At the briefing on Friday, Mr. Polakow-Suransky, the chief academic officer, said that last year the city created a Web site where teachers could verify that the reports contained information based on students and classes they actually taught. About 37 percent of teachers with reports entered the site and reviewed three years’ worth of class rosters. City officials said 3 percent of these teachers discovered that their reports were based on classes they never taught. And on average, one correction was made per report.

Most teachers who received reports did not try to correct them, and officials said it was possible that errors remained on their teacher data reports.

After grandma, George is my favorite relative. He's delightfully enthusiastic, but also thoughtful:

1.Prison map overwhelm. 2."I've only included about 700 (14%) of the best photos." #affective by @joshbegley via@blprnt

Fomenko is a topologist and illustrator, AND he argues for an alternate history. New Chronology: So weird it's good.

RT @butdoesitfloat: Drawings and paintings by mathematician Anatoly Fomenko

More about the #SchoolOfData:

Great stuff going on right now at the @SchoolOfData sprint:

@blprnt I request that this panel crush like this:

Congressional Kindness, in which I count kindness in the congressional record and also tell you a story: #smalldata

Quantum entanglement. "'Spooky action at a distance' redirects here" : via @moebio, who's brain I'd like to download.

@moebio @mahirmyavuz @visualisingdata you're too fast! I was lost in examples of convergent evolution:

Signed. Require free access over the Internet to scientific journal articles arising from taxpayer-funded research.

RT @kissane: In which the Perl 5.16.0 release epigraph and MLK's "Loving Your Enemies" turn out to be the same: htt ...

Best for last

Full eclipsin'

Data requires context. Please, please read this. RT @MathUpdate The worst eighth-grade math teacher in New York City

@pitchinteractiv Good luck! The patio at Jupiter is a nice spot to have beer while obsessively refreshing craigslist:

@matthewepler FYI: "information visualization sexpert" needed at IBM. :-D via @eagereyes

@matthewepler FYI: "information visualization sexpert" needed at IBM. :-D via @eagereyes

..... for @jdhollis via @rogre

Yes! TweenLite, TweenMax, TimelineLite and TimelineMax by @greensock are finally available for JavaScript. #animation

“Whatever became of the moment when one first knew about death?” Rosencrantz wonders in Tom Stoppard’s Rosencrantz and Guildenstern Are Dead. “There must have been one. A moment. In childhood. When it first occurred to you that you don't go on forever. Must have been shattering. Stamped into one's memory. And yet, I can't remember it.”

This is what sets your items apart from from every other product in the world. Every shop has real people behind it, and those people have unique stories to tell.

RT @ReaderMeter: A new bill devastates the Census Bureau's ability to report data on the status of US economy and society ...

In emergent systems, once a stable equilibrium emerges in a given system, perturbations must come from outside the system in order to produce certain kinds of observable change. The Game of Life won't do anything new after a certain point if someone doesn't come and make it do something new. (Is the "interesting" type of Wolfram's cellular automata at 'equilibrium' in its predictable unpredictability?) Where does novelty come from in emergent systems, especially in terms of applyiing them to human history and the human future?

D-a-m-n. MT @kissane I'm way late on this, but this essay on Hulk-ness by @FILMCRITHULK at The NYer is really good:

a prison cell upgrade can be purchased for $82 a day in Santa Ana,Calif.,and for $8 solo drivers in Minneapolis can buy access to car pool lanes on public roadways. Earlier this year,officials at Santa Monica College attempted to allow students to buy spots in oversubscribed classes for $462 per course.