RAY: Everyone, almost everyone remembers the Pythagorean Theorem. A squared, plus B squared, equals C squared. And there are numbers like three, four and five; five, 12, 13 which satisfy that little equation.Many hundreds of years ago a French mathematician by the name of Fermat said, this only works for squares. There is no A cubed […]
I’m happy to let you all know that I’m a New York State finalist for the Presidential Award for Excellence in Math and Science Teaching (PAEMST). I worked on the application this past spring. I enjoyed the reflective nature of the application; it required a detailed description of a recorded lesson, and also a detailed […]
With the IB exams coming up soon, I’ve started to put more thought into what we should do after the exams (we’ll have 8 blocks or so). For the past three years we did free-form math projects and last year they even wrote up great blog posts about their projects. But due to less time left […]
From Car Talk: RAY: This Puzzler came from Kevin Tobin. A maharajah owned a mango tree that had very sweet, abundant fruit. People would come from miles around to pick the fruit. So the maharajah decided to protect the tree by erecting a series of seven concentric fences around it. Each fence had a gate […]
This tweet was retweeted by Steve Strogatz: @stevenstrogatz great @Mathologer video on the cardioid and its family: https://t.co/ElDxW67N3X — Anna Lukács (@launknaacs) November 6, 2015 What a great video, linking linear functions, cardiods, and the family of Mandelbrot sets. Rang my bell. Here’s some of my previous lessons and experiments that involved these things: The Mandelbrot […]
PSA: check out Anna Weltman’s new book, This Is Not A Math Book. Looks great. Also check out Dan Meyer’s fall contest (ends 10/6/15) that asks the students to be creative in making their own Loop-de-loop mathematical art. Programming connection: have the students make their loop-de-loop with python and turtles, here is a 3-5-2 loop-de-loop: […]
From the fantastic car talk puzzler: NEW BARBER MATH RAY: A barber had his first customer of the day, who happened to be a friend. When he was done, the barber refused to take the money from the customer. The fellow said, “Look, I know we’re friends, but, business is business. I want to pay […]
For future info, I’ll be posting the “art” images that I make with processing on tumblr, specifically the recursiveprocessing.tumblr.com. So follow there if interested. If not, then don’t! Here’s a sample of the stuff going up on that site.
Just playing around with Processing. Inspired by tumblrs like Experiments in Processing and Bees and Bombs. Code is found here. Edit: Pulsar 2: Code is found here.
From Car Talk: TOM: Three guys go out fishing. They decide in advance that whatever they catch, they’re going to divvy it up equally.So, they finish fishing for the day. They pull back into port, and they’re going to sleep on the boat overnight. They’re going to get up in the morning, divvy up the […]