligation doesn't have to mean doing it twice over.
Again, you're confusing the ends of tasks such as mowing the lawn with academic assignments. The goal of mowing the lawn is to have the lawn shorter than before. If both of your parents only wanted the lawn mowed, you would be right. It would be silly to mow it twice. But, if your parents, for example, wanted to punish you for fucking the dog on the front porch, and were using chores around the house, it would be unethical to not tell them that you've already done it. Can you see the difference here when the goal is changed? The first goal was to have the lawn mowed, the second was to punish you through labour.
Teachers in particular classes are not viewing their students only through the lens of their own class, but also through a global perspective. I don't know why you are choosing to view this through each teacher's perspective. A university or college is not merely a collection of independant teachers and classes, but rather an institution that employes a series of teachers and creates a series of classes. Remember, when a student is found cheating, the issue is reported to the dean and is handled on an institutional basis, not the individual class. The intent of a degree is to have students fully complete each of their required classes, and be awarded an independant grade for each that will culminate in a degree awarded by the institution. I suppose if a degree was not from one institution, but rather would show a collection of classes, you miiiight have a leg to stand on. Even then, I have my doubts.
Can I safely assume you would have no objections to recycling work that wasn't professionally evaluated? Say for instance, you adapt one of your posts here on TFES for a philosophy paper?
Yes, I have no objection to this and in fact have done it myself. However, the work I did here was created in parallel with the assignment it was used for, and merely acted as an interactive note page. I was able to sound board some ideas and arguments which I could then edit and submit for grades.
I believe we are disagreeing about the point of school. I'd say the evaluation is supposed to be an evaluation of the student's 'results'. Advancing their education is the goal (regardless of whether it is sciences or humanities).
I contend that school expects you to learn, demonstrate that knowledge, and sometimes demonstrate the ability to apply that knowledge critically. I see effort as a personal issue not a school issue.
Don't get me wrong; encouraging effort in the classroom is virtually always a good thing, but consider the students that are capable of doing perfect work with less effort. Is it right for them to be punished for not spending more unnecessary time on it? Grading kids on effort would artificially handicap the ones who are the most learned and capable, while rewarding the people who struggle more to learn the same material or produce the same results. Being part of the workforce doesn't account for effort. Do grades serve some non-work related function I'm overlooking?
I'd also say that grades should be as unbiased as possible, and attempting to evaluate the effort of students can be very subjective. If it were up to me, teachers would be blind to whose assignments they were grading. I contend their education and work-quality are the important variables, while effort is consequential to the rest of the world.
Nowhere have I argued that effort should be used as a grading criteria, beyond the fact that effort was demonstrated. Additionally, as for the purpose of post-secondary education, you are simply incorrect. I don't know if you are in enrolled in a post-secondary institution or not, but I can tell you that one of the key purposes is to demonstrate the creation of new knowledge. This doesn't simply mean discovering new facts or cures for things, etc., but rather to demonstrate an independent analysis of whatever is being studied. In high-school, for example, the primary criteria is the learning of established knowledge. In university the goal is to have a student analyze a situation, phenomena, etc., and produce unique thought on it. The key there is unique, in that it was created by the individual receiving the grade.
using the example of the genius that needs to put in virtually no effort, consider the following. Imagine being a grade school teacher and discovering one of your students is stunningly brilliant and is flying through the work without any effort or challenge. Would you simply be satisfied that they're completing all the assignments, or would you suggest they be moved up a grade or more? This happens all the time, where we see children as young as 15 achieving a university degree. We do this because the purpose of education is not simply to complete assignments, but to create and discover knowledge.
And of course the goal of grading is to be unbiased, but that doesn't mean blind. The bottom line point is that each class requires an independent piece of work that demonstrates the goal of the class: learning and creation of knowledge. Copying an online article or another student's work is obvious plagiarism. Why? Because it demonstrates that the student did not create a personal and independent piece of work. Submitting two identical assignments to two independent classes also fulfils the criteria that made the classic forms of plagiarism unethical. Never forget that the goal of a university assignment is not the same as a 'real world' goal.
I would think that as well. If human inventions (be they programs or androids) can actually "chose and create" to the same degree as the humans who made them, why give credit for their creations to the humans?
To answer your question, I would be inclined to give credit to those who are most directly responsible, and/or perhaps divide the credit by their measure of influence over the result.
I don't see anything here to argue against...though I don't really see the reason for even discussing it. In other words, I don't understand what's supposed to be provocative about it.