Thursday, December 03, 2015

The Politics of Math Education




Photo

CreditRobert Stolarik for The New York Times







Pittsburgh — AMERICAN children have been bad at math for well over a century now. As early as 1895, educational reformers lamented Americans’ “meager results” in the subject. Over the years, critics of math education in this country have cycled through a set of familiar culprits, blaming inadequate teacher training, lackluster student motivation and faulty curricular design. Today’s debates over the Common Core mathematical standards are just the latest iteration of this dispute.

Although these issues are important — no reform can ever succeed without considering teacher training and textbook design — resolving them will never make the underlying question of how to teach math “go away.” This is because debates about learning mathematics are debates about how educated citizens should think generally. Whether it is taught as a collection of facts, as a set of problem-solving heuristics or as a model of logical deduction, learning math counts as learning to reason. That is, in effect, a political matter, and therefore inherently contestable. Reasonable people can and will disagree about it.
Perhaps no reform has illustrated this point as clearly as the wide range of mid-20th-century curricular changes known as the new math. Many of these reforms promised that the introduction of sets, nondecimal bases and formal definitions would lead students to think of math as more than just a bunch of dusty facts: It was a powerful and rigorous way of approaching complex problems.
The new math was widely praised at first as a model bipartisan reform effort. It was developed in the 1950s as part of the “Cold War of the classrooms,” and the resulting textbooks were most widely disseminated in the 1960s, with liberals and academic elites promoting it as a central component of education for the modern world. The United States Chamber of Commerce and political conservatives also praised federal support of curriculum reforms like the new math, in part because these reforms were led by mathematicians, not so-called progressive educators.
By the 1970s, however, conservative critics claimed the reforms had replaced rigorous mathematics with useless abstractions, a curriculum of “frills,” in the words of Congressman John M. Ashbrook, Republican of Ohio. States quickly beat a retreat from new math in the mid-1970s and though the material never totally disappeared from the curriculum, by the end of the decade the label “new math” had become toxic to many publishers and districts.
Though critics of the new math often used reports of declining test scores to justify their stance, studies routinely showed mixed test score trends. What had really changed were attitudes toward elite knowledge, as well as levels of trust in federal initiatives that reached into traditionally local domains. That is, the politics had changed.


Whereas many conservatives in 1958 felt that the sensible thing to do was to put elite academic mathematicians in charge of the school curriculum, by 1978 the conservative thing to do was to restore the math curriculum to local control and emphasize tradition — to go “back to basics.” This was a claim both about who controlled intellectual training and about what forms of mental discipline should be promoted. The idea that the complex problems students would face required training in the flexible, creative mathematics of elite practitioners was replaced by claims that modern students needed grounding in memorization, militaristic discipline and rapid recall of arithmetic facts.
The fate of the new math suggests that much of today’s debate about the Common Core’s mathematics reforms may be misplaced. Both proponents and critics of the Common Core’s promise to promote “adaptive reasoning” alongside “procedural fluency” are engaged in this long tradition of disagreements about the math curriculum. These controversies are unlikely to be resolved, because there’s not one right approach to how we should train students to think.
We need to get away from the idea that math education is only a matter of selecting the right textbook and finding good teachers (though of course those remain very important). The new math’s reception was fundamentally shaped by Americans’ trust in federal initiatives and elite experts, their demands for local control and their beliefs about the skills citizens needed to face the problems of the modern world. Today these same political concerns will ultimately determine the future of the Common Core.
As long as learning math counts as learning to think, the fortunes of any math curriculum will almost certainly be closely tied to claims about what constitutes rigorous thought — and who gets to decide.

The Politics of Math Education - The New York Times

The Politics of Math Education - The New York Times:



"Pittsburgh — AMERICAN children have been bad at math for well over a century now. As early as 1895, educational reformers lamented Americans’ “meager results” in the subject. Over the years, critics of math education in this country have cycled through a set of familiar culprits, blaming inadequate teacher training, lackluster student motivation and faulty curricular design. Today’s debates over the Common Core mathematical standards are just the latest iteration of this dispute."



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Former Massey Energy C.E.O. Guilty in Deadly Coal Mine Blast - The New York Times

Former Massey Energy C.E.O. Guilty in Deadly Coal Mine Blast - The New York Times:



"CHARLESTON, W.Va. —


Donald L. Blankenship, a titan of the nation’s coal industry whose approach to business was scrutinized and scorned after 29 workers were killed at the Upper Big Branch mine in 2010, was convicted Thursday of a federal charge of conspiring to violate mine safety that stemmed from the accident, the deadliest in mining in the United States in decades."



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FIFA corruption scandal: More Swiss arrests - CNN.com

FIFA corruption scandal: More Swiss arrests - CNN.com:



"(CNN)More arrests and more allegations of bribery -- seemingly just another day at the organization that's in charge of running one of the world's most popular sports."



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Is Donald Trump a Fascist? - The New York Times

Is Donald Trump a Fascist? - The New York Times:



"The Republican establishment, that lumbering beast, still can’t decide on how and whether and when to go after Donald J. Trump. But last week a few Republican insiders floated an accusation that you usually hear liberals sling against the right: That the real estate magnate turned populist is actually a fascist."



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Hawaii Court Rescinds Permit to Build Thirty Meter Telescope - The New York Times

Hawaii Court Rescinds Permit to Build Thirty Meter Telescope - The New York Times:



 "HILO, Hawaii — The State Supreme Court on Wednesday rescinded the construction permit for the Thirty Meter Telescope, a $1.4 billion observatory planned for the state’s tallest mountain, Mauna Kea, a revered symbol in Hawaiian culture."



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Wednesday, December 02, 2015

James Hansen, Climate Scientist Turned Activist, Criticizes Paris Talks

James E. Hansen at his farm in Pennsylvania, in 2013. CreditMichael Nagle for The New York Times



LE BOURGET, France — James E. Hansen, the retired NASA climate scientist, issued a stark warning Wednesday that the deal being negotiated here was nowhere close to what was needed to avert dangerous levels of global warming.
“This is half-assed and it’s half-baked,” Dr. Hansen said in a public forum on the sidelines of the conference. He said that the deal, praised by world leaders including President Obama, would allow emissions to continue to increase — until 2030, in the case of China — when what was needed is an immediate and rapid reduction.
The remarks were less notable for what Dr. Hansen said – he has long held a dim view of United Nations climate talks – than for where and when he said them.
Dr. Hansen, who retired in 2013 after decades in charge of the NASA Goddard Institute for Space Studies in New York, was making his first appearance at one of the annual U.N. climate conferences. He was introduced as “the Paul Revere of the climate-change movement” before an public interview for a video program.
Dr. Hansen, 74, gained fame in 1988 for warning the United States Congress that global warming had already begun and was a grave threat to future generations. He has been a voice in the wilderness ever since, and the failure of politicians to take the issue seriously has radicalized him. He regularly turns up at climate demonstrations, and has made a point of getting arrested several times.
In his appearance Wednesday, Dr. Hansen dismissed the emerging deal and said the willingness of most countries to offer some kind of emissions reductions was insufficient. Only a handful of countries are responsible for the bulk of emissions, and Dr. Hansen instead called for an agreement among those countries to begin an urgent assault on the problem.
“I’ve met with captains of industry,” Dr. Hansen said. “These people have children and grandchildren. They would like to be part of the solution, if the government would give them the right incentives.”
He repeated his longstanding position that the place to start would be a tax on carbon emissions that would raise the price of high-carbon fuels enough to encourage conservation and a switch to alternative energy sources. The money raised by such a tax should be given back to the public, he said.
Dr. Hansen also supports expansion of nuclear power as a partial solution to the climate crisis, and is expected to join other pro-nuclear scientists in an appearance later in the week. His nuclear stance has put him at odds with some environmental groups, though most of them still regard him as a hero for his warnings about the potential consequences of unchecked warming.
Dr. Hansen sketched out a future of profound climate threats that he said was on the verge of becoming unstoppable, including a potential collapse of the West Antarctic ice sheet, which could cause a rise in the sea levels sufficient to drown many coastal regions.
“Our parents did not know that they were causing a problem for future generations by burning fossil fuels,” Dr. Hansen said. “But we can only pretend we do not know.”

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