美国学生需要用新方法了解科学
文章来源:未知 文章作者:enread 发布时间:2012-04-06 02:57 字体: [ ]  进入论坛
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American students need a dramatically new approach to improve how they learn science, says a noted1 group of scientists and educators led by Michigan State University professor William Schmidt. After six years of work, the group has proposed a solution. The 8+1 Science concept calls for a radical2 overhaul3 in K-12 schools that moves away from memorizing scientific facts and focuses on helping4 students understand eight fundamental science concepts. The "plus one" is the importance of inquiry5, the practice of asking why things happen around us -- and a fundamental part of science.

"Now is the time to rethink how we teach science," said Schmidt, University Distinguished6 Professor of statistics and education. "What we are proposing through 8+1 Science is a new way of thinking about and teaching science, not a new set of science standards. It supports basic concepts included in most sets of state standards currently in use and complements7 standards-based education reform efforts."

The group of scientists has met with Schmidt in an effort to rethink how science should be taught since 2006, when it was originally part of the PROM/SE research project (Promoting Rigorous Outcomes in Mathematics and Science Education) funded by the National Science Foundation.

The 8+1 concepts were derived8 from two basic questions: What are things made of and how do systems interact and change? The eight concepts are: atoms, cells, radiation, systems change, forces, energy, conservation of mass and energy, and variation.

Traditionally, science in the United States has been taught in isolated9 disciplines such as chemistry, biology and physics without clear connections being made between the subjects. The 8+1 effort encourages K-12 teachers to use the eight science concepts to build understanding within and between their courses as students advance through the grades.

"The natural world seems to operate through these laws and concepts, but when it comes to schooling10 we don't teach children these laws and then show how these apply in different situations," Schmidt said.

Simon Billinge, an 8+1 committee member and professor of applied11 physics and mathematics at Columbia University, said the aim is for students to see, for example, the physics within biology and the chemistry within physics, so they can gain an understanding of science that transcends12(超越) disciplinary lines.

Today's frontiers in science often occur at these disciplinary edges. Aided by the explosion in technology and scientific discoveries, new fields are arising that were hardly imagined a generation ago such as synthetic13(综合,合成的) biology, digital organisms and genomics.

Most states are participating in a process to develop new K-12 science standards that are more relevant, coherent and based on international benchmarks.

Stephen Pruitt, vice14 president of Achieve, a nonprofit organization managing the state-led effort, said 8+1 Science can work hand-in-hand with his organization's effort -- called Next Generation Science Standards -- "to change the way we think about science education."

"The emphasis is about helping students learn key concepts in science, rather than just facts," Pruitt said.

Results from the 2009 National Assessment15 of Educational Progress show only 34 percent of fourth-graders and 21 percent of 12th-graders were proficient16 in their science knowledge. Internationally, U.S. students ranked a mediocre17 23rd in their science knowledge among countries studied by the Program for International Student Assessment.



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1 noted 5n4zXc     
adj.著名的,知名的
参考例句:
  • The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
  • Jim is noted for arriving late for work.吉姆上班迟到出了名。
2 radical hA8zu     
n.激进份子,原子团,根号;adj.根本的,激进的,彻底的
参考例句:
  • The patient got a radical cure in the hospital.病人在医院得到了根治。
  • She is radical in her demands.她的要求十分偏激。
3 overhaul yKGxy     
v./n.大修,仔细检查
参考例句:
  • Master Worker Wang is responsible for the overhaul of this grinder.王师傅主修这台磨床。
  • It is generally appreciated that the rail network needs a complete overhaul.众所周知,铁路系统需要大检修。
4 helping 2rGzDc     
n.食物的一份&adj.帮助人的,辅助的
参考例句:
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
5 inquiry nbgzF     
n.打听,询问,调查,查问
参考例句:
  • Many parents have been pressing for an inquiry into the problem.许多家长迫切要求调查这个问题。
  • The field of inquiry has narrowed down to five persons.调查的范围已经缩小到只剩5个人了。
6 distinguished wu9z3v     
adj.卓越的,杰出的,著名的
参考例句:
  • Elephants are distinguished from other animals by their long noses.大象以其长长的鼻子显示出与其他动物的不同。
  • A banquet was given in honor of the distinguished guests.宴会是为了向贵宾们致敬而举行的。
7 complements 5a1152804ff4d812e4b400d5b206fc89     
补充( complement的名词复数 ); 补足语; 补充物; 补集(数)
参考例句:
  • His business skill complements her flair for design. 他的经营技巧和她的设计才能相辅相成。
  • The isoseismal maps are valuable complements to the instrumental records. 等震线图是仪器记录有价值的补充资料。
8 derived 6cddb7353e699051a384686b6b3ff1e2     
vi.起源;由来;衍生;导出v.得到( derive的过去式和过去分词 );(从…中)得到获得;源于;(从…中)提取
参考例句:
  • Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
  • He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》
9 isolated bqmzTd     
adj.与世隔绝的
参考例句:
  • His bad behaviour was just an isolated incident. 他的不良行为只是个别事件。
  • Patients with the disease should be isolated. 这种病的患者应予以隔离。
10 schooling AjAzM6     
n.教育;正规学校教育
参考例句:
  • A child's access to schooling varies greatly from area to area.孩子获得学校教育的机会因地区不同而大相径庭。
  • Backward children need a special kind of schooling.天赋差的孩子需要特殊的教育。
11 applied Tz2zXA     
adj.应用的;v.应用,适用
参考例句:
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
12 transcends dfa28a18c43373ca174d5387d99aafdf     
超出或超越(经验、信念、描写能力等)的范围( transcend的第三人称单数 ); 优于或胜过…
参考例句:
  • The chemical dilution technique transcends most of the difficulties. 化学稀释法能克服大部分困难。
  • The genius of Shakespeare transcends that of all other English poets. 莎士比亚的才华胜过所有的其他英国诗人。
13 synthetic zHtzY     
adj.合成的,人工的;综合的;n.人工制品
参考例句:
  • We felt the salesman's synthetic friendliness.我们感觉到那位销售员的虚情假意。
  • It's a synthetic diamond.这是人造钻石。
14 vice NU0zQ     
n.坏事;恶习;[pl.]台钳,老虎钳;adj.副的
参考例句:
  • He guarded himself against vice.他避免染上坏习惯。
  • They are sunk in the depth of vice.他们堕入了罪恶的深渊。
15 assessment vO7yu     
n.评价;评估;对财产的估价,被估定的金额
参考例句:
  • This is a very perceptive assessment of the situation.这是一个对该情况的极富洞察力的评价。
  • What is your assessment of the situation?你对时局的看法如何?
16 proficient Q1EzU     
adj.熟练的,精通的;n.能手,专家
参考例句:
  • She is proficient at swimming.她精通游泳。
  • I think I'm quite proficient in both written and spoken English.我认为我在英语读写方面相当熟练。
17 mediocre 57gza     
adj.平常的,普通的
参考例句:
  • The student tried hard,but his work is mediocre. 该生学习刻苦,但学业平庸。
  • Only lazybones and mediocre persons could hanker after the days of messing together.只有懒汉庸才才会留恋那大锅饭的年代。
TAG标签: students teach science
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