Showing posts with label Math. Show all posts
Showing posts with label Math. Show all posts

Wednesday, April 4, 2012

Math Humor

If you've ever taken higher calculus ...


 

Thursday, September 29, 2011

I Call Shenanigans

Just to give you a fair warning, this is going to be a post in which I'm bitching about how something is unfair. In my defense, I think it really IS unfair. However, if you don't care, then move along.

I got my math exam back today. I was expecting a pretty good grade; there were 8 problems, and I figured I'd gotten 7 of them right, and a good bit of the last. I think it's pretty clear from the title that a good grade is not what I received.

Lets look at the one that I figured I didn't get completely. It was a substitution problem, and I knew I didn't have it all done. But I got the first part of it. And that was validated, because the grade wrote "close" by the part I had. Then gave me a 0/3. Nothing, at all, for being close. This is coming after the professor said that she was making it not multiple choice, so that she could give partial credit.

So yes, 0/3. And that leads to the other big problem, which is that the problems were all out of 2 or 3 points, so even if I did something tiny wrong at the end, I'd lose either 33 or 66% of that problem. Number 1, I went through all 8 steps correctly, on the 9th and final step, I forgot a t. Clearly correct in each step above. Because of the error in the last line, I got a 50% on that problem. Next one, there were 6 parts. Find 3 points, and then classify. I found all 3, classified one correctly, and flipped the other two classifications when I wrote them down. From my markings on the graph, it's easy to tell I understood but wrote them down wrong. Even so, and taking away full credit for both ones I flipped, I got 4 of the 6 parts right, so should get 2/3 points, right? Nope, I got 1 point, because each of the parts I got wrong was half a point, and they both rounded up. One problem seven, there were 5 answers to classify true or false, I got 4 of the 5 right. But it was only worth 2 points, so I got 50% on that one. And with the last problem, it was a story problem. I detailed out the drawing, translated it into an equation, a correct one. There was one step at the end which she didn't specify that was needed, which was to replace W with Winitial - 3 gal/min. I Put in W instead of 50 gal, (as it was on the in class review) because I knew it would change. But, she wanted that extra step. And so by not doing that last step, after doing everything correctly, I got a 50% on that one.

All the problems added together were 20 points. Had they each been worth 5 times more, 100 points, and I could lose points percentage wize, I'd have given myself an 80. Because we could only lose points in chucks of 5%, I got a 12/20, or a 60%. I call shenanigans, and I'm considering dropping the class. Right now it will be an incomplete (equivalent to a widthdraw), which won't impact my GPA. I can try to take it again next semester, or possibly over the summer online. This isn't material I will be using for my career, so I couldn't care less if I understand it, I just need the grade. The problem is that even with understanding it, this professor is going to fail me.
 

Friday, April 8, 2011