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.

• Shadow of the Lions

  By ljd42 on February 25, 2018

  

  Thirteen years ago [has it really been that long?] I wrote an essay called “Literature & math: imaginary gardens with real toads.” The phrase following the colon quotes from Marianne Moore’s characterization of poetry, but I was connecting it with math in… Read More ›

• Spirals & fractals at the MoS

  By ljd42 on February 24, 2018

  

  Another museum visit on my staycation was to the Museum of Science: the special exhibit Numbers in Nature, continuing through April 25. My capsule summary is that it is generally high in quality but low in quantity. Yes, I agree that… Read More ›

• DreamLand Wax Museum

  By ljd42 on February 23, 2018

  

  Sometimes a Groupon just leaps out at you and demands to be purchased. It’s a bah-gain, after all, so how could you resist? That’s how Barbara and I ended up visiting Boston’s DreamLand Wax Museum as part of our staycation this week…. Read More ›

• Why teach programming/coding? For the nth time…

  By ljd42 on October 27, 2017

  This seems to be an endless debate: why should we teach programming? (Or coding, if that’s what you prefer to call it.) We have to split the question into at least three versions, and probably more: Why should we offer… Read More ›

• Still Life

  By ljd42 on October 23, 2017

  What a beautiful collection of locally grown early-Autumn produce provided by one of my colleagues (looks like a still life, doesn’t it?)

• “Why are more American teenagers than ever suffering from anxiety?”

  By ljd42 on October 22, 2017

  The cover article in the New York Times Magazine from 10/15 (yes, I’m just now catching up) asks, “Why are more American teenagers than ever suffering from severe anxiety?” The author, Benoit Denizen-Lewis, continues with this observation: “Parents, therapists and schools are… Read More ›

• Y is for Yesterday

  By ljd42 on October 21, 2017

  So we’re down to Y. Just one more to go. As I’ve previously reviewed some of the other novels in Sue Grafton’s alphabet series, I should write something about this one as well. I listened to the audiobook this time,… Read More ›

• Introverts and group work

  By ljd42 on October 19, 2017

  I hear that you hate group work (and other collaborative work)? Why? Perhaps it’s because you’re an introvert. Or perhaps not. There are three other reasons why some of my students hate group work; I identify with all three reasons… Read More ›

• Should you take the math course you want to take?

  By ljd42 on October 15, 2017

  A brief anecdote posted by The Math Curmudgeon and a comment from a reader a couple of days ago raise two different but interlocking issues: how do you take school administrators seriously when they directly contradict themselves, and should students… Read More ›

• Happy Hangul Day!

  By ljd42 on October 14, 2017

  Happy Hangul Day — five days late. Sorry that I missed it! “What’s Hangul Day?” you ask. You mean you didn’t follow the link in the previous paragraph???? Or perhaps you do know what Hangul is but you don’t know… Read More ›