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emmanation

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I bleed

Tuesday, October 4th, 2011

Tonight I proctored our first exam of the semester in Prob Stats.

My hands shook. My stomach hurt. Now that it’s over, I feel drained and a little nauseous.

Lest you think ‘proctoring’ is more complex than it really is, here’s what I did. I handed out tests. I told the class how to deal with a typo in the final problem. I answered individual questions, most of which were very straightforward. I collected the tests when the hour and a half was up.

Oh, I also announced when we had 45 minutes left, then fifteen minutes left, then 5 minutes left.

It’s not really a taxing job.

And yet – I was a wreck.

I so very badly wanted my students (I call them mine and I’ve lectured all of twice) to do well. I needed them to have learned something from me. I wanted the time I’d spent with them, during office hours or class or over email, to have cleared up any lingering questions that remained for them.

I really really wanted them to nail it.

When I had any reason to think that one of them was having a hard time – asking me a questions I couldn’t answer because it would be cheating, or staring really sadly at their paper – I wanted to help. I wanted to say “I’m so sorry that I didn’t, somehow, make sure that this was clear to you”.

Grading the tests just now was even worse. I kept thinking ‘damn it, I KNOW you know this – you answered it in class or on the homework or …’. I want to email certain students and say, look, I see exactly what you did here. I know why you thought this was the right answer, and here’s the part of the problem statement that you missed. Why don’t you take another look.

Of course I can’t do that.

Crockett says this makes me a good teacher – wanting success for all of my students. I think that it makes me a person who is not capable of becoming a teacher. I can’t feel this wrung out all the time.

Maybe it gets easier – but is that a good thing? Should you bleed for your students, or not?

(The moral here? Actual teachers (people who do this for a living and not just as an assistant for tuition) are under appreciated and underpaid. You know me – always saying things that everyone already knows.)

 

 

well, that happened

Thursday, September 22nd, 2011

Today I taught my first college lecture.

It was…. um….

It definitely happened.

I don’t actually have a great sense of how it went. I left about to cry – but I cry a lot lately, so that’s not a great barometer. Hey, is there air outside? Does that mean anything? No.

We have this thing that we use in class called inkSurvey. It’s actually part of what I’m writing research project on – all 40 of the students are given tablets for the duration of each lecture and there’s a web based program where they’re able to interact with us anonymously. It’s a whole big thing.

Via inkSurvey, one of them wrote ‘be our teacher for the rest of the semester!!’. That gave me the happys, you guys.

And then?

I fucked up two problems in a row, on the board.

I don’t know. My brother and Crockett have assured me that a teacher saying ‘I don’t know’ is not an unacceptable occurrence, especially if it’s followed by ‘I’ll look at it and get back to you’. Plus, as any anxiety ridden slightly obsessive graduate student would do, I double checked what I couldn’t remember and wrote up solutions and put them on the class site when I got home. And also emailed everyone. And also spent three hours this afternoon helping with homework via email.

Basically, I think I’m a good TA.

Just – I wanted everyone to leave that class thinking ‘damn, that was awesome!’. And it didn’t happen.

P.S. It’s Crockett’s mom’s birthday! Happy birthday, mama Crockett. You’re one seriously kickass lady.

 

Monty Hall

Thursday, September 15th, 2011

I think that Las Vegas is based entirely on the fact that people don’t understand probability.

“I have a feeling that I’ll get 7′s again!”

That’s not actually how it works.

Say you’re on a game show. You get to pick one door out of three. One door has money behind it, the other two have men with squirt guns.

You pick a door. The chance of you picking the door with the money is easy, right? It’s 1/3. Three doors, one guess.

The game show host decides to fuck with you. She says that one of the other doors definitely has a dude with a squirt gun, and asks him to come on out.

Then she asks you if you want to stick with your original choice, or if you want to switch to the other door.

You’re down to two doors now, right? One with money and one with a squirt gun dude. You’ve already selected one.

Do you switch?

Intuitively, I would say no. Why would you switch? You picked a door, stick with it, yo! Gut instinct and a desire not to get squirted won’t lead you wrong!

Mathematically, yes. You switch.

Why? Because you started with a 1/3 chance. That means that you had two chances to pick the wrong door. Even though you know, after the first squirt gun fella reveals himself, that you didn’t pick that wrong door, it’s still more likely that you chose wrong. If you switch, you end up with a 2/3 chance of winning. If you don’t, you’re stuck with your original 1/3 chance.

I hope that one day you’ll use this.

And then you’ll send me ten percent of your winnings.

 

it’s amazing

Tuesday, September 13th, 2011

Teachers assistant.

Co-teacher.

The first – the thing I am officially called (and paid to be, for that matter).

The second – the thing I am called in front of the Prob Stats class that I TA for.

There were quite a few reasons for the slightly elevated title (it was a decision made by my boss, not me). The most pressing was that I will be teaching a couple of lectures a month while she’s out of town, and they’re more likely to respect me if I’m not called a TA.

The first of those lectures is next week.

These students, who seemed so young the first week, now seem sort of … scary. They’re smart and stuff.

They ask hard questions.

If I were a TA, I could say ‘sorry, I’m just a TA’.

Obviously, calling me a teacher was a terrible idea.

wrong wrong wrong

Thursday, September 1st, 2011

Yesterday.

Am I right?

Seriously. Not only did I write a poorly thought out blog post (I had a point but forgot it on the drive to school and typed something while in class just so I could hit publish), I also got a perfectly nice TA at Purdue in trouble for doing me a favor (not on purpose!) and made a pathetic showing of solving a problem on the board in Linear Vector Spaces. Like, my professor crossed it out and wrote ‘the works of Satan’ next to what I wrote down.*

Sometimes I do or say things and afterwards I think, man, if I had only thought about that before opening my mouth or taking that step, I would have seen the error of my ways. Then I mentally yell at myself – THINK, Emma, THINK.

There are days, though, that even if I had thought about it I would have done it anyway. The perfectly nice TA got in trouble for giving me permissions that only his prof should have been able to grant. The professor was going to give them to me, but the TA beat him to it – and I didn’t know that it was an issue, so I mentioned it to the prof. In retrospect, the best I could have done was talked less – I couldn’t have realized I shouldn’t say that specific thing. I certainly couldn’t have performed better at the board unless I’d gone back in time to the night before and studied matrix inversions – but I chatted to the class while I made my attempt and in retrospect that probably makes my failure more memorable.

Hmm. Maybe talking less overall is a good idea.

I should look into that.

* That is not a joke. He really really loves Dana Carvey’s Church Lady.