Domino Spiral
Found by Timon Piccini: Any questions? Well of course there are. He sets up the 3-act #wcydwt structure here. Check it out. Great stuff.
Author Archives: Dan
Obfusticated Mandelbrot Set
Coolest thing I’ve seen in a while: High Resolution Mandelbrot code in Python. The following Python script, on the other hand, begins as ASCII art: It renders the Mandelbrot set as a full-color, anti-aliased, 1500×1000 image. Fantastic. Notice that the … Continue reading
Little Gauss and the Dividing Time Puzzler
I gave this problem to the Precalc Honors class, right before their lunch (the block is split into two parts). A couple of them came back with the solution, but most had chosen to eat and socialize (how dare they!). An … Continue reading
Cartalk Puzzler – Dividing Time
From Cartalk. Dividing Time RAY: Draw a clock face on a piece of paper. Using Arabic numerals put the appropriate numbers at 12, 1, 2, 3 and so on. Now, somewhere on the clock face, draft two lines. In doing … Continue reading
Twitter Graph Story #anyqs
To no one surprise, [removed] was lowest on Monday afternoons and through Tuesday, the beginning of the work week, and rose later in the week, peaking on Saturday and Sunday. The pattern on weekend days was shifted about two … Continue reading
Cartalk Puzzler: An Interesting Series of Numbers
A new cartalk puzzler is up. When my kids were in school, they, like all the other kids I guess, had to learn their numbers. So each day for homework, they would bring home a list of numbers on a … Continue reading
Drag Race #wcydwt
Act 1 http://vimeo.com/29051572 What questions do you have? Act 2 Talk about why the highest horsepower might not be that fast (10,000 horsepower vehicle that you could beat with a Toyota Prius). Ask what other things are important for going … Continue reading
1st Day for Intro to Programming: Lightbot
I forget who introduced the Light-bot game to me, but thank you. I got the link from Hélène Martin. Much thanks! First day went excellent in Introduction to Programming class. “We get to play a game?” Introduction to loops, functions (methods), and debugging all … Continue reading
Cartalk Puzzler: License Plate
Great puzzler from cartalk: Deep Tanning RAY: You’re driving past a high school parking lot on a fine spring afternoon in Our Fair City, watching the kids try to do wheelies with their parents’ station wagons. You happen to notice … Continue reading
Responses to NYT article on “How to Fix Our Math Education”
Original on How to Fix Our Math Education article is found here. Some great responses were mailed in. Sol Garfunkel and David Mumford are right to observe that the everyday usefulness of our high school math curriculum leaves much to … Continue reading