The Teaching of Arithmetic: The Story of an experiment. In the fall of 1929 I made up my mind to try the experiment of abandoning all formal instruction in arithmetic below the seventh grade and concentrating on teaching the children to read, to reason, and to recite - my new Three R's. And by reciting I did not mean giving back, verbatim, the words of the teacher or of the textbook. I meant speaking the English language. I picked out five rooms - three third grades, one combining the third and fourth grades, and one fifth grade. I asked the teachers if they would be willing to try the experiment.
posted by Wolfdog
on Mar 8, 2014 -
Each month, the Notices of the American Math Society runs a column called "What is...." which aims to explain an advanced mathematical concept in two pages, at a level accessible to a good undergrad math major. Armin Straub, a postdoc at Illinois, has collected them all in one place
. [more inside]
posted by escabeche
on Feb 26, 2014 -
"He calls this the Tao of Hawkeye. You can’t just have a database around Hawkeye, right? Not if you really want to understand Hawkeye over time. Because Hawkeye isn’t just Hawkeye. He’s also Ronin and Goliath and Clint Barton. Sometimes he’s dead. Oh, and by the way: he started as a villain. Who remembers that?
-- Back in the eighties people like Mark Gruenwald and Peter Sanderson guarded Marvel Comics' continuity. These days Peter Olson tries to do the same for a much bigger Marvel using science and math
posted by MartinWisse
on Nov 4, 2013 -
This is one example of a phenomenon I noticed throughout this chart: natural rival franchises tend to have similar numbers of goon seasons. This would suggest that goon employment may be (in some instances) localized arms races between rivals, whose cyclical number of goons tends to reflect the other’s in some perverted game of Mutually Assured Terrible Hockey (MATH)... We also have a team like Detroit near the bottom of the list, with only 8.5 goon seasons in their history. Since 1985-86, the Wings have only had 4.5 goon seasons. They’ve only had 2 goon seasons since 1988-89. Coincidentally, they’ve been pretty damned swell at winning hockey games since that time. The Evolution of Goon Culture in the NHL
posted by mannequito
on Sep 28, 2013 -
If the NSA is able to break through banks' computer security, does that mean it solved the prime factorization problem?
The New York Times reported
recently that “the agency has circumvented or cracked much of the encryption, or digital scrambling, that guards global commerce and banking systems.” Since banks' encryption codes rely on the fact that nobody knows how to find the prime factors of really large numbers, it could mean that the NSA has found a way to do that. Or it could mean that the NSA has simply gotten lots of banks to give up their information, or found other ways around their encryption. But if they've cracked this long-standing math problem, might the secret leak? What would be the effects?
posted by Sleeper
on Sep 12, 2013 -
is a searchable 2-dimensional visualization of the 800,000+ scientific papers (mostly in physics and math) on the arXiv preprint server.
posted by escabeche
on Aug 18, 2013 -
This is a visualization of Beach Boys vocals inspired by the physics of church bells. Using a mathematical relationship between a the circumference of a circular surface and pitch, I wrote code that draws a circle for each note of the song.
(Single Link Vimeo)
posted by Navelgazer
on Aug 14, 2013 -
"It's just one of those days where you wake up thinking that if you jazzed up Stravinsky's Owl And The Pussycat it'd be awesome..."
[SLYT] [more inside]
posted by motty
on Jun 27, 2013 -