jump to navigation

Why are the women so good? January 21, 2012

Posted by mareserinitatis in education, engineering, feminism, teaching.
Tags: , , , , ,
6 comments

I’d been thinking about writing this post last semester.  However, it slipped my mind until some trollish comments showed up on EngineerBlogs today.  I think that Chris, Gears and Katie gave the troll a good smackdown, but one comment bothers me:

few women are capable of handling these kind of demanding environment.

I’ve heard this before (pretty much since I started as an undergrad).  However, after teaching my class last semester, I have to wonder what the hell these people are talking about.

I had 90 students last semester, 5 of whom were women.  All five of those women were easily in the top 25% of the class and were more likely in the top 10% of the class.  They were the students who repeatedly handed in assignments on time and seldom (if ever) had to redo any of them.  I will say that none of them chose to do the programming – but that is likely because they had turned in all the optional assignments required for an A before the matlab assignments were given.

If anything, what I saw was puzzling to me.  The women seemed the most prepared to meet the demands of a college class, were able to communicate well both in written and verbal form (and one of them was a non-native English speaker), and contributed well and frequently to the class.  It was almost strange how they were on top of things when the majority of their male classmates were struggling.

I’ve heard it argued that the women most likely to be in engineering are generally those who are in the top of their classes.  Women who may be good at math but not outright brilliant will be swayed to go into other careers.  From what I could see, this was true.

If you listen to trolls on the internet, you get the impression that women are incompetent engineers, however.  The women in my class were some of the most competent and motivated students, but I admit that they were more passive than the male students, which I still think leads the male students (and probably later on, male professors) to believe that the female students don’t know anything.  But it’s interesting to hear this comments after witnessing the exact opposite of what everybody “knows to be true”.  I can only think that people who make these comments are really overestimating their own abilities or wrongly judging what it takes to be a good engineer.  Maybe both.

Outnumbered January 5, 2012

Posted by mareserinitatis in gifted, math, teaching, younger son.
Tags: , ,
1 comment so far

Today I’m going to be working with the elementary students again.  This will be interesting as I completely switched gears from what we were doing before.  The stuff we were doing before was fun, but as we move through the book, it looks like they need a lot of multiplication and division…which most second graders don’t have.

Today, we’re going to learn about other number systems.  In particular, I’m going to have them pick a number using Indo-Arabic numerals and ‘translate’ into other numbering systems – Egyptian, Roman, Babylonian, Mayan, and Chinese.  This will give us an opportunity to talk about different bases, positional numbers (i.e. the concept of place value), and how many systems don’t have a zero.  (Although, there’s debate in some cases.)

After doing the prep, I’m SO glad that we don’t use the Babylonian system.  Base 60?!  No wonder my math professor got annoyed when we used degrees.

Thanks to the MacTutor History of Mathematics Archive for the picture!

Lessons learned: teachers need organizational skills, too December 19, 2011

Posted by mareserinitatis in education, teaching.
Tags: , , , ,
3 comments

I have now developed a greater understanding of a strange professorial quirk that I observed over the years. I had at least one professor each term who would get visibly annoyed if you tried to give them an assignment at any time other than the first thirty seconds of a class period.

My understanding is due to that fact that I have recently become eligible to join the Super Secret Society of Teachers Who Have Lost a Student’s Assignment.  (I’m suffering from a cold, so I was unable to come up with a snappy acronym.  Please feel free to make an effort on my behalf.)

*headdesk*

When I was teaching geology labs, I was usually teaching four sections each week in a different building. I found that the best way to keep track of student work was to have four plastic filing envelopes. Each envelope was a different color, and I always knew which one to grab before each class.  At the beginning of class, I’d hand stuff back.  At the end of class, it would all get filed away in my envelope.  This was straight-forward, and I never lost any homeworks this way.  The labs were done in class and handed in at the end.  If they had to hand something else in, it went into my mailbox, which was in the same building as my office (but different than the labs).

This semester, I had 90 students in four classes, in three buildings.  My mailbox was in a different building than two of my classes, and all of them were in different places than my regular office.  I usually had two of my envelopes with me (two classes were on Tuesday and two were on Thursday).  Students also had the option of submitting homeworks online, as much as I hate grading those.

What I hadn’t anticipated was running into students who would randomly hand me homeworks between classes, leave them at the department with the admin staff, or all sorts of other unexpected things.  And, as it happens, I ended up misplacing some homework.  In fact, I went through and filed everything on my desk, and still never found it.  I believe it has ended up in the same place that unmatched socks end up…except that paper always ends up falling back out and will likely be found in the spring of 2013 or some similarly odd time.

If I end up teaching this class again, I think I’m going to make it a policy that homeworks be handed in online.  Sadly, this means that I can’t use the stair distribution when grading:

(Thanks to Concurring Opinions for the image.)

I hate grading in front of a computer screen, but I have to admit that it significantly reduces the organizational demands required to keep track of all the assignments.  Lurking in the back of my mind, however, is the idea of having to teach a very large class where homeworks simply must be dealt with the old fashioned way.  (And no, I’m not talking about burning them.)

Lexile ranges December 19, 2011

Posted by mareserinitatis in education, gifted, homeschooling, older son, science fiction, societal commentary, teaching, younger son.
Tags: , , , , , ,
add a comment

The younger boy’s school sent home a bunch of information on lexile range.  I’d never heard of this before, but it’s a way to rate books so that kids are reading at an appropriate level.  On the surface, it seems like a good idea: it’s very hard, as a parent, to provide reading material for your kids that’s appropriate.  Aside from the basic issues of whether they’ll understand the language and sentence structures of a book, there are the themes and situations: are they too complex or adult-oriented for a child to read?

A lot of this, of course, depends not only on cognitive ability but emotional maturity, as well.  I remember how my older boy started reading Harry Potter very early.  Sometime in third grade, he read the fifth book.  I began to wonder about him reading the fourth and fifth books at such a young age because of the adult themes.  We were fortunate, however.  Reading books about such emotional and adult themes started giving him words to explain a lot of his thoughts and feelings with minimal emotional fallout.

After receiving these results, I dutifully trucked my troops down to the library (no complaints from said troops) where they had a program to help us find books in the appropriate range.  However, I forgot the letter with the lexile range and so had to guess where he was at.  The younger boy had already been reading Magic Tree House books, so I figured some of the Dragon Slayer Academy books might be up his alley.  We got those and some Bionicle books and headed home.  He really seemed to like the Dragon Slayer Academy books and has been reading bits at a time.  Language-wise, they seemed perfect, although their length is a bit intimidating for him.

It turned out, I had remembered the incorrect values.  The books we picked were near the top of his range.  And yet, I was confused.  If these were supposed to be too difficult, why was he having no difficulty reading them?

Mike, unbeknownst to me, had also started looking at lexile information on specific books.  He was curious where he would’ve been placed when he was in various stages of school.  After we returned from the library, he started telling me about this and that he didn’t buy the results.  He’d been comparing some of his favorite sci-fi books, and he was puzzled at the results.  I threw out some books I read as a kid and made some comparisons.  Books that I thought were very difficult showed up as supposedly easier to read than ones I’d zipped through.

We looked up the criteria for determining lexile range:

A Lexile measure does not address the content or quality of the book. Lexile measures are based on two well-established predictors of how difficult a text is to comprehend: word frequency and sentence length. Many other factors affect the relationship between a reader and a book, including its content, the age and interests of the reader, and the design of the actual book. The Lexile measure is a good starting point in your book-selection process, but you should always consider these other factors when making a decision about which book to choose.

Both Mike and I read this and shook our heads.  We both had different takes on it.  I found that one thing that made a book challenging for me was dealing with vocabulary.  It’s not clear to me whether or not this is reflected in the “word frequency” measure.  (Do they mean word frequency in the book or relative to the English language?)  Mike felt he struggled most with books that had very adult themes, something not reflected in the range.

Our take on this is that this is only a very rough guideline, and probably not a good one to use.  We both felt that interest in a book or topic was probably going to be a far better predictor of readability than using the lexile range.  I suppose that’s what they’re saying about considering other factors.

My concern in this is that some schools go a bit overboard with these things.  When the older boy was in fifth grade, he was going to public school part time.  I got a couple calls from the school librarian because he wanted to check out books that were designated for 7th-9th graders.  I felt this was silly because he’d been reading at above that level already, and probably had come across themes in his reading that were more adult than what was in those books.  I told her it alright for him to check the books out, but she seemed to be very opposed to it.  I finally gave up and told older son that he should just probably check most of his books out from the public library.

I’m hoping I don’t see something similar happen with the younger son, i.e., that he not be allowed to check books out from the library if they’re outside of his lexile range.  On the other hand, I’m glad that they seem to be promoting reading at the upper end of the scale so that kids will stretch their mental muscles a bit as well as that they make the point that within any grade level, you’ll have a wide variety of reading levels.  In other words, it seems like they’re trying to get rid of the fantasy that kids all read at the same level and thus require the same reading level.  Therefore, while I may disagree with assessments of individual books, I think they’re definitely taking a huge step in the right direction.

The end is nigh December 10, 2011

Posted by mareserinitatis in engineering, teaching.
Tags: ,
add a comment

I’m through the ‘grading semifinals’: that is, I have no more grading until after the “all assignments are due” date on Monday.  Unfortunately, I have a bad feeling about how this is going to go with some students.  I have several students who handed in last minute assignments.  It also appears they didn’t read the criteria for the assignment carefully and will not be getting credit for some of those assignments unless they redo them before Monday and submit them again.  Some of these assignments are the required assignments.

I had structured the class so that there were six required assignments and 9 optional assignments.  To pass the class, you had to do all required assignments.  These included things like a personal essay, filling out a curriculum sheet so that the students knew how to plan what classes to take, a presentation on a subfield of engineering, how to keep a lab notebook, and how to write a lab report.  The optional assignments involved a lot of metacognitive items like homework and test wrappers, a couple things on learning styles, a library quiz, and the dreaded Matlab assignments.

A couple weeks ago, I gave everyone a little piece of paper that showed what assignments were outstanding and what their current grade was.  Realistically, this has always been available on blackboard.  However, it was very disconcerting to see how many people were failing to turn in certain required assignments and thus were failing the course.  This also led to an onslaught of homework that needed to be graded.  What’s disappointing, however, is that a good chunk of these assignments were poorly done and didn’t fill the criteria outlined in the assignment.  I had more than one student who handed in a lab report that was three paragraphs in essay form.  No sections, no data, no cover page, etc.

I’ve never had to fail too many students in the past.  In fact, the only one I can really recall was someone who did dangerous things during lab and then showed up to a makeup lab drunk.  I guess facing the prospect of failing a large number of students (>5) is rather disconcerting.  It makes me even more glad to get this over with, although I’m going to be very disappointed every time I have to put down an F.

The magical standardized exams December 9, 2011

Posted by mareserinitatis in education, gifted, homeschooling, math, older son, science, societal commentary, teaching.
Tags: , , ,
2 comments

I’ve been reading a lot of different takes on the whole fiasco of the Florida school board member with two MS degrees who failed the state’s 10th grade standardized test.  His name is Rick Roach.

While it doesn’t seem to be a popular view, I am agreeing with Roach: the test really doesn’t have anything to do with how people will fare in the real world.  I’d dare say that grades are probably a better predictor, although they have their flaws, too.  Students who do well in school tend to be those who read teachers well and know what they want.  They don’t have to be very bright to figure out how to keep teachers happy, follow the rules, and, in general, conform.  They stay organized, hand in their work, which was hopefully done well, and keep the people around them happy.  I hate to say it, but these are the skills that tend to help people at a job, not passing a standardized exam.

In my view, people who do well in life are those who are able to conform to the expectations of those around them OR those who follow their passions and work very hard at them.  I don’t believe that tests do much more than how well one takes tests.  And, to be perfectly honest, I’m not sure all the emphasis on getting kids up to speed in science, math, and reading is doing much good and may, in fact, be doing a significant amount of harm.

The reason I say this is the experience with my older son, who is now a sophomore in high school.  So let’s start out with a shocker: he got kicked out of school recently.  He was going part-time, but he wasn’t sufficiently interested and never made it a priority to be there.  This is the same kid who became so engrossed in studying US history that he passed both CLEP exams on the subject, earning him a full year of US history credits at most colleges…in 9th grade.

We decided we better start looking at how he’s going to get his degree, so I figured that since he’s almost 16, he can start prepping to take the GED.  For those of you who are unfamiliar, this is a high school equivalency exam, but you can’t take it until you turn 16.  It tests on reading, writing, science, social studies, and math.  While he has had a decent amount of algebra, he’s never had a formal science class except for one in 6th grade.  However, he passed the practice GED with no problems, meaning that he probably won’t even need to study before he can take the exam in a couple months.  He’s very happy about that because he doesn’t want to spend his time studying for that: he wants to study to take the macroeconomics CLEP instead.  The kid who doesn’t want to be bothered to make it to school on time will work his but off to study something he’s interested in.

I have a kid who is good at passing exams.  I don’t have a kid who is a conformist and understands the need to be places on time.  (Well, I think he understands…but he’s not going to make the effort unless he really cares about it.)  Unfortunately, I think his lack of conformity is going to hurt him a lot in life, probably more than his exam-taking ability will help him.  He’ll have an easy time earning his high school equivalency, but what good will this do him if he’s not going to be able to keep a job if he decides he’s not sufficiently interested in working?

I have also come to the realization that he really doesn’t need to know much math.  In fact, I think most people don’t.  Being a scientist, I use math day in and day out.  In my work as an engineer, I don’t use nearly as much math as you’d think.  In fact, like Roach said, I know a lot of people who don’t use math all that often.  A lot of those people are engineers.  A good chunk of engineering education involves teaching processes that invalidate the need for much higher level math.  Yes, a lot of it is a cookbook for boiling things down to high school algebra.  Now, the good engineers will have a conceptual understanding of what’s underlying those steps, and the really good engineers will understand it mathematically.  But realistically, most of what they learn in college, in terms of math, won’t be used.  And I say this as someone who is frustrated because I’ve had a lot of math and realize I’m forgetting much of it because I don’t use it.

Going back to the discussion on this emphasis toward pushing more math, science, and engineering hurting students, I’d have to say that there are a lot more kids like my son than people acknowledge.  Kids are going to be successful in life when they follow their passion.  I’ve seen kids who showed no motivation in classes go and learn the information taught in those classes because they wanted to work on something that required that information.  There is so much emphasis on establishing superiority in these academic areas (when we can’t even manage competency in most cases) that we’re not allowing kids a variety of experiences they need to find their interests.

Our education system provides no real motive for learning aside vague promises of getting a good job after high school.  I’m sure most students think that their job will be a lot like high school, which is probably not all that inspiring.  There is no real motivation for them to learn, their curiosity is damped, they’re never allowed to excel unless it’s in an area where our system is currently focusing.  And even then, bright kids are bored because they’re not really allowed to excel and dig into things on a deep level: they have to stay lock-step with kids who have no interest.

The whole ruse reminds me of Fahrenheit 451, where the whole society is distracted by notions of this or that trivial thing being important.  Our society is fixated on test scores and ‘competency’ in science and math and writing.  However, we’ve failed to pay attention to how and why kids really learn, and we’re delusional to think that competence in testing is the only indicator of who will succeed in life.

Of course, colleges will have you believe this, and there’s a huge industry surrounding making you believe that and providing you with more and more tests you’ll need to pass (for a sizable fee) despite the fact that grades are still the best predictor of college performance.  There’s also the politicians who are also convinced that this is the way to fix our country’s problems…most of whom benefit from the system as it is because their kids almost always end up as winners in the education race.  It also makes them look like they’re doing something substantial for education, which is why we have the No Child Left Behind legacy.

The gist of this is that most tests are assumed to be measuring things they aren’t measuring.  The SAT is not going to tell you if you are going to be successful in life.  It can’t even tell you that you are going to do well in college.  We are imbuing these tests with magical powers: they have become our Sorting Hat.  We believe in the magic of these exams to put people in some sort of ‘succeed at life’ or ‘fail at life’ category because it’s easier than looking at the realities of how our educational system is truly dysfunctional.

The best students December 7, 2011

Posted by mareserinitatis in education, geology, math, teaching, younger son.
Tags: , , , ,
add a comment

At teacher conferences a few weeks ago, my son’s teacher mentioned that she was going to be taking a short period during the day to break kids into two groups.  One group needed some help with some of the more basic concepts in math, while the others seemed fairly advanced.

I got very excited, and I asked if I could come in and do some fun math stuff with the advanced group.  She said she’d appreciate it because then she could focus on the other kids who needed more help with things.

Yesterday was my first shot at this.  It’s only about 20 minutes of seat time once a week (along with about an hour of prep, considering I have to bring in materials).  I worked with a group of six, and it was fun.

That’s the one thing about teaching college versus elementary school kids: college kids never get excited the same way little kids do.  Of course, maybe it’s because you have to use a fundamentally different approach – more hands on – with little kids.  On the other hand, I think you lose something with maturity.  I have worked with a couple different cub scout groups, and they often have requirements to learn some geology for various badges.  There is something amazing that happens when you put a group of 6-10 year old boys in front of rocks and other things they can touch.  They’re fascinated with everything and seem to hang on your every word (when they’re paying attention).  When you do the same to college kids, they just kind of shrug and proceed forth, maybe discussing the rocks with neighbors.

For these kids, I’m using a Mathworks book on how to be a zoo vet, and I decided to let each kid have their own animal as we work through the problems.  Yesterday, we talked about building crates because we’re shipping our animals from one zoo to another.  The kids were SO excited that they got their own animal.  I tried to bring a variety: there were poison arrow frogs, king cobras, and piranhas for the boys and pandas and koalas and dolphins for the girls.  I was pretty close: the two girls chose dolphins and koalas, and the boys mostly went for the dangerous animals.   (One chose a polar bear, which is on the fringe between dangerous and cute and cuddly, IMO.)

Either way, they were really getting into building their crates.  They were  talking about the differences in sizes between all the animals, and it’s amazing all the movement and excitement and gestures that go into discussions among 7-8 year olds.

After the twenty minutes was up, I was exhausted.  My comment about how college students never seem to get excited is exactly why I prefer to teach them: I can’t handle the energy level of really young kids all day long.  I have to admit that I admire elementary school teachers for doing this.  However, despite being exhausted, I was really tickled with their excitement and the fun we had.  I’m looking forward to next week.

You know it’s a bad meeting when… December 6, 2011

Posted by mareserinitatis in education, teaching, work.
Tags: , , ,
add a comment

I don’t know if it’s the sign of a teacher who enjoys her job or if it’s a sign the meeting is really boring.

I’ve not been able to make a regular meeting at work because it was at the same time as one of my classes this semester.  Last week was the last meeting of that section, so I made it to the work-related meeting for the first time since August.  As it turns out, twenty minutes into it, I wished I was in class instead.

Now I have another reason to miss teaching this spring.

It went boom November 27, 2011

Posted by mareserinitatis in education, physics, science, teaching.
Tags: , , , ,
1 comment so far

A few years ago, I was working on as part of an NSF educational program.  The idea was to pair students (undergrad and grad) with local science and math teachers to help them do whatever they needed.  I was paired with a physics teacher who asked me to build a Ruben’s tube.  (I suppose I should put the instructions here some day…they’re still on my old blog.)

If you’re not sure what I’m talking about, here’s a video of the demonstration.  I’m holding the speaker at the end of the metal tube that’s covered with saran wrap.  The noise from the speaker is vibrating the saran wrap and hence the gas inside the tube.  At the right frequencies, you get standing waves, which is visible in the flames coming from the top of the tube:

Anyway, as a safety measure, we started by throwing some dry ice in the tube.  This was supposed to evacuate out any oxygen in case the flakey methane jets in the high school lab went out.  (Carbon dioxide is heavier than oxygen, so it’ll stay in the tube and force the oxygen out.)  If the jets did go out with oxygen still in the tube, then I’d be standing at the open end of a pipe bomb because the flame would’ve backed into the pipe and ignited all the methane inside.  Without the oxygen, there would be no explosion…just a slow burn off of the remaining methane.

In order to test this, I got a bunch of dry ice from the chemistry supply at NDSU.  I filled a couple of soup thermoses and brought it to the high school.  We tested things out, and our first test went fairly well.

As I was leaving the school, I was walking toward a teacher in the hallway.  I was about to smile at him when I heard a huge “BANG!”  I stood there, stunned, and a second later realized I had a really bad pain in my side.  The teacher, who a second ago was smiling at me, came running at me.  And he looked very angry.  He started yelling at me, and I couldn’t understand what was going on.

I looked down while he’s angrily asking me questions, only to realize that he was angry because I was the source of the huge noise I’d just heard.  I saw one of the thermoses, which had formerly been under my arm, had blown off the bottom and was laying in pieces on the floor.  The pain I’d felt had been the thermos ejecting itself from my grasp.

Despite all my efforts to avoid being blown up by a pipe bomb, I’d managed to make a small explosive device anyway.  I’d forgotten the ideal gas law…and over the past couple hours, it appeared that pretty much all of the dry ice had sublimated.  A thermos full of solid dry ice turning to gas was going to create an extremely large amount of pressure.

I finally explained to the teacher that I wasn’t a student trying to blow up the school, despite the fact that I apparently looked young enough to be a student (at 28?!) and was standing in front of the administrative offices when the incident occurred.  I explained who I was and what was going on…and once he realized I was half in a state of shock, he started helping me to clean up my thermos pieces.

And people wonder why I don’t want to be an experimentalist.

Undergrad physics inaccessible to women November 23, 2011

Posted by mareserinitatis in education, feminism, physics, teaching.
Tags: , , , ,
10 comments

I was very intrigued when this month’s Physics Today showed up in the mail.  While scanning the table of contents, I noticed an article called, “Problems with problem sets.”  The summary went on to say that the problem with undergrad physics courses is that they often use problems which require specific background knowledge.  Men are more likely to be acquainted with this knowledge than women.

The gist of the is that many of the problems in physics texts assume knowledge of various areas like construction, meaning that more men than women will be acquainted with the problem set up.  Many times, these problems will make reference to various tools or constructions without giving an explanation or picture to describe what’s going on.  They assume the students will understand what is being asked without further explanation.

I guess I hadn’t run into this a whole lot as an undergrad, but I think I may be a special case.  As a kid, I worked with woodworking tools because my dad was a carpenter.  In fact, I regularly had to help out in the shop, so I got a lot of hands-on experience in building and working with tools.

On the other hand, I think that when I went back to school, I wasn’t afraid to ask questions.  I’ve observed that there are a large number of students who don’t like to ask questions, especially among the youngest students.

It’s a very interesting premise.  Obviously it didn’t deter me, but I can see how this would be very intimidating for young women.  It would definitely make many of them feel like they didn’t have a good enough background to do the work.  I’m glad that someone is paying attention to issues like these, and I hope professors will pay a lot more attention to the problem sets they give in the future.

Follow

Get every new post delivered to your Inbox.

Join 914 other followers