Sleep Tonight. Crush the Test Tomorrow.

cute_baby_sleepingIn case you think I’m kidding about going to bed early tonight, here are a few links about the importance of adolescents getting sufficient sleep. For example this, from PBS:

 In experiments done at Harvard Medical School and Trent University in Canada, students go through a battery of tests and then sleep various lengths of time to determine how sleep affects learning. What these tests show is that the brain consolidates and practices what is learned during the day after the students (or adults, for that matter) go to sleep.

Here’s another one from NPR, and one from the National Sleep Foundation.

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AP Test Prep Dates

screamIt’s time to begin our after-school test prep sessions. These will be in Ayers’ room from 3:00 – 4:00. Each session will focus on a different component of the exam.

The dates are April 8 (Monday), April 11 (Thursday), April 15 (Monday), and April 18 (Thursday).

Finally, on Saturday, April 27, we will meet at the Iowa Memorial Union in Iowa City to run through a full practice AP Lang exam. The test itself will run from 8:00 – 11:00, followed by a one-hour debriefing/discussion.

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Tropes vs. Women in Video Games

Here’s the web video I mentioned, by Anita Sarkeesian: “Damsel in Distress: Part 1 – Tropes vs Women in Video Games.” If you like her work, go visit her blog.

What’s a trope? Here’s a short answer. Here’s a longer one.

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The Bechdel Test

If you missed (or wanted to re-watch) the video featuring the Bechdel Test, I live to serve:

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Required Reading: Statistics and Inferences

In a blog post on the New York Times‘ site today, Nate Silver raises cautions about the use of statistical evidence in an argument that could be very useful to us. He’s discussing the debate before the Supreme Court right now regarding the Voting Rights Act, which is far afield of our recent class discussions. But his warnings about what conclusions we reach based on statistics are very relevant, including his point that “the act of citing statistical factoids is not the same thing as drawing sound inferences from them” (¶4). Silver’s example, from late in the piece:

Most of you will spot the logical fallacy in the following claim:

No aircraft departing from a United States airport has been hijacked since the Sept. 11 attacks, when stricter security standards were implemented. Therefore, the stricter security is unnecessary.

As much as I might want to be sympathetic to this claim (I fly a lot and am wary of the “security theater” at American airports), it ought not to be very convincing as a logical proposition. The lack of hijackings were in part a product of an environment in which airport security was quite strict, and says little about what would happen if these countermeasures were removed. The same data might just as easily be cited as evidence that the extra security had been effective:

No aircraft departing from a United States airport has been hijacked since the Sept. 11 attacks, when stricter security standards were implemented. Therefore, the stricter security is working.

Go read the whole thing.

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#pennywar

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Exposition by Analogy: Michio Kaku on Big Think

Want to know what string theory is? Michio Kaku will tell you, but he might break your brain doing so.

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Argument from Authority

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Two Spaces Forward, One Back

One of my pet peeves is when people are writing and double-space at the end of a sentence. This in fact was a rule once upon a time, when typewriters used monospaced type. Slate’s Farhad Manjoo wrote a screed about this a couple of years ago, which I happily posted to Facebook, only to be told by beloved friends and professors that Manjoo and I could stick it, and they would continue to use two spaces, thank you very much.

But more interesting to me today is James Harbeck’s recent post about the responses to Manjoo’s piece on Slate. Their reasons include an appeal that might sound familiar…

It’s the final category of comment, though, that touches on a point that comes up quite often when language professionals talk with their clients and other people who might think they know what they’re talking about but don’t really. An exemplary comment is “Hey jackass. Us two spacers didn’t invent this practice. It was taught to us somewhere, more than likely in a typing class. So despite your assurances, I assure you that it is correct.

So here we have [music please]: argument from authority. Their teachers said it was true, so it must be right. After the initial exasperated snark, Harbeck makes the right and obvious point that not everything you’re taught is true, and calls these people on their appeal to a doubtful authority:

School teachers are not subject matter experts. They teach what is in the curriculum, which has been determined by school boards and politicians, and most of the time it’s right, and of course in order to teach it they need to know enough about it to teach it. Certainly most of what they will teach you is true (whether you remember it correctly is another matter). But they are not always right about everything.

But I think Harbeck went a bit far here, further than he needed to for the sake of his argument. First of all, Harbeck would probably agree that even highly credentialed experts are not always right about everything. But more importantly (at least to me, since it’s my profession being impugned here), he begins with too absolute a statement about the non-expertise of teachers. Surely he’s not suggesting, I tweeted this morning, that teachers are never experts? I can think of several examples to the contrary: one longtime colleague had a degree in linguistics before beginning his career as a teacher; another recent colleague held a Ph.D. in, I believe, psychiatry.

Beyond that, I pointed out that expertise is not binary. By that I mean–and this was a point left out of the presentation today–we oversimplify the issue by grouping only into two categories that we label “expert” and “nonexpert.” A first-semester freshman taking Intro to Rhetoric has less expertise where argument and persuasion are concerned than does the doctoral student who is teaching that class, so the freshman may see the doctoral student as an expert; however, the doctoral student has less expertise than her professor, who might have written several books on the subject, so she may not see herself as an expert. (More likely, the way people actually seem to work, she thinks of herself as an expert in the first context, and as a nonexpert in the second.)

Degrees of expertise are thus best seen as qualitative, and evaluated on a case-by-case basis. Think back to Anacharsis: Who is to be the judge of skill?

In any case, Harbeck was kind enough to write back and happily concede that point:

With which I heartily agree. Harbeck’s blog, by the way, is worth a look for all you developing linguaphiles.

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Peter Singer on Big Think

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