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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Should honors classes be open to all?
At least on political grounds, it’s tempting to argue that honors and AP classes ought to be open to all who wish to enroll in them. It’s also tempting to argue it on educational grounds. We believe in giving everyone… Read More ›
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What is trigonometry?
“Trigonometry is algebra tainted by geometry,” according to one of my students.
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Logarithms and the Hippocratic Oath
I just finished reading The Oath, a novel by John Lescroart. A hospital is suffering from deep financial woes. One character says: Every day the hospital’s troubles are increasing logarithmically! I guess there isn’t much that they have to worry… Read More ›
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Charging what the market will bear
The folks at TechFusion must be good guys, right? After all, their company is one of WBUR’s underwriters. And they advertise “No Job Too Large or Too Small.” Of course I was suspicious in the first place when I heard… Read More ›
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Globe speaks out for Dorchester!
What does the Globe normally say about Dorchester? Well, the three most frequently reported topics are crime, crime, and crime. So it was welcome news to see a large article right on the first page of Metro/Region in yesterday’s Globe… Read More ›
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The power of visual representations
In middle- and high-school math classes, we spend a lot of time helping students learn different representations of mathematical relations: words, equations, graphs, tables, etc. One of the big ideas is that a particular representation may be more powerful than… Read More ›
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Anti-Semitism?
Conversation overheard in the Math/Science Office the other day: Ms. X [to Student Y]: I need a babysitter for my kids. Do you babysit? Student Y: Yes, I do. Ms. X: You aren’t Jewish, are you? Student Y: No. Not… Read More ›
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Hacking, not cracking
It says here that “the word the word ‘hack’ may be losing its negative connotations.” Duxbury High School engineering teacher Chris Connors is sponsoring a contest among his students to see who can come up with the best hack. Sounds… Read More ›
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How to protect your kids: a modest proposal from Scituate
Catching up on Monday’s Boston Globe: Red-light runners in Boston and Cambridge could soon be handing over some green if the Legislature lets the cities set up cameras at intersections to nab violators… [Name Omitted] of Scituate, who drives often… Read More ›
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Conspiracy theory: more "evidence"
This is a follow-up to my post of 10/5. In a letter to the editor of the Boston Globe today, one Jeff Loja of Halifax says: It seems abundantly clear that the purpose of ABC’s new show “Commander in Chief”..is… Read More ›
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Principal search
We’re looking for a new principal, as our previous one moved to Georgia over the summer to become an Assistant Superintendent in the Cobb County district. This year we have an interim principal at Weston, as we search for a… Read More ›
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Conspiracy theories
From the right: THE HILLARY CLINTON ’08 CAMPAIGN AIRED ITS FIRST, HOUR-LONG COMMERCIAL last night. [caps in original] Unfortunately, it came masked as a primetime network TV series… Last night, “Commander in Chief” portrayed conservatives as ruthless, power-hungry, militaristic, Bible-thumping, sexist… Read More ›
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Are men malingerers?
According to the Boston Globe: Men are twice as likely as women to play hooky by calling in sick, according to a recent poll. The 11th annual Attitudes in the American Workplace poll, reported by the Marlin Co., a workplace… Read More ›
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Robert Noyce and Bringing Down the House
Usually I’m in the middle of reading two books at once — typically a novel and a non-fiction work. But for some reason I’m currently reading a biography that’s definitely non-fiction and a former best-seller that purports to be non-fiction…. Read More ›
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Merit pay
Our distinguished governor, Mitt Romney, advocates merit pay for teachers, based on the standardized test scores of their students. Vivian Troen and Katherine C. Boles wrote an op-ed piece about this idea in the Boston Globe on 9/28. I was… Read More ›
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Back-to-school night
Yesterday evening we held our annual Back-to-School Night at Weston High School. You know the drill: the parents come to school, arrive late at their first-period class because they can’t find a parking space, go to one ten-minute class after… Read More ›
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Partial Credit
One of my students — let’s call her Artemis — muses in her blog: Giving partial credit may be helpful to a student’s grade in school but in real life, people don’t want to know how you did something, they… Read More ›
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Habits of highly effective teachers?
Key Curriculum Press publishes our new Algebra II textbook as well as two software products that have had a significant impact on many high-school math teachers, Geometer’s Sketchpad and Fathom. Their recent catalog includes a moderately long article entitled “The… Read More ›
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Bullet voting, pro and con
On Tuesday, Boston voters will go to the polls in the “preliminary election” for City Council. Something like a primary, the preliminary election narrows each race down to a number of candidates equal to twice the number who will be… Read More ›
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Standards-based Education, Part IV
Standards-based education encourages us to give untimed tests. This idea makes a lot of sense: if I want to tell whether a student can solve a quadratic equation, I shouldn’t be testing how fast s/he can solve the equation. The… Read More ›
Learning Strategies 