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reading tiger

OK, back to your regularly scheduled

1. Made a lentil salad with roasted root vegetables for a potluck yesterday evening without really thinking about how really hippie it was as a dish. It was vegan. (I had to think about that.) It had no onions. It had *lentils*, for Gods' sake. At least they were fancy gourmet lentils, I guess. It was also pretty popular; I came home with no leftovers.

2. I am basically finished with my school tours after the end of this week. I have two last school visits scheduled, one of which is my neighborhood school. I also have a couple charter schools to check out in January. It's nice to see the light at the end of this particular tunnel. I think I am going to try to turn in my paperwork on Friday.

3. I just learned some weird stuff about handedness and twins. If I am understanding it all correctly, there's a pretty high rate of twin pairs where one is right-handed and one is left-handed, and this holds true at more or less the same rate whether the twins are identical or fraternal. I think I have mentioned before that Simone is left-handed?

4. Kids went ice-skating today with their cousin while we took the opportunity to run errands. There is video.

Comments

Since handedness is only partly genetic, it would make sense that the presence of another chld in the womb would influence the development of handedness.

The thing I find most interesting about left-handed people is they aren't the inverse of right-handed people. They organize their handedness differently and in more varied ways than right-handed people. My daughter, for example, writes and draws with her left hand, and maybe still eats with it, but cuts and knits and sews right-handed.
The discussions of how researchers define "handedness" is really interesting!
Well, one book I read said you're not left-handed unless you do fie of the things on a particular list with your left hand.

I thought that was a very uninteresting way of categorizing people, especially since many of them were quite trivial -- I believe I did three of them with my left hand, and I am not left-handed (though I am not strongly right-handed in the scheme of things, naturally, and have both a left-handed father and daughter). And Emma did less than five. Or was it four and a half, and she did one with either hand? I don't remember. It was an annoying book anyway. It suggested that left-handedness was a brain injury and a generally deficiency that would necessarily lead to a shorter and less satisfying life.

For a long time, if I had to write with a large-diameter implement like chalk or a whiteboard marker, I would pick it up with my left hand and then have to think about why it wasn't going well. I figured this had something to do with the left-handed father and daughter. And not a coincidental brain injury repeating itself across generations, either.
The brain injury theory annoys me, too. It's one of those theories that is clearly showing its normative assumptions.

I was particularly interested in the definitions that were asymmetrical -- that is, they were stricter for right-handers than left-handers. And then there was the one from 1939 that mentioned gender differences in sewing and throwing balls (it said that sewing hand was predictive for girls but not boys, and vice versa for balls).
That is really interesting, and probably true at the time: since those are traditionally intensively taught to their respective genders, doing it with the less-usual hand would be more unusual for the expected gender, and therefore more strongly indicative of a strong handedness variation.

It wasn't Emma's situation, though. Once she showed she was left-handed at all, I did everything I could to allow her to choose which had to use (not to channel her into using her left hand exclusively, because I already knew it didn't work that way). I hand universal scissors for her and when I showed her how to sew by hand I made an effort to show her both hands. So I am comfortable that she worked everything out herself. The sewing machine does impose handedness, but knitting needles and crochet hooks and hand sewing needles don't.

I don't recall which hand she uses for hammers, drills, saws, screwdrivers, etc. Or glue tubes, for that matter. She played her bagpipe and flute standard, but there's no real slack there. My father didn't string his banjo upside down like Elizabeth Cotten did her guitar.

this is fun to think about.