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SSS 2008-04-25

时间:2010-05-13 07:13来源:互联网 提供网友:0922013129   字体: [ ]
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This is Scientific American's 60-Second Science, I'm Adam Hinterthuer, got a minute?

If a train heading east leaves Chicago at noon, and a train heading west leaves New York an hour later, would that make you any better at math? New evidence says "No ". In a report in the April 25th issue of the journal Science, researchers from Ohio State University say the preferred method of teaching math just doesn't make the grade. The researchers taught undergraduates mathematical principles they would need to solve future problems. Some were taught using concrete visual examples like cups filled with water, or a pizza cut into slices. Other students learned abstract formulas in terms like n=x. When asked to solve new problems using these teachings, major discrepancies1 appeared. In one case, abstract learning students scored an average of 80 percent on their test, their real-world counterparts, however, seemed unable to transfer their knowledge to a new situation, posting only a 44 percent average. The researchers say using concrete examples is alluring2, because students seem to learn lessons faster. However, students who take the time to get abstract concepts down are able to get on the train before it leaves the station.

 

Thanks for the minute, for Scientific American's 60-Second Science, I'm Adam Hinterthuer.
 


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1 discrepancies 5ae435bbd140222573d5f589c82a7ff3     
n.差异,不符合(之处),不一致(之处)( discrepancy的名词复数 )
参考例句:
  • wide discrepancies in prices quoted for the work 这项工作的报价出入很大
  • When both versions of the story were collated,major discrepancies were found. 在将这个故事的两个版本对照后,找出了主要的不符之处。 来自《简明英汉词典》
2 alluring zzUz1U     
adj.吸引人的,迷人的
参考例句:
  • The life in a big city is alluring for the young people. 大都市的生活对年轻人颇具诱惑力。
  • Lisette's large red mouth broke into a most alluring smile. 莉莎特的鲜红的大嘴露出了一副极为诱人的微笑。
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