• 103 Posts
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Joined 2 years ago
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Cake day: September 13th, 2023

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  • The physics of knitting is so complicated that SciShow fucked it up and had a bunch of people mad at them.

    Textiles are complicated crazy wonderful things. The drape of a fabric is going to be related to the materials it’s made of (cotton, linen, wool, acrylics and polyesters, blends of all of the above and more to various percentages…) as well as just the process of making.

    Woven is very sturdy and doesn’t stretch. You can’t unwind the whole thing by getting it caught on something. Your jeans and slacks are probably made of woven material, because otherwise you’d accidentally lose your pants to the bump of a nail in a chair or something.

    Knit stretches, but accidentally bump into a door hinge and you’ve unraveled a good chunk of your sweater. It’s good at moving though. Most things are done on knitting machines in “stockinette” stitches - look for little ‘v’ shapes.

    Gotta keep in mind that the upkeep of clothing was something people use to be spend several hours a week on - beyond just laundry. Weaving takes forever and it’s not particularly exciting. Just imagine how many outfits you’d have in 1600 BC or 1600 AD versus now.

    It’s just really crazy that we are all surrounded by billions of tiny fibers that were twisted into single strands that then become fabrics that then become clothes. Each stage presents uniquely complex and beautiful physics problems.






  • I disagree.

    I tutored a college student who had dysgraphia. They originally had a calculator accommodation, but this was removed at the request of the instructor.

    The student was in no way incapable of learning the material in the class - a remedial math course mostly on basic statistics and presenting data. But they were incapable of remembering most of the multiplication table.

    There’s no reason to force a person to do long division by hand. The student was perfectly capable of understanding the process of calculating an average, but actually doing the problem meant that they were counting out by threes on their hand to do 3x7.

    I’ve worked with dyslexic students on writing assignments - they are just as capable of intelligently responding to a writing prompt if you ask them verbally. Why should they be punished because they can’t spell (especially when we had like a decade of NOT TEACHING PHONICS)?

    I draw a hard line at generative AI, but as long as the thoughts are theirs, I’ve never been concerned too much with students using tools to help them.


  • Sure, you can do that once. Then you are out the job. Talking about politics will get you in more trouble than raping a kid.

    I went into teaching because I care about making the world a better place. It cost me my marriage, it has sunk me into some of the deepest pits of despair that my mental health could take, it has meant physical and verbal abuse.

    Buying pencils for kids is the kind of thing that you don’t mind too much, because at least it is a problem you can fix.

    Once, I had a student ask me for a pencil. (He’d ask me everyday - usually in response to me asking why he wasn’t doing his work.) He looked me in the eye, snapped it in half, and asked for another.

    I gave it to him. Who cares. I couldn’t fix the sinks which didn’t work and stunk because kids shoved shit into them, but I could fix the fucking pencil.

    It’s a terrible job where you are expected to save the world and hated for everything you do. But, as a dog returns to his vomit… It’s part of my soul.



  • Canvas has a very neat “annotation” tool, where the teacher can upload a document and students can write on it and submit.

    I also see a lot of canvas assignments where the answer is in an auto graded quiz, but the teacher has the students take a picture and upload to show their scratch work. This can be added as a “question” to the assignment.

    There are good ways to use the tools for sure - I did really like that the auto graded quizzes on canvas could use randomized numbers. Eg, when I did speed/distance/time, I could write a word problem where it would randomize the quantities so each student got a unique quiz and couldn’t cheat.

    Tools like PHeT/CK12/other simulation programs are also a godsend. Even working with college chemistry, being able to show visual representations of acid/base dissociation or how to balance an equation makes things so much easier.

    The platforms are great - the work flow problems are more consequent to the way the school system is set up, especially in the Title 1 hell schools that are left to fall through the cracks.




  • The most I dealt with was around 36. I had around 28 chairs.

    However, the feeder middle school had class sizes of 60+. There were literal riots, with multiple teachers injured, that the district covered up.

    Stocks would absolutely not be allowed. I had a student that spent fifteen minutes screaming and cussing me out, straight to my face in front of a principle. When she said “I wish I wasn’t in your class” and I said “me too” - I got in trouble. (She was mad because I wrote her up for literally just walking into my classroom to sell snacks. She didn’t attend classes, she just did whatever she wanted.)