Author Archives
I am entering my 21st year as a math teacher at Weston High School, the sole public high school in Weston, MA. It’s also my 44th year as a teacher altogether. In addition to my day job, I taught for 20 years at the Saturday Course in Milton, MA. I also teach at Harvard’s Crimson Summer Academy each summer; 2017 was our 14th consecutive summer.
Sometimes I work on educational software. I also read, cook, and continue building my model railroad whenever I can. For some reason I'm left with less so-called free time than would be ideal. Nevertheless, I manage to devote time to my wife, Barbara, and to our excessive number of cats as well.
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Why “Names of polygons”?
Whenever I go to the WordPress Stats page for this blog, I see that my most popular post (most popular by far) is “Names of Polygons,” which I posted on December 10, 2010! It had 361 views last month, nearly… Read More ›
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Nine ways (or six, she said originally) to do linguistics in high school
Unfortunately, I’ve never heard of a high school offering linguistics courses or indeed knowing much of anything about linguistics. So writes distinguished linguist Gretchen McCulloch. After all, everyone knows that linguistics is purely an undergraduate and graduate subject in colleges… Read More ›
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York. Book One: The Shadow Cipher
Yes, it’s a YA novel; I don’t teach middle school, so why did I read it? The Shadow Cipher (Book One of Laura Ruby’s promised trilogy, York) is clearly aimed at intelligent seventh-graders. Yes, it got great reviews — but still, why would… Read More ›
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Ancient Babylonian trigonometry? Really? Really???
It’s pretty clear what this clay tablet says, right? Obviously it’s written in… Oh, wait, maybe it isn’t so obvious. You probably don’t read Babylonian, or Akkadian, or Sumerian, or whatever language these cuneiform carvings represent. But this tablet has… Read More ›
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The first day for all
Although the first day for faculty and freshmen came last week, yesterday was the first day when all who should be here were present at Weston High School. From where I sit, it was an especially smooth opening day. As… Read More ›
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Do negative numbers exist? And why do two negatives make a positive?
A brief interchange on Facebook yesterday and today with three of my former students prompted this discussion of the two questions stated in the title of this post. It all started with this implausible claim from a reliable math website:… Read More ›
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New York 2140
Most good science fiction takes a single premise (which may or may not be believable) and spins out the consequences of that premise. To be convincing, there should just be that one premise, since most readers are willing to suspend disbelief… Read More ›
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School of Rock
I really didn’t think I would enjoy this movie. “Not my style,” I said to myself. But I was wrong. Although it’s true that it is not my style, I still enjoyed it a lot. In case it’s not… Read More ›
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A portal for parents
There’s an excellent article in last week’s New York Times on the downside of checking kids’ grades constantly through an electronic portal for parents. Here are a couple of excerpts: The reality, at least in high-pressure school districts, is that some parents… Read More ›
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I Know a Secret
Don’t read Tess Gerritsen’s newest Rizzoli and Isles novel, I Know a Secret, if you (like someone I know) are prone to having nightmares based on books and movies. The rest of us will find it fascinating and suspenseful. To a large… Read More ›
