三级aa视频在线观看-三级国产-三级国产精品一区二区-三级国产三级在线-三级国产在线

您現在的位置: > Language Tips > Audio & Video > Special Speed News  
 





 
'Iron science teacher' and more at the Exploratorium
[ 2006-07-28 09:47 ]

This is the VOA Special English Education Report.


The Exploratorium in San Francisco, California, calls itself "the museum of science, art and human perception." The museum gets more than five hundred thousand visitors each year. Millions more visit online at exploratorium.edu.

Exploratorium officials say their Web site averages more than eighteen million visitors a year. That makes it one of the most visited museum Web sites in the world.

And millions of people see displays designed by the Exploratorium at science centers around the world.

The museum has a Teacher Institute and is working to help teachers improve science education at all grade levels. There are professional development materials that teachers can download from the Web site at no cost.

The Exploratorium also offers professional development programs for scientists. This is a joint effort with the University of California, Santa Cruz, and King’s College London.

Exploratorium.edu also includes experiments that people can do at home. And it offers many Webcasts -- including a show called "Iron Science Teacher."

The idea came from the popular "Iron Chef" cooking competition on Japanese television. At the Exploratorium, people watch science teachers develop demonstrations around everyday objects. The teachers have ten minutes to put together an interesting classroom activity.

The teachers come to the competition already knowing what the object will be. Recently it was fruit. Winners are chosen by the reaction of the audience. The loudest applause went to a science teacher at Opportunity Charter School in Harlem, in New York City. Linda Paparella stuck pieces of zinc and copper into oranges cut in half.

The oranges acted as a "fruit battery." Free electrons naturally stored in the fruit flowed through wires connected to the pieces of metal. There was enough electricity to power a calculator. The teacher also demonstrated with a stopwatch and a buzzer.

Museum officials say the "Iron Science Teacher" competition started as a joke. It was meant to be just a one-time show, but it was so popular they continued it. The next live Webcast is set for nineteen hours Universal Time on August eleventh.

And that's the VOA Special English Education Report, written by Nancy Steinbach. Transcripts and archives of our reports are at voaspecialenglish.com. You can also find a link to archives of Iron Science Teacher Webcasts. I’m Steve Ember.

the Exploratorium :探險博物館

stopwatch :秒表

(來源:VOA   英語點津姍姍編輯)

 
 

 

 

 
 

48小時內最熱門

     

本頻道最新推薦

     
  Michael Bolton: Soul to swing
  A one-pill answer to treating H.I.V.
  Rains help ease crop worries in U.S. corn belt
  Google profits soar in 2nd quarter
  清涼海風:Talk of the town






主站蜘蛛池模板: 欧美激情人成日本在线视频 | 国产免费看视频 | 日韩精品久久久久久久电影99爱 | 国产成人精品亚洲77美色 | 国产日韩欧美一区二区三区视频 | 午夜激情视频在线观看 | 1024毛片| 亚洲日本va在线观看 | 国产欧美在线观看视频 | 热伊人99re久久精品最新地 | 国产成人在线观看网站 | 国产精品酒店 | 欧美激情片网站 | 亚洲国产欧美日韩精品一区二区三区 | 性视屏| 激情一区二区三区成人 | 亚洲一区精品在线 | 一区二区三区欧美视频 | 国产精品一区二区av | 亚洲国产一区二区三区 | 久久精品a亚洲国产v高清不卡 | 国内精品久久久久久西瓜色吧 | 高清一级做a爱免费视 | 亚洲 欧美 日韩 在线 香蕉 | 亚洲免费黄色网 | 中文字幕 亚洲一区 | 免费a级毛片大学生免费观看 | 一级黄色绿像片 | 成人免费无毒在线观看网站 | 鲁一鲁中文字幕久久 | 看黄色一级片子 | 求毛片| 国产精品福利一区二区 | 免费观看一级成人毛片 | 国产免费区 | www.香蕉视频在线观看 | aaa免费视频 | 国产激烈无遮挡免费床戏视频 | 国产精品爱久久久久久久9999 | 骚色网站| 欧美成人a级在线视频 |