sbagleyteaches: Page 1 of 2
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Midpoint vs trapezoid estimates
Today I have been playing around trying to justify an observation that we made in my Calculus II class, which is as follows:
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Assumptions about grading
I was in a panel today at The Grading Conference (twitter @Grading4Growth) whose title was “Rethinking Assumptions.” We went mostly in the direction of assumptions about ungrading, so I wanted to write down a few other thoughts about assumptions about grading writ large.
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Remote proctoring is an Orwellian nightmare machine
And we cannot acquiesce to it.
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Mathematical autobiography assignment
Various people have asked me recently about my mathematical autobiography assignment, about which I have previously tweeted, so I decided to put it on my blog here for easier reference.
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A really dirty trick
It's probably been said, and if not then I'm saying it right here, that differential equations is the systematic study of dirty tricks. Here's a good one I encountered in the 1924 monograph on the calculus of variations that I'm rendering into an online PreTeXt book.
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My announcement to my classes
In case it's helpful for other people, here's the announcement I just sent out to my classes through Canvas. Your course setup is probably different from mine, but I think it may be helpful to see examples of how other professors are communicating with students. Some of my classes have slightly different structures, so I've tried to indicate the ways I changed the announcement between those courses.
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Three pretty good reasons why the cross product of parallel vectors is zero
Pretty much, if the cross product is to have any of the properties we'd like it to have, then we're forced to conclude that the cross product of parallel vectors must be zero.
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The four pillars of IBL and my teaching philosophy
I'm up for contract review this year, and I'm also eligible for promotion, so I just completed my teaching narrative. I got real self-indulgent on this thing and ended up writing almost 3500 words (yikes; sorry, committee). There's one section in particular that I thought would be useful to share.
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Yesterday was a good day
It's Friday afternoon, I'm pretty much caught up with grading, nothing is pressing, so it seems like a good time for a moderately self-indulgent blog post. I had a really good day in the classroom yesterday – no, you know what, scratch that, I felt like I kicked ass – and I think it might be useful for me to recap what happened and reflect on why I felt so good about stuff.
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Make your own whiteboards for collaboration
Okay, so, you may have seen pictures or videos of people doing cool stuff with medium-size whiteboards in their classes, and by medium-size I mean not the big one that's on the wall, nor the tiny paper-size ones, but the ones that are a couple of feet square, big enough for a couple of people to simultaneously write on, but small enough to fit on a table or at least balance on a couple of desks. Here's some of my students doing concept maps on these whiteboards at the end of Calculus II: