Author Archives
In 2018 I semi-retired by retiring from Weston High School after my 21st year teaching mathematics there. This was also my 44th year as a teacher altogether. In 2023 I retired fully, adding in my 18 years at Harvard’s Crimson Summer Academy each summer. For 21 years I had taught at the Saturday Course in Milton, MA, and I used to serve on the board of the Dorchester Historical Society.
I read, cook, and spend a lot of time building my model railroad. For some reason I’m left with less free time than would be ideal, considering that I’m supposed to be retired, but somehow I also manage to devote time to my wife, Barbara, and to our varying number of cats (once up to six, but now sadly down to one).
Larry Davidson
ljd@larrydavidson.com
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Happy Pi Day!
Pi Day at Weston was uneventful, except that one of my students brought in a virtual pie. Actually it was a chocolate cake, but at least it was round. And she had intended to write some of the digits of… Read More ›
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JP Seafood
Last night Barbara and I ate at JP Seafood, one of our favorite restaurants for times when she works late in Jamaica Plain. (You’ll note that I’ve included the Dorchester label for this post, even though Jamaica Plain is not… Read More ›
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Preparing for Pi Day
To get ready for Pi Day, which of course comes the day after tomorrow, you should get yourself a Pi Plate, watch the music video of the first half of Mathematical Pi, and listen to the audio version of the… Read More ›
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As Dog is My Witness
I seem to be inadvertently continuing my Asperger’s theme here. As Dog is My Witness, by Jeffrey Cohen, is a mystery that features a couple of boys with Asperger’s; one is the innocent suspect, the other the informal detective. You… Read More ›
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The Second Mouse
The Second Mouse is a wonderful addition to Archer Mayor’s series of Vermont mysteries, which are always a pleasure to read because Mayor is so skilled at drawing verbal pictures of both the characters and the locales. As a reader,… Read More ›
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Maple
Yesterday afternoon we had a half-day workshop on Maple, a computer algebra system. At least that’s how we think of it, but here’s the description on their website: Maple is the leading all purpose mathematics software tool. Maple provides an… Read More ›
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Teaching boys and girls separately — and differently?
There’s a fascinating pair of intertwined articles this week, one in the New York Times Magazine and one in Language Log. The Times article is the cover piece for the issue: “Teaching Boys and Girls Separately,” by Elizabeth Weil; the… Read More ›
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An Obama/Seeger serendipity
Wow! I don’t often call a PBS show inspiring, but last night I watched the truly inspiring American Masters episode, Pete Seeger: The Power of Song, which had aired on my birthday and TiVo had kindly saved for me. I… Read More ›
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Fractals are fractious
(Thanks to Barbara for the title of this post.) Let me begin by setting the stage. On Friday I wrote about this year’s Fractal Fair. Groups of students (generally three in each group, occasionally two; generally juniors, but there were… Read More ›
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Listen to the kids? Or listen to the adults?
In Universal Hub this morning, Adam Gaffin quotes Cara Lisa Powers on the subject of the Boston Globe’s coverage of a protest at the John D. O’Bryant High School of Mathematics and Science. The Globe ignored the kids. In this… Read More ›
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"Boys and girls,…" What's wrong with that?
One of my colleagues objects when a teacher addresses a group of students as “Boys and girls,…” No, it’s not that she would prefer it if we said “Girls and boys,…”; that’s not the issue, though of course one should… Read More ›
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The Sixth Annual Fractal Fair
You’re familiar with the fact that high-school students often display their creativity in the fields of art, music, and theatre, and everyone has heard of science fairs, but similar opportunities in mathematics are all too rare. Today we held the… Read More ›
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My 10 favorite books
That’s 10, not ten — because there are twelve, which is still 10. Confused? Just pick the right base, of course. So I guess they’re still my 10 favorite books. Anyway, if you look at my profile (the link is… Read More ›
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Thinking again about Obama/Bloomberg
A month ago I wondered why nobody was talking about the possibility that Barack Obama would pick Michael Bloomberg as his running mate. It wasn’t that I was seriously supporting such a ticket at the time; it just seemed to… Read More ›
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Nursery Crimes
Nursery Crimes, by Ayelet Waldman, is a satirical mystery novel that’s fun to read but is a bit too much like cotton candy. Here is my favorite passage: “This is terrible. You don’t seem to understand. If Ruby doesn’t go… Read More ›
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Curriculum B
Every curriculum can be viewed at several different levels of granularity. Let’s look at what’s important when we’re teaching math. At one level the curriculum is obvious: Algebra I, Geometry, Algebra II, etc. But of course that’s much too broad,… Read More ›
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If you can read this, you can read at a high-school level
According to the badge that I’ve pasted into the right sidebar, this blog requires a high-school reading level. I was glad to see that it passed that test, even though only a small part of my audience actually consists of… Read More ›
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Applying Yourself
I’ve been catching up on some back reading over vacation, so I just now got to my copy of the January issue of Harvard Magazine. After reading “Applying Yourself,” by college senior Liz Godwin, I am convinced that this essay… Read More ›
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Sex vs. math
The anonymous Minnesota math teacher who blogs under the name “3σ→Left” sarcastically calls it “surprising news,” but how will this news item affect teens who are considering majoring in math? Now we know why so many of those teenagers who… Read More ›
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Slay Ride
In my post of January 9, I promised to read Chris Grabenstein’s Slay Ride, since I had been disappointed by its sequel, Hell for the Holidays, but liked the author’s other series, including Tilt-A-Whirl and Mad Mouse. I concluded my… Read More ›
Learning Strategies 