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 ›
Teaching & Learning
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 ›
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 ›
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 ›
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 ›
Mozart and the Whale: The movie
Mozart and the Whale: An Asperger’s Love Story? I was initially skeptical — definitely intrigued, but still skeptical. The premise sounded too sentimental. It was going to be a chick flick, I figured. It was going to be what my… Read More ›
Girls can't do math.
Got your attention, didn’t I? I figured that such an outrageous claim would have that effect, even though there are people who actually believe it, as portrayed satirically in yesterday’s XKCD cartoon: The clueless guy on the left is a… Read More ›
A calculator that promotes understanding
I try not to plug specific products. I especially try not to plug products that I haven’t even seen yet. But… the new calculator from Texax Instruments is clearly not just another calculator. From its specs, the TI-Nspire looks like… Read More ›
Is Prisoner's Dilemma still teachable?
For over three decades I’ve been teaching the Prisoner’s Dilemma. This is a classic problem — perhaps the classic problem — of game theory, the misleadingly named field that lies at the intersection of mathematics and economics (with a dash… Read More ›
When am I ever going to use this stuff?
I know, I’ve written about this topic before, but it bears further consideration. Too often I hear the question, “When will I ever use this stuff?” This is a common question in Weston, and surely elsewhere as well. Sometimes the… Read More ›
Courtesy: a double standard?
One of my colleagues has asked us not to cut in line in the cafeteria, correctly pointing out that “adults set the tone and serve as personal examples of respectful behavior.” I agree with the text, but I have some… Read More ›
The Witch of Agnesi
What math teacher could resist a mystery titled The Witch of Agnesi. Of course if you’re neither a math teacher nor a mathematician, you’re probably scratching your head right now, wondering, “What is he talking about?” Well, the Witch of… Read More ›
Defaults
“Default, dear Brutus, is not in our stars, but in ourselves…” No, that doesn’t seem quite right. I don’t think Shakespeare had Cassius talking about defaults, did he? But it’s what I think of when we just assume that defaults… Read More ›
Collaborating with colleagues
We had an interesting K–12 professional development (PD) day yesterday (as our students were enjoying a four-day weekend and we teachers had to settle for three days off). The theme for the year is differentiated instruction (DI); the specific focus… Read More ›
Firing a teacher, part two
A first-year teacher was fired last week for making a bad judgment call. Depending on the version of the story you believe, he either duct-taped a student’s mouth shut or gave her some masking tape and asked her to tape… Read More ›
Mathematicians are Platonists
In this past Sunday’s New York Times Book Review, Jim Holt wrote a mildly interesting review of the new book by John Allen Paulos, Irreligion: A Mathematician Explains Why the Arguments for God Just Don’t Add Up. Since I haven’t… Read More ›
Life imitating art: Academy X & Firing a teacher, part one
Continuing my accidental theme of reviewing works of fiction about life at elite high schools, such as Prep, Restless Virgins, and Dangerous Admissions, I have just finished reading Academy X, a satirical novel by Andrew Trees. It’s not clear whether… Read More ›
No comment
A reader of both this blog and Adam Gaffin’s Universal Hub asked why I’ve turned off comments in my blog. Naturally he had to ask the question on Universal Hub. I replied as follows: I have comments turned off because… Read More ›
The fuzzy math of Huckabee's FairTax
There are many things to dislike about Mike Huckabee’s proposal for a 30% national sales tax, the so-called Fair Tax, such as the fact that it’s thoroughly regressive. (It would lower taxes slightly for the poor, lower them tremendously for… Read More ›
Can a middle-aged professional become a math teacher?
We had an interesting visit yesterday from a local accountant who is considering making a mid-career switch and becoming a math teacher. He spent most of the day at Weston High School, talking with teachers and kids and observing classes…. Read More ›
Learning Strategies 