Archive for May, 2007

When it rains …

Monday, May 28th, 2007

This looks odd.

[GC inlet temperature]

That’s the screen of our gas chromatograph. I’m attempting to set up this instrument for my summer students to use, and I’ve just turned on the instrument. This is the temperature reported by the instrument for one of the injection ports. These ports are heated during operation of the instrument, but:

  • I had just turned the instrument on, and hadn’t yet turned on the heater – so the temperature should be about 22 or so degrees C.
  • Even if I had used the instrument, this injection port wouldn’t be 520 degrees C.

I pondered this for a minute, and the instrument decided to tell me something else, instead.

[PRT NOT FOUND]

If you’ve ever seen the movie Office Space, you know what my exact thought was at that moment.

PRT NOT FOUND? What the f–k does that mean?”

So I looked the message up in the manual. It’s actually in there. It means “Call your Perkin-Elmer Service Representative”.

Somehow, I get the feeling that I should have known that.

Sigh. When it rains …

Quick notes from the Teaching Professor Conference (Day 1)

Friday, May 18th, 2007

The usual Friday features are on hold again this week, since I’m off to the Teaching Professor Conference in Atlanta.

The first day here was a bit rushed – since our college’s group left South Carolina and left for Atlanta at 6:30 in the morning and had some pre-conference sessions to attend at 9 AM. It’s a good thing that traffic wasn’t that bad coming out of the airport!

Today’s big session was the pre-conference session given by Chris Anson from NC State. It was about a topic that nearly all of us would agree deserves more time in the classroom, but that a lot of us struggle to find time to add: writing.

Anson made the point that we should often treat writing assignments not as a tool to teach writing, but as a tool to get students to think about class topics and organize their thoughts. I agree with that point, but I find myself unable to implement many writing assignments in some of my classes due to a few factors:

  • Time. Instructors who teach labs usually have more hours actually in the classroom than other instructors. This leaves less time for reading student work and grading outside of class.
  • I spend a lot of time in my lower level course teaching basic math skills like unit conversions, and there just doesn’t seem to be a whole lot to write about converting centimeters to meters.

That said, I do intend to add more of a writing aspect to my courses. I’ve set up a blog for my courses, and students will be required – as part of their grade – to leave a few sentences worth of commentary after each class on whatever class topic I’ve posted about. They’ll also be able to ask questions of me and each other via the blog comments. (I admit that getting students to answer each other’s questions in a public forum might be an uphill battle!)

The class blog can also serve as a way for the students to interact with each other outside of class. Our college consists entirely of commuters – many from rural areas who drive half an hour or more to get to class. These students find it very difficult to get together outside of class, with the result that students don’t have much opportunity to help out other students. Perhaps this will improve student-student communication.

The best way to assess these online writing assignments will also be something I’ll have to think about for a few days. Since the purpose of these assignments won’t be to teach writing itself, I shouldn’t have to worry about grading grammar and spelling. I should only be looking at the ideas.


On an almost completely unrelated note, here are some views of Atlanta from the hotel window:

[Atlanta from the Westin Peachtree (Day)]
Day

[Atlanta from the Westin Peachtree (Night)]
Night

(Click to enlarge)

This will end badly, part 2

Thursday, May 17th, 2007

I haven’t had much time for posting recently, but there was at least one news item that caught my eye today. A little while ago, I posted about Georgia wanting to offer Bible classes in their public schools, saying that

Even if all the students are Christians, teachers run the risk of running afoul of the ways different sects of Christianity interpret parts of the Bible. (one example: Biblical literalists vs. old-Earth creationists). Add in complaints from the sprinkling of kids who have non-Christian parents, and you’ve got a recipe for nothing but trouble.

Some districts in Texas do offer Bible courses. How’s that working out for them?

Two advocacy groups filed a federal lawsuit Wednesday against a West Texas school district on behalf of eight parents who say a Bible course violates their religious liberty.

[…]

“Religion is very important in my family and we are very involved in our religious community. But the public schools are no place for religious indoctrination that promotes certain beliefs that not all the kids in the school share,” Doug Hildebrand, a Presbyterian deacon who is among the plaintiffs, […]

Georgia, meet your future.

Wallpaper: Sunset at Myrtle Beach, SC

Sunday, May 13th, 2007

Got South Carolina on your mind? Get South Carolina on your desktop, too! Here’s a sunset from Myrtle Beach, SC suitable for using as your desktop wallpaper.

[Sunset at Myrtle Beach, SC: 1024×768 JPG]

Click on the thumbnail to access the full-size image.

This is a companion to the picture we posted yesterday.

Wallpaper: Sunrise at Myrtle Beach, SC

Saturday, May 12th, 2007

Got South Carolina on your mind? Get South Carolina on your desktop, too! Here’s a sunrise from Myrtle Beach, SC suitable for using as your desktop wallpaper.

Sunrise at Myrtle Beach, 1024x768 JPEG

Sunrise at Myrtle Beach, 1024x768 JPEG

Click on the thumbnail to access the full-size image.

Relieve the pressure of the burdens on your house!

Saturday, May 12th, 2007

Here’s an interesting concept. For a fee, these kind folks will come toss bundles of straw onto your house.

[House wasing]

I hear that it relieves stress on the roof.


Wase \Wase\ (w[=a]s), n. [Cf. Sw. vase a sheaf.]
– A bundle of straw, or other material, to relieve the pressure of burdens carried upon the head. [Prov. Eng.] –Halliwell. [1913 Webster]

Grading in the Twilight Zone

Friday, May 11th, 2007

By now, you’ve probably seen this example of student “reasoning” on the internet somewhere.

[Find x - here it is!]

I don’t believe that one was actual student work. Clever and amusing, but not real.

Real examples of bizarre student work look more like what you’re about to see. This is one student’s “scratch work” – for which he presumably intends to obtain some sort of partial credit. This is all of his scratch work from the entire test.

[Scratch work]

Welcome to the Twilight Zone of grading. How many points do you think this student’s effort is worth? (You can probably guess how good this student’s actual answers were.)


Just so you know, I didn’t mistakenly give a chemistry lab exam to a second grader. I do teach only adults in my classes.

And no, there were no questions that related to butterflies, dogs, or pigs.

Friday cat: Department of Home Security

Friday, May 11th, 2007

The neighbors have gotten a new puppy. As a result, their cat Patches has been spending a lot more time in our yard. To protect against this threat, our cats have created the Department of Home Security. Its members are on tireless watch to prevent foreign felines from entering the territory of the United Cats of Shrimp and Grits:

[Tom and Ash protect the homeland]
DHS Agent Tom and DHS Agent Ash protect the homeland!

Since the Department of Home Security was founded, not a single foreign cat has wreaked havoc inside the house. Now if only something could be done about the havoc that the Department wreaks on its own…


Be sure to visit this week’s Friday Ark for more animal guardians!

Friday Cate: When you drink milk, don’t drive

Friday, May 11th, 2007

It’s the end of the semester, and I haven’t been properly updating the blog. But here, without further delay, is this week’s Friday Cate:

]Cate in walker]
Honest, officer! I only had one bottle!

Cate’s recently learned that she can rotate her walker around and move in different directions. She seems happy about it, too!

This will end badly

Wednesday, May 2nd, 2007

CNN has reported that Georgia has approved state sponsorship of Bible classes in schools. Why? Here are a few opinions from supporters of the idea.

“I don’t think you can understand Shakespeare, that you can understand a great deal of literary allusions or that you can understand a great deal of Western civilization without understanding the role of the Bible,”

[…]

“It’s going to challenge the faith of some students and it may foster the faith of others,”

Georgia hopes to skirt the obvious Constitutional problems with these classes by saying that

The classes must be taught “in an objective and nondevotional manner with no attempt made to indoctrinate students.”

My take? This will end badly. Teaching a Bible class to a set of students with diverse religious backgrounds without some of them (or their parents) seeing the class as a form of indoctrination will be impossible. Even if all the students are Christians, teachers run the risk of running afoul of the ways different sects of Christianity interpret parts of the Bible. (one example: Biblical literalists vs. old-Earth creationists). Add in complaints from the sprinkling of kids who have non-Christian parents, and you’ve got a recipe for nothing but trouble.

The schools will bail once they get slapped with enough complaints and lawsuits over the classes. This will occur only after a lot of taxpayer money is wasted on the whole process.


Having said all that, I actually do believe that knowledge of the Bible is helpful. (A great way to lead someone away from the path of fundamentalism is to have them actually read that book they’re being so fundamental about – all of it – and to learn about the history of that book.) But, I just don’t think that it’s possible in our current social environment to have Bible classes in public schools that don’t “indoctrinate” in some way. We have enough of a time keeping religious indoctrination out of biology classes. How the heck would we keep it out of a Bible class?