Math

Puzzle of the Week

It’s a dark panel in a dark elevator, so I’m not sure how well you can see the details, but this is the elevator panel in the hotel where Barbara and I have been staying in NYC. The puzzle is… Read More ›

Code Girls

You know how college recommendation forms often ask “What three words first come to mind about this applicant?” In the case of Code Girls: The Untold Story of the American Women Codebreakers of World War II, the three words would be fascinating, absorbing,… Read More ›

No Pi Day?

This is the first time in 26 years that I haven’t been able to observe a weekday Pi Day with any of my classes. Sigh. But there are plenty of online resources for my past, present, and future students.

How many Tater Tots?

Great Fermi problem that I just heard on the Ask Me Another quiz show on NPR: Estimate how many Tater Tots were consumed in the U.S. during all of 2017. Correct answer will be posted in this space tomorrow.

Moral hazard?

“You learn something new every day of your life,” my dad used to say to me. He was right, of course. A week ago I learned a concept that is, apparently, familiar to economists and philosophers but was for some… Read More ›

Feedback from 46 years ago

Going through some old papers, I came across a summary of student feedback from Relations & Functions, a course I team-taught at Lincoln-Sudbury (L–S). This was more-or-less equivalent to today’s Honors Precalculus, and it’s instructive to consider the similarities and… Read More ›

Awesome!

I can’t help keeping track. Four restaurant meals ago, at the Menotomy Grill, our young server said “Awesome!” four times during our meal. I foolishly thought that would be some kind of record. Lower Mills Tavern was better: just two… Read More ›

The golden meanie

Fellow math nerds: check out Sandra Boynton’s pet, Fibonacci. Of course he’s a golden meanie: She describes him thus: The Golden Meanie is a mythical beast of pleasing proportions but unpleasant temperament. Oh well. You can’t have everything.