Saturday, August 16, 2014

More massacres in Iraq and Syria; Fear of a tech bubble; Teaching is not a business

1 More massacres in Iraq and Syria (BBC) Islamic State (IS) militants have been accused of massacring hundreds of people in areas under their control in northern Iraq and eastern Syria. At least 80 members of the Yazidi religious minority are believed to have been killed with women and children abducted in a village in Iraq. IS is also accused of killing 700 tribesmen opposing them in Syria's Deir Ezzor province, over a two-week period. The violence has displaced an estimated 1.2 million people in Iraq alone.
US aircraft are providing air support for Kurdish forces in northern Iraq to drive back the militants and retake the strategic Mosul dam. US Central Command said it carried out nine air strikes on Saturday, hitting targets near Irbil and the dam. The UK, Germany and other countries are delivering humanitarian aid for refugees in the north.
IS first emerged in Syria, fighting President Bashar al-Assad during the ongoing civil war there, but it has since overrun parts of northern Iraq, making its capital in the city of Mosul. Pursuing an extreme form of Sunni Islam, it has persecuted non-Muslims and Shia Muslims, whom it regards as heretics.
2 Fear of a tech bubble ( Charles Arthur in The Guardian) What constitutes a technology bubble? If it's gigantic valuations, you don't have to look far. When venture capital company Andreessen Horowtiz put $85m last week into online publisher Buzzfeed in exchange for 10% of its equity, that implied BuzzFeed was worth $850m, more than the 137-year-old Washington Post. Five-year-old Uber raised a little over $1.2bn from venture capitalist for about 5% of its equity, to give it that $17bn valuation.

And if Snapchat, the vanishing-picture service, could turn down a $3bn offer from Facebook in November 2013 (according to the Wall Street Journal) and was in talks last month with China’s Alibaba over funding that could value it at $10bn, isn't that evidence of a bubble?

But are the foundations solid enough to stop sky-high valuations crashing down? The latest debate over whether we're in a "tech bubble" has been raging in Silicon Valley and beyond since at least late 2010, when venture capitalist John Doerr suggested we were entering a "third wave" of innovation, focused on smartphones and social networking. To the suggestion that valuations were – even then – "overheated", Doerr replied: "I prefer to think of these bubbles as booms. I think booms are good. Booms lead to overinvestment, to full employment. Booms lead to lots of innovation."

"In some ways, the sharing economy is a throwback to the pre-industrial age, when village communities had to share resources to survive," says John Hawksworth, PwC's chief economist. "They built up trust through repeated interactions with people they had known all their lives.”

http://www.theguardian.com/technology/2014/aug/17/technology-bubble-uber-snapchat-buzzfeed
3 Teaching is not a business (David L Kirp in The New York Times) Today’s education reformers believe that schools are broken and that business can supply the remedy. Some place their faith in the idea of competition. Others embrace disruptive innovation, mainly through online learning. Both camps share the belief that the solution resides in the impersonal, whether it’s the invisible hand of the market or the transformative power of technology.
Neither strategy has lived up to its hype, and with good reason. It’s impossible to improve education by doing an end run around inherently complicated and messy human relationships. Marketplace mantras dominate policy discussions. High-stakes reading and math tests are treated as the single metric of success, the counterpart to the business bottom line. Teachers whose students do poorly on those tests get pink slips, while those whose students excel receive merit pay, much as businesses pay bonuses to their star performers and fire the laggards. This approach might sound plausible in a think tank, but in practice it has been a flop.
Firing teachers, rather than giving them the coaching they need, undermines morale. In some cases it may well discourage undergraduates from pursuing careers in teaching, and with a looming teacher shortage as baby boomers retire, that’s a recipe for disaster. Merit pay invites rivalries among teachers, when what’s needed is collaboration. Closing schools treats everyone there as guilty of causing low test scores, ignoring the difficult lives of the children in these schools — “no excuses,” say the reformers, as if poverty were an excuse.
While these reformers talk a lot about markets and competition, the essence of a good education — bringing together talented teachers, engaged students and a challenging curriculum — goes undiscussed. Business does have something to teach educators, but it’s neither the saving power of competition nor flashy ideas like disruptive innovation. Instead, what works are time-tested strategies..
While technology can be put to good use by talented teachers, they, and not the futurists, must take the lead. The process of teaching and learning is an intimate act that neither computers nor markets can hope to replicate. Small wonder, then, that the business model hasn’t worked in reforming the schools — there is simply no substitute for the personal element.

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