Revolutions problem y=-x^2+12x-35

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The discussion centers around a student's experience with a challenging calculus II midterm, where they scored 50% due to computational errors despite understanding the underlying concepts. The student expresses concern about potentially needing to rethink their major in electrical engineering after this setback. Responses emphasize that many students encounter difficulties on tests and that computational mistakes are common. Participants suggest that the student should not change majors based on one poor performance, especially since their foundational skills in precalculus and calculus I were strong. They advise the student to be more careful with calculations and to double-check work during exams. Additionally, practicing math problems thoroughly and staying organized can help reduce errors in the future. The conversation concludes with a positive note as the student later reports achieving a 96% after receiving partial credit.
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Urgent! Advice Needed

I am currently taking calculus II, and didn't do so hot on the midterm yesterday. I had to take the test on webassign(proctored). The instructor says partial credit will be given, but my webassign score was a 50%. I did not have a problem with the calculus involved, but the problems given were very computaionally intensive. For example::

I had a solid of revolutions problem y=-x^2+12x-35, so I made a mistake somewhere squaring that, I also had a partial fractions problem with a denominator of (x-1)^2(x^2+1), and somewhere in the 4 equation 4 variable system I made a mistake, and the list goes on.

I guess my question is, has anyone bombed a test solely due to computational errors. My mechanics in solving these problems were 100% correct, I guess I just had a bad day. I got an A in precalc and cal I, so this is my first bad expeiriance. I know some did pretty well on the test, now I am just wondering if I should rethink my major?
 
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You're panicking for no reason. If you like the technology involved with electrical engineering, and you're comfortable with EE courses than stay.

If not, change.
 


If your methods and mechanics were 100% correct, then there's nothing to worry about. Computational errors are silly, they shouldn't be the reason for you to change your major :smile:

Just be more careful with the computations next time :smile:
 


danerape said:
I am currently taking calculus II, and didn't do so hot on the midterm yesterday. I had to take the test on webassign(proctored). The instructor says partial credit will be given, but my webassign score was a 50%. I did not have a problem with the calculus involved, but the problems given were very computaionally intensive. For example::

I had a solid of revolutions problem y=-x^2+12x-35, so I made a mistake somewhere squaring that, I also had a partial fractions problem with a denominator of (x-1)^2(x^2+1), and somewhere in the 4 equation 4 variable system I made a mistake, and the list goes on.

I guess my question is, has anyone bombed a test solely due to computational errors. My mechanics in solving these problems were 100% correct, I guess I just had a bad day. I got an A in precalc and cal I, so this is my first bad expeiriance. I know some did pretty well on the test, now I am just wondering if I should rethink my major?

Everyone has bad tests. Still, you must have made a lot of computational errors to receive a 50%. Were you rushing through the problems? If so, why?

I usually attribute computational errors to not being careful and organized. In this sense, I don't think your question about whether you should change your major follows from the the issues you're having. Choosing another major would only be a reasonable solution if you no longer have any interest in electrical engineering.
 


Next time just make sure to double check everything as you do the problem. I personally don't like to double check after I've finished the test, I found it much easier to force myself to double-check while I'm doing the problem.
 


If you like what you are studying, you should stick with it. But as you continue taking exams in engineering courses there will probably be many opportunities for computational errors. I might suggest that, whenever you are reading your textbooks or lecture notes, you work through all the steps of the math yourself as a way to continuously practice. You will probably become faster and more accurate.
 


Ended up with a 96% after partial credit. Maybe I should relax. Thanks!
 


WEBASSIGN SUCKS, does not give partial credit whatsoever
 

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