lunes, 2 de septiembre de 2013

Expecting the Best Yields Results in Massachusetts

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BRAINTREE, Mass. — Conventional wisdom and popular perception hold that American students are falling further and further behind in science and math achievement. The statistics from this state tell a different story.
Evan McGlinn for The New York Times
William Kendall, the director of mathematics and technology for the Braintree schools, said it used to be possible to graduate high school without taking algebra.
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If Massachusetts were a country, its eighth graders would rank second in the world in science, behind only Singapore, according to Timss — the Trends in International Mathematics and Science Study, which surveys knowledge and skills of fourth and eighth graders around the world. (The most recent version, in 2011, tested more than 600,000 students in 63 nations.)
Massachusetts eighth graders also did well in mathematics, coming in sixth, behind Korea, Singapore, Taiwan, Hong Kong and Japan. The United States as a whole came in 10th in science and 9th in math, with scores that were above the international average.
Of course, Timss is only one test, and achievement tests are incomplete indicators of educational prowess. But behind Massachusetts’ raw numbers are two decades of sustained efforts to lift science and mathematics education. Educators and officials chose a course and held to it, even when the early results were deeply disappointing.
While Massachusetts has a richer and better-educated population than most states, it is not uniformly wealthy. The gains reflected improvement across the state, including poorer districts.
“I think we are a proof point of what’s possible,” said Mitchell D. Chester, the state education commissioner.
On a sunny day in May, fifth graders at Donald E. Ross Elementary School here were gathered at an outdoor gazebo, learning about fulcrums by using a ruler set up like a seesaw and balancing weights at both ends.
At South Middle School, seventh graders in a science class worked in small groups to brainstorm how a box of items — a plastic jar, beaker, water, and a mix of sand, soil, clay and pebbles — could help answer a question posed by the teacher: How do sediments carried in water get deposited? They devised small experiments and wrote down their observations, and at the end of class each group presented its findings.
None of the topics were novel, but they were consistent in their hands-on approach, inviting students to explore and explain. “Much more hands-on than what we ever used to do,” said Dianne D. Rees, the district’s science director. “Hands-on as much as possible.”
Braintree, a town of about 35,000 south of Boston, is neither an inner-city area nor a wealthy suburb. “We’re sort of, we used to say, a blue-collar area,” said William Kendall, the director of mathematics and technology for the Braintree schools.
When Dr. Kendall arrived in 1973 as a math teacher, the standard approach was talking at the front of the classroom and writing on the blackboard.
Some children learned well from lectures. Others did not. “And it was O.K. those people don’t get it, because only we, the math elite, get it,” Dr. Kendall said.
Back then, one could graduate from high school without ever taking algebra. “Then came ed reform,” Dr. Kendall said, “and now everybody had to learn math.”
Ambitious Goals
“Ed reform” was the Massachusetts Education Reform Act of 1993, passed by a Democratic Legislature and signed by a Republican governor, William F. Weld.
The three core components were more money (mostly to the urban schools), ambitious academic standards and a high-stakes test that students had to pass before collecting their high school diplomas. All students were expected to learn algebra before high school.
“It was a combination of carrots and sticks,” said David P. Driscoll, deputy education commissioner at the time.
Also noteworthy was what the reforms did not include. Parents were not offered vouchers for private schools. The state did not close poorly performing schools, eliminate tenure for teachers or add merit pay. The reforms did allow for some charter schools, but not many.
Then the state, by and large, stayed the course.
The new achievement test, the Massachusetts Comprehensive Assessment System (MCAS for short), was given to 10th graders for the first time in 1998. (The graduation requirement of obtaining an acceptable score on the 10th-grade MCAS did not take effect until 2003.)
The troubled urban schools performed terribly.
In the small city of Chelsea, which borders Boston, almost 90 percent of the students come from low-income families and most did not speak English as their first language. On the first MCAS, two-thirds of Chelsea 10th graders failed math. The science scores were nearly as dismal.
Two years later, scores in the urban districts showed only glacial improvement. A report from the University of Massachusetts at Boston concluded that the reforms were not delivering on the promises.
Critics worried that when the use of MCAS as a graduation requirement kicked in, thousands of students would be deprived of their diplomas and would drop out in despair. Dr. Driscoll, who was elevated to education commissioner in 1998, kept the MCAS.
“People were expecting it to go away,” Robert D. Gaudet, the lead UMass researcher, recalled in a recent interview. “He held to his guns.”
Officials did make adjustments. Students who fail the MCAS can take retake it several times until they pass, and can still graduate if they otherwise demonstrate they have learned the material.
Test scores have risen markedly. Last year, 54 percent of Chelsea 10th graders were proficient or advanced on the math MCAS.
On tests administered by the federal Education Department, Massachusetts, which had been above average, rose to No. 1 among the 50 states in math.
Building Blocks
Two decades after Massachusetts passed its education reform, there is still much disagreement over what were the crucial components to its success.
Some think it was the added money; others note that successful countries operate schools at much lower costs.
Some think high-stakes testing imposed accountability on administrators, teachers and students; others say that it merely added stress and that the proliferation of tests takes away too much time from learning.
Some think the standards gave clarity on what was expected of teachers and students; others say there is little correlation between well-written standards and student performance.
Officials like Dr. Driscoll say all three components were essential.
Dr. Rees, the Braintree schools’ science director, said the standards helped make sure that teachers across the state covered the same subjects, laying the groundwork for subsequent grades.
“There’s a logic to that, a progression,” she said. “You start learning about solids in kindergarten. In first grade, you learn about solids and liquids, and then in second grade, you start to learn about solids and liquids and gases.”
The MCAS has helped Braintree figure out what works and what doesn’t. Middle school students were struggling with chemistry questions on the eighth-grade MCAS. The district changed the order of instruction, covering concrete science concepts in sixth grade and moving some chemistry topics to seventh. “And it worked,” Dr. Rees said. “They’re doing better on their chemistry.”
Still, Massachusetts officials admit they have more to do.
While scores have improved across the board, the gap between the highest achievers and the lowest — notably blacks, Hispanics and special education students — has persisted.
Seeing Results
At East Middle School, the elixir is Kristen Walsh, who teaches math to sixth, seventh and eighth graders with so-called special needs, a potpourri of learning disabilities that includedyslexia and autism. On this day she was introducing a lesson on variables and linear equations with a problem involving gym memberships.
She explained the usual math concepts of beginning algebra — the slope of a line indicating the rate of change, the y intercept where the line intersects the y axis. Where she lingered was less the math concepts but the words used in the word problem, repeatedly checking that the students understood that the “start-up fee” of one health club was the same thing as the membership fee at another.
In essence, she was teaching how to interpret a math problem as much as how to solve it.
Dr. Kendall says teachers now laugh when he tells them that it was once possible to graduate from Braintree High School without ever taking algebra. “You can’t get out of eighth grade without knowing Algebra I now,” he said. “We’re teaching it to everybody, and everybody is having success.”
The first new math standards in Massachusetts, in the 1990s, echoed the “constructivist” pedagogy then in vogue. Students would construct their knowledge through trial and error, resulting in a deeper understanding.
But many parents rebelled, complaining that their children never mastered basic skills. The state officials in charge of the next revision wanted a back-to-basics curriculum. But Dr. Kendall and others argued that that old approach had already failed.
The “math wars” erupted at the turn of the millennium, culminating in a sort of détente — constructivism was purged, but the new Massachusetts standards did not prescribe a new approach. They stated what students were to learn, but not how teachers were to teach. “What came out of it ended up being a good document, because it contained no pedagogy,” Dr. Kendall said.
That allowed teachers like Ms. Walsh to devise and improve.
Take the multiplication table. The traditional approach was to memorize it in order. A strict constructivist would have children figure it out by playing with sticks and other so-called manipulatives.
Braintree combines those approaches, with the teachers guiding the learning in a particular order.
“Now research shows when you’re teaching multiplication facts, you should start with the 2s, go to the 10s, go to the 5s, do the 4, the 8, don’t hit 0, because the idea of multiplying 0 by 0 is complicated, until they’ve got a foundation in multiplication,” Dr. Kendall said. “Do 0 and 1 in about the middle, and save 7 and 3 until the end, because those are the really hard ones.”
He added, “We’re helping them construct their own knowledge in a way that is successful.”
Abby Federico, one of Ms. Walsh’s special-needs students, said her mother told her the middle school math curriculum was much more advanced than when she was in school. “She was like, ‘I learned this stuff in high school,’ ” Abby said.
Dr. Kendall said that special needs students in Braintree used to routinely fail the math MCAS. Now those in Ms. Walsh’s class often get “proficient.”
“It’s pretty easy in my opinion, because Ms. Walsh usually teaches us a lot of methods to use in math to make it seem easier,” Abby said, adding that she might even choose a career that requires math skills.
“Math is pretty nice,” she said.


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Who Will Prosper in the New World - NYTimes.com

Who Will Prosper in the New World - NYTimes.com:

 "Self-driving vehicles threaten to send truck drivers to the unemployment office. Computer programs can now write journalistic accounts of sporting events and stock price movements. There are even computers that can grade essay exams with reasonable accuracy, which could revolutionize my own job, teaching. Increasingly, machines are providing not only the brawn but the brains, too, and that raises the question of where humans fit into this picture — who will prosper and who won’t in this new kind of machine economy?

Who will do well?"

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sábado, 22 de junio de 2013

Social Networking in the 1600s

Hulton Archive/Getty Images
Men enjoying a drink and a chat in a 17th-century coffeehouse.
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LONDON — SOCIAL networks stand accused of being enemies of productivity. According to one popular (if questionable) infographiccirculating online, the use of Facebook, Twitter and other such sites at work costs the American economy $650 billion each year. Our attention spans are atrophying, our test scores declining, all because of these “weapons of mass distraction.”
Yet such worries have arisen before. In England in the late 1600s, very similar concerns were expressed about another new media-sharing environment, the allure of which seemed to be undermining young people’s ability to concentrate on their studies or their work: the coffeehouse. It was the social-networking site of its day.
Like coffee itself, coffeehouses were an import from the Arab world. England’s first coffeehouse opened in Oxford in the early 1650s, and hundreds of similar establishments sprang up in London and other cities in the following years. People went to coffeehouses not just to drink coffee, but to read and discuss the latest pamphlets and news-sheets and to catch up on rumor and gossip.
Coffeehouses were also used as post offices. Patrons would visit their favorite coffeehouses several times a day to check for new mail, catch up on the news and talk to other coffee drinkers, both friends and strangers. Some coffeehouses specialized in discussion of particular topics, like science, politics, literature or shipping. As customers moved from one to the other, information circulated with them.
The diary of Samuel Pepys, a government official, is punctuated by variations of the phrase “thence to the coffeehouse.” His entries give a sense of the wide-ranging conversations he found there. The ones for November 1663 alone include references to “a long and most passionate discourse between two doctors,” discussions of Roman history, how to store beer, a new type of nautical weapon and an approaching legal trial.
One reason these conversations were so lively was that social distinctions were not recognized within the coffeehouse walls. Patrons were not merely permitted but encouraged to strike up conversations with strangers from entirely different walks of life. As the poet Samuel Butler put it, “gentleman, mechanic, lord, and scoundrel mix, and are all of a piece.”
Not everyone approved. As well as complaining that Christians had abandoned their traditional beer in favor of a foreign drink, critics worried that coffeehouses were keeping people from productive work. Among the first to sound the alarm, in 1677, was Anthony Wood, an Oxford academic. “Why doth solid and serious learning decline, and few or none follow it now in the University?” he asked. “Answer: Because of Coffea Houses, where they spend all their time.”
Meanwhile, Roger North, a lawyer, bemoaned, in Cambridge, the “vast Loss of Time grown out of a pure Novelty. For who can apply close to a Subject with his Head full of the Din of a Coffee-house?” These places were “the ruin of many serious and hopeful young gentlemen and tradesmen,” according to a pamphlet, “The Grand Concern of England Explained,” published in 1673.
All of which brings to mind the dire warnings issued by many modern commentators. A common cause for concern, both then and now, is that new media-sharing platforms pose a particular danger to the young.
But what was the actual impact of coffeehouses on productivity, education and innovation? Rather than enemies of industry, coffeehouses were in fact crucibles of creativity, because of the way in which they facilitated the mixing of both people and ideas. Members of the Royal Society, England’s pioneering scientific society, frequently retired to coffeehouses to extend their discussions. Scientists often conducted experiments and gave lectures in coffeehouses, and because admission cost just a penny (the price of a single cup), coffeehouses were sometimes referred to as “penny universities.” It was a coffeehouse argument among several fellow scientists that spurred Isaac Newton to write his “Principia Mathematica,” one of the foundational works of modern science.
Coffeehouses were platforms for innovation in the world of business, too. Merchants used coffeehouses as meeting rooms, which gave rise to new companies and new business models. A London coffeehouse called Jonathan’s, where merchants kept particular tables at which they would transact their business, turned into the London Stock Exchange. Edward Lloyd’s coffeehouse, a popular meeting place for ship captains, shipowners and traders, became the famous insurance market Lloyd’s.
And the economist Adam Smith wrote much of his masterpiece “The Wealth of Nations” in the British Coffee House, a popular meeting place for Scottish intellectuals, among whom he circulated early drafts of his book for discussion.
No doubt there was some time-wasting going on in coffeehouses. But their merits far outweighed their drawbacks. They provided a lively social and intellectual environment, which gave rise to a stream of innovations that shaped the modern world. It is no coincidence that coffee remains the traditional drink of collaboration and networking today.
Now the spirit of the coffeehouse has been reborn in our social-media platforms. They, too, are open to all comers, and allow people from different walks of life to meet, debate, and share information with friends and strangers alike, forging new connections and sparking new ideas. Such conversations may be entirely virtual, but they have enormous potential to bring about change in the real world.
Although some bosses deride the use of social media in the workplace as “social notworking,” more farsighted companies are embracing “enterprise social networks,” essentially corporate versions of Facebook, to encourage collaboration, discover hidden talents and knowledge among their employees, and reduce the use of e-mail. A study published in 2012 by McKinsey & Company, the consulting firm, found that the use of social networking within companies increased the productivity of “knowledge workers” by 20 to 25 percent.
The use of social media in education, meanwhile, is backed by studies showing that students learn more effectively when they interact with other learners. OpenWorm, a pioneering computational biology project started from a single tweet, now involves collaborators around the world who meet via Google Hangouts. Who knows what other innovations are brewing in the Internet’s global coffeehouse?
There is always an adjustment period when new technologies appear. During this transitional phase, which can take several years, technologies are often criticized for disrupting existing ways of doing things. But the lesson of the coffeehouse is that modern fears about the dangers of social networking are overdone. This kind of media, in fact, has a long history: Martin Luther’s use of pamphlets in the Reformation casts new light on the role of social media in the Arab Spring, for example, and there are parallels between the gossipy poems that circulated in pre-Revolutionary France and the uses of microblogging in modern China.
As we grapple with the issues raised by new technologies, there is much we can learn from the past.
Tom Standage is the digital editor at The Economist and the author of the forthcoming book “Writing on the Wall: Social Media — The First 2,000 Years.”


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miércoles, 12 de junio de 2013

Manifiesto por el Desarrollo Ágil de Software

Manifiesto por el Desarrollo Ágil de Software:

Manifiesto por el Desarrollo Ágil de Software




Estamos descubriendo formas mejores de desarrollar
software tanto por nuestra propia experiencia como
ayudando a terceros. A través de este trabajo hemos
aprendido a valorar:
Individuos e interacciones sobre procesos y herramientas

Software funcionando sobre documentación extensiva

Colaboración con el cliente sobre negociación contractual

Respuesta ante el cambio sobre seguir un plan

Esto es, aunque valoramos los elementos de la derecha, valoramos más los de la izquierda.


Kent Beck
Mike Beedle
Arie van Bennekum
Alistair Cockburn
Ward Cunningham
Martin Fowler
James Grenning
Jim Highsmith
Andrew Hunt
Ron Jeffries
Jon Kern
Brian Marick
Robert C. Martin
Steve Mellor
Ken Schwaber
Jeff Sutherland
Dave Thomas

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miércoles, 29 de mayo de 2013

How to Get a Job

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Underneath the huge drop in demand that drove unemployment up to 9 percent during the recession, there’s been an important shift in the education-to-work model in America. Anyone who’s been looking for a job knows what I mean. It is best summed up by the mantra from the Harvard education expert Tony Wagner that the world doesn’t care anymore what you know; all it cares “is what you can do with what you know.” And since jobs are evolving so quickly, with so many new tools, a bachelor’s degree is no longer considered an adequate proxy by employers for your ability to do a particular job — and, therefore, be hired. So, more employers are designing their own tests to measure applicants’ skills. And they increasingly don’t care how those skills were acquired: home schooling, an online university, a massive open online course, or Yale. They just want to know one thing: Can you add value?
Josh Haner/The New York Times
Thomas L. Friedman
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One of the best ways to understand the changing labor market is to talk to the co-founders of HireArt (www.hireart.com): Eleonora Sharef, 27, a veteran of McKinsey; and Nick Sedlet, 28, a math whiz who left Goldman Sachs. Their start-up was designed to bridge the divide between job-seekers and job-creators.
“The market is broken on both sides,” explained Sharef. “Many applicants don’t have the skills that employers are seeking, and don’t know how to get them. But employers also ... have unrealistic expectations.” They’re all “looking for purple unicorns: the perfect match. They don’t want to train you, and they expect you to be overqualified.” In the new economy, “you have to prove yourself, and we’re an avenue for candidates to do that,” said Sharef. “A degree document is no longer a proxy for the competency employers need.” Too many of the “skills you need in the workplace today are not being taught by colleges.”
The way HireArt works, explained Sharef (who was my daughter’s college roommate), is that clients — from big companies, like Cisco, Safeway and Airbnb, to small family firms — come with a job description and then HireArt designs online written and video tests relevant for that job. Then HireArt culls through the results and offers up the most promising applicants to the company, which chooses among them.
With 50,000 registered job-seekers on HireArt’s platform, the company receives about 500 applicants per job opening, said Sharef, adding: “While it’s great that the Internet allows people to apply to lots of jobs, it has led to some very unhealthy behavior. Job-seekers tell me that they apply to as many as 500 jobs in four to five months without doing almost any research. One candidate told me he had written a computer program that allowed him to auto-apply to every single job on Craigslist in a certain city. Given that candidates don’t self-select, recruiters think of résumés as ‘mostly spam,’ and their approach is to ‘wade through the mess’ to find the treasures. Of these, only one person gets hired — one out of 500 — so the ‘success rate’ is very low for us and for our candidates.”
How are people tested? HireArt asks candidates to do tasks that mimic the work they would do on the job. If it is for a Web analytics job, HireArt might ask: “You are hired as the marketing manager at an e-commerce company and asked to set up a Web site analytics system. What are the key performance indicators you would measure? How would you measure them?”
Or, if you want to be a social media manager, said Sharef, “you will have to demonstrate familiarity with Twitter, Facebook, Pinterest, Google+, HTML, On-Page SEO and Key Word Analysis.” Sample question: “Kanye West just released a new fashion collection. You can see it here. Imagine you had to write a tweet promoting this collection. What would your tweet be?” Someone applying for a sales job would have to record a sales pitch over video.
Added Sharef: “What surprises me most about people’s skills is how poor their writing and grammar are, even for college graduates. If we can’t get the basics right, there is a real problem.” Still, she adds, HireArt sees many talented people who are just “confused about what jobs they are qualified for, what jobs are out there and where they fit in.”
So what does she advise? Sharef pointed to one applicant, a Detroit woman who had worked as a cashier at Borders. She realized that that had no future, so she taught herself Excel. “We gave her a very rigorous test, and she outscored people who had gone to Stanford and Harvard. She ended up as a top applicant for a job that, on paper, she was completely unqualified for.”
People get rejected for jobs for two main reasons, said Sharef. One, “you’re not showing the employer how you will help them add value,” and, two, “you don’t know what you want, and it comes through because you have not learned the skills that are needed.” The most successful job candidates, she added, are “inventors and solution-finders,” who are relentlessly “entrepreneurial” because they understand that many employers today don’t care about your résumé, degree or how you got your knowledge, but only what you can do and what you can continuously reinvent yourself to do.

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