Month: November 2010

Don’t dismiss Wikipedia!

The Weston High School Library recently posted a slide show from Rutgers University explaining why students shouldn’t use Wikipedia. This carefully produced polemic deserves a thoughtful rebuttal; I have endeavored to write one here. Be sure to watch the slide… Read More ›

Sleeping moon

Apparently in honor of the holidays, someone has “enhanced” local artist Joseph Wheelwright’s sculpture, Sleeping Moon, which sits prominently in Peabody Square in Dorchester right next to Ashmont Station. I have no idea whether the modification was authorized or not…. Read More ›

An international Thanksgiving

It was another international Thanksgiving at my sister’s house this year — nine Americans and nine visitors from abroad. I counted three from Germany, one from France, one from Korea, three from Taiwan, and apparently one from somewhere Spanish-speaking, but… Read More ›

Why 1 is not prime

At Saturday Course we were working with prime numbers, and one fifth-grader asked his classmates a question: Student A: Is 1 a prime number? Student B: No. Student A: So it’s composite? Student B: No, it isn’t prime and it… Read More ›

The Corrections

Too often I expect to like a certain book and then I’m disappointed. Occasionally the opposite situation happens to me; such is the case with Jonathan Franzen’s The Corrections. I tend to read so much genre fiction and non-fiction that… Read More ›

Feeling like a community

A class ought to feel like a community. (Mathematically speaking, that’s what make it a class, rather than a set. Yes, it’s a slightly different meaning of the word “class,” but the resemblance is not a coincidence.) We’ve all been… Read More ›

Lost in Lexicon

If you regularly see my Facebook status in your News Feed, you may have noticed that it said “I’m lost in Lexicon right now…” on October 17. This status confused some of my students. One of them asked, “How did… Read More ›

Daylight saving time

Why is it that so many people say “daylight savings time” when the correct phrase so clearly is “daylight saving time”???? Do they think it’s like a savings account, where you put an hour of daylight in at one time… Read More ›

Facebook “friends”

Listen in on this conversation: Teacher 1: I hear that you friend your students on Facebook. Teacher 2: Not exactly. I accept friend requests from current and former students. But I never initiate them. Teacher 1: Even so, it’s a… Read More ›