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

• Being visited by scary reviewers

  By ljd42 on March 9, 2007

  No, they weren’t actually scary. That’s merely what one of my students thought. “Weren’t you scared?” she asked. Each department in the Weston Public Schools gets reviewed every ten years or so. This year it was the Math Department’s turn…. Read More ›

• Art Day

  By ljd42 on March 8, 2007

  The first Wednesday of (almost) every month is professional development day in the Weston Public Schools. Students have a half-day of classes, after which they can go home and the faculty have workshops and the like. Usually these days have… Read More ›

• Singulars and plurals

  By ljd42 on March 6, 2007

  I am catching up on reading old posts in Tenser, said the Tensor, which labels itself as “the blog of a graduate student in linguistics. It’s about language, science fiction, computers and technology, comics, anime, and other geekery.” How could… Read More ›

• Math education: an inconvenient truth

  By ljd42 on March 5, 2007

  It’s hard to know where to begin. What’s wrong with the video “Math Education: An Inconvenient Truth, ” which is primarily an attack on TERC’s Investigations in Number, Data, and Space and other standards-based curricula? Well, let me count the… Read More ›

• Blood from a Stone

  By ljd42 on March 4, 2007

  I recommend Blood from a Stone, by Donna Leon. If you look at the photo on the opening screen of her website, you’ll immediately see what I liked most about this novel: it makes the reader feel that s/he’s in… Read More ›

• Ethnomathematics

  By ljd42 on March 3, 2007

  We have recently been discussing ethnomathematics in the context of Weston’s global awareness emphasis. Here are some thoughts on this subject: It’s worth studying number systems other than our own familiar Hindu-Arabic one. Years ago I developed quite a number… Read More ›

• The Outlier Effect

  By ljd42 on March 2, 2007

  Just came back from seeing The Outlier Effect, a one-act play written and performed by Weston High School’s Theater Company. That’s right: not only performed by them, but also written by them. Collaboration by a mere two authors is difficult… Read More ›

• What should college freshmen know?

  By ljd42 on February 28, 2007

  Rudbeckia Hirta reports that she has a “freakishly competent” college calculus class: They come to class; most of them do the assigned work; they earn high scores on the assessments. Whether that situation should be so surprising is another story,… Read More ›

• Why does 17/1000 of an inch matter?

  By ljd42 on February 27, 2007

  In HO scale model railroading, tracks always used to have rails that are 0.100 inches high, even though that’s not strictly to scale. Many model railroaders — mostly those who interpret the word “model” strictly — favor the newer versions,… Read More ›

• NJ Seeds

  By ljd42 on February 26, 2007

  I’ve written posts about the Crimson Summer Academy on two earlier occasions: August 20, 2006, and May 23, 2005. Now I’m designing a math curriculum for a program with a somewhat similar basis in New Jersey: the College Prep Program… Read More ›

• Getting Things Done Revisited

  By ljd42 on February 25, 2007

  Slightly over a year ago, I wrote a post about Getting Things Done (GTD) — how it seemed to me to be “the right thing” and yet I couldn’t make myself actually implement it. In the intervening 13 months I… Read More ›

• Prince of Thieves

  By ljd42 on February 24, 2007

  I just finished listening to the audiobook version of Prince of Thieves, a crime thriller written by Chuck Hogan and read by Dorchester’s own Donnie Wahlberg. The action takes place in Charlestown, and the sense of place is definitely the… Read More ›

• Urban schools success stories? Or not?

  By ljd42 on February 23, 2007

  So here’s the question. Why does everyone like to hear success stories from inner-city, overwhelming minority public schools? I suppose Democrats like to hear these stories because it confirms their beliefs that non-whites without money can be academically successful, and… Read More ›

• Geoffrey Chaucer Hath a Blog

  By ljd42 on February 22, 2007

  How could I resist reading a blog entitled “Geoffrey Chaucer Hath a Blog”? Yes, as you guessed, it turns out to be a blog that’s entirely written in Middle English! Anyway, take a look at it and make a serious… Read More ›

• The Coffee Trader

  By ljd42 on February 21, 2007

  I recently finished reading a fascinating historical novel by David Liss, The Coffee Trader. Now maybe you’re not interested in the formation of the coffee trade in Europe in the 17th Century — though I can’t imagine why not —… Read More ›

• Big ideas

  By ljd42 on February 20, 2007

  LCSI’s new blog, Thinkering, links to Seymour Papert’s homepage, which in turn links to a four-and-a-half-year-old press release from MIT, which reminded me of our commitment to big ideas in the Math Department of the Weston Public Schools. Such are… Read More ›

• The Mexican Consulate puzzle (and cell phone cameras)

  By ljd42 on February 19, 2007

  Ate lunch today at the Blue Fin, a favorite inexpensive Japanese restaurant in Little Tokyo, a.k.a. the Porter Exchange Building in Cambridge. A new sign lists the types of identification that are acceptable for ordering alcoholic beverages — mostly the… Read More ›

• Dorchester: 1630-1870

  By ljd42 on February 18, 2007

  It often happens that an event at the Dorchester Historical Society (DHS) is an informative experience. And it often happens that a DHS event is an enjoyable experience. Today’s presentation by Earl Taylor and John Goff was both. The title… Read More ›

• WoW and Second Life: follow-up

  By ljd42 on February 17, 2007

  This is a follow-up to my earlier post on Second Life (SL) vs. World of Warcraft (WoW). One of my students, Dan Spector, replies to that post by writing the following remarks in an email message to me (quoted by… Read More ›

• Modified open campus — a solution to tardiness, or would it make it worse?

  By ljd42 on February 15, 2007

  We have a problem at Weston High School. Actually, we have more than one — but there’s one problem I want to write about here: every day we have an extraordinary number of students coming late to school and/or late… Read More ›