国产av不卡一区二区_欧美xxxx做受欧美_成年人看的毛片_亚洲第一天堂在线观看_亚洲午夜精品久久久中文影院av_8x8ⅹ国产精品一区二区二区_久久精品国产sm调教网站演员_亚洲av综合色区无码一二三区_成人免费激情视频_国产九九九视频

US EUROPE AFRICA ASIA 中文

The testing struggles of American teens

( Agencies ) Updated: 2016-12-17 10:22:30

The testing struggles of American teens

Katerina Maylock, with Capital Educators, teaches a college test preparation class at Holton Arms School in Bethesda. [Photo provided to China Daily]

American students have a math problem.

The latest global snapshot of student performance shows declining math scores in the US and stagnant performance in science and reading.

"We're losing ground-a troubling prospect when, in today's knowledge-based economy, the best jobs can go anywhere in the world," says US Education Secretary John B. King Jr. "Students in Massachusetts, Maryland, and Minnesota aren't just vying for great jobs along with their neighbors or across state lines, they must be competitive with peers in Finland, Germany, and Japan."

Math was a stubborn concern. "This pattern that we're seeing in mathematics seems to be consistent with what we've seen in previous assessments ... everything is just going down," says Peggy Carr, acting commissioner at the US National Center for Education Statistics.

The 2015 Program for International Student Assessment, or PISA, study is the latest to document that American students are underperforming their peers in several Asian nations. The US was below the international average in math and about average in science and reading. Singapore was the top performer in all three subjects on the PISA test.

More than half a million 15-year-old students in about 70 nations and educational systems took part in the 2015 exam. The test is coordinated by the Paris-based Organization for Economic Cooperation and Development, or OECD.

Here are the main things to know about the PISA exams:

US scores and rankings

Not so encouraging.

The test is based on a 1,000-point scale. Among the findings:

In math, the US average score was 470, below the international average of 490. Average scores ranged from 564 in Singapore to 328 in the Dominican Republic.

In science, the US average score was 496, about the same as the international average of 493. Average scores ranged from 556 in Singapore to 332 in the Dominican Republic.

In reading, the US average score was 497, around the same as the international average of 493. Average scores ranged from 535 in Singapore to 347 in Lebanon.

Average scores in math have been on the decline since 2009, and scores in reading and science have been flat during that same time period.

Across the globe, American students were outperformed by their counterparts in 36 countries in math; 18 countries in science and 14 countries in reading.

So, what is going on with math?

Andreas Schleicher, director of education and skills at OECD, says high-performing countries do really well in math in three things: rigor, focus, and coherence.

For example, he says, many high-performing countries will teach a lot less but focus at much greater depths, particularly when you look at East Asia, Japan and Singapore.

"Students are often good at answering the first layer of a problem in the United States," says Schleicher. "But as soon as students have to go deeper and answer the more complex part of a problem, they have difficulties."

What people are saying about how the US stacks up

"The latest US PISA achievement results are disappointing but not surprising," said Randi Weingarten, president of the American Federation of Teachers. "They were predictable given the impact of the last 15 years of US education policies combined with continuing state disinvestment following the 2008 recession. Thirty-one states still spend less per pupil than before the recession."

"This stagnant performance on PISA by US students in the last four years once again affirms our belief that the US would be well served to take a hard look at the strategies used by the top-performing education systems and adapt lessons learned from them to fit the US context and needs," says Marc Tucker, president of the National Center on Education and the Economy. "It is critical to look not only at their average high performance, but also at the strategies they use to achieve much greater equity across and within schools compared to the United States."

Other findings

Globally, gender differences in science tended to be smaller than in reading and math. But, on average, in 33 countries and economies, the share of top performers in science is larger among boys than among girls. Finland was the only country where girls were more likely to be top performers than boys.

Across OECD countries, on average, the gender gap in reading in favor of girls narrowed by 12 points between 2009 and 2015.

Massachusetts, North Carolina, and Puerto Rico participated as international benchmarking systems and received separate scores from the United States. Massachusetts's average scores were higher than the US and the international average scores in science, math and reading. North Carolina's average scores were not statistically different from the U.S. average scores for all three subjects. And Puerto Rico's average scores were lower than both the average US scores and the international average scores for all three subjects.

About the test and comparisons

The PISA test is conducted every three years. Schools in each country are randomly selected, and OECD says the selection of schools and students is kept as inclusive as possible so that student samples are drawn from a broad range of backgrounds and abilities.

Another international test, known as the Trends in International Mathematics and Science Study, or TIMSS, had similar international comparisons with Asian countries solidly outperforming American students. That test, though, administered every four years to a random sampling of younger students in dozens of countries, had eighth graders in the US improving their scores in math, up nine points. Scores for science, however, were flat. In fourth grade, scores were unchanged in math and science.

Editor's Picks
Hot words

Most Popular
...
粉嫩久久99精品久久久久久夜| 欧美激情一区二区三区成人| 亚洲黄色在线观看| 91精品国产色综合久久不卡电影 | 福利视频网址| 91久久精品| 色九视频91| 国产亚洲精品午夜高清影院 | 91亚洲一区| 成人av国产| 成人3d动漫在线观看| 精品国产乱码久久久久久蜜坠欲下| 欧美午夜18电影| 欧美wwwsss9999| 久久久久高潮毛片免费全部播放| 97se亚洲| 欧美激情极品| 日韩精品一区二区三区在线播放| 国产精品午夜免费| 中文字幕一区二区三区久久网站 | 久久中文字幕国产| 国产不卡视频一区| 另类综合日韩欧美亚洲| 日韩不卡一二三区| 蜜桃视频免费观看一区| 久久狠狠亚洲综合| 国产又黄又大久久| 东方欧美亚洲色图在线| 波多野结衣91| 国产亚洲人成网站| 中文字幕免费观看一区| 国产精品国产三级国产专播品爱网| 久久久国产精华| 中文字幕电影一区| 国产精品超碰97尤物18| 亚洲日本丝袜连裤袜办公室| 一级做a爱片久久| 亚洲国产wwwccc36天堂| 色偷偷一区二区三区| 欧美天天综合网| 综合电影一区二区三区| 国产精品剧情在线亚洲| 亚洲激情欧美激情| 岛国视频午夜一区免费在线观看| 岛国精品视频在线播放| 欧美日韩视频专区在线播放| 日韩欧美不卡在线观看视频| 日韩国产中文字幕| 精品国内自产拍在线观看| 久久久久久久一区二区| 天堂在线www天堂中文在线| 欧美性xxxx极品hd欧美| 女生裸体无遮挡天堂网站免费| 夜夜骑天天干| 久艹在线视频| 中文字幕日本在线| 91av久久| 亚洲三级电影| 国产精品欧美在线观看| 一本一道久久a久久精品蜜桃 | 婷婷开心激情综合| 欧美日韩在线综合| 亚洲精品www久久久| 最近中文字幕mv在线一区二区三区四区| 欧美成人午夜激情视频| 国产啊啊啊视频在线观看| h片在线观看视频免费| 欧美aaa视频| 国产精品17p| 日韩欧美国产精品综合嫩v| 色777狠狠狠综合伊人| 91伊人久久| 成人午夜大片| 国产精品99久久精品| 国产麻豆一区二区三区精品| 亚洲精品第一页| www.精品av.com| 欧美一级电影久久| 永久www成人看片| 特黄aaaaaaaaa毛片免费视频| 外国精品视频在线观看| 亚洲色图校园春色| 夜色激情一区二区| 欧美伊人久久久久久午夜久久久久| 欧美一级高清片在线观看| 国产午夜精品视频| 亚洲一区二区三区免费在线观看| 卡一精品卡二卡三网站乱码| 成人久久久久| 免费亚洲婷婷| 成人精品免费视频| 亚洲蜜臀av乱码久久精品蜜桃| 色天天综合久久久久综合片| 日本欧美大码aⅴ在线播放| 国内精品免费在线观看| 中文字幕乱码久久午夜不卡| 欧美日韩在线一区| 亚洲国产成人精品久久| 欧美多人乱p欧美4p久久| 国产又爽又黄又刺激的软件| 国产精品久久久久久精| 在线免费黄色| 久草综合在线| 99re66热这里只有精品8| 日韩av在线发布| 久久精品视频网| 色诱视频网站一区| 亚洲免费精彩视频| 男女毛片免费视频看| 一插菊花综合| 麻豆视频在线免费观看| 亚洲日本免费电影| 欧美激情综合| 成人av电影在线| 精品国产乱码久久久久久虫虫漫画| 精品精品欲导航| 91国产中文字幕| 天天操夜夜操免费视频| 在线观看免费黄视频| 日韩欧乱色一区二区三区在线 | 日本电影在线观看网站| www一区二区三区| 欧美福利专区| 99久久婷婷国产精品综合| 粉嫩老牛aⅴ一区二区三区| 亚洲男女性事视频| 九色国产蝌蚪| 日韩av视屏| 黄色成人在线视频| 最新精品国产| xf在线a精品一区二区视频网站| 欧美视频中文字幕在线| 一个人看的www久久| 国产成人精品综合网站| 国产九色在线| 日韩08精品| 亚洲一区自拍| 日韩毛片高清在线播放| 欧美哺乳videos| 免费视频中文字幕 | 国产精品 欧美精品| 亚洲成a人在线观看| 亚洲欧美日韩精品久久| 国产美女在线一区二区三区| 国产日本在线视频| 日韩在线免费av| 久久久久88色偷偷| 天天射综合网站| 成人在线黄色| 伊人激情综合| 日本一区二区动态图| 91精品一区二区三区久久久久久 | 麻豆免费在线| 日韩精品久久久久久久电影99爱| 国产精品一级片| 岛国av在线不卡| 蜜月aⅴ免费一区二区三区| 麻豆美女网站| 成年女人在线看片| 久久精品免费一区二区三区| 97se亚洲国产综合在线| 9191国产精品| 波多野结衣久久高清免费| 性xxxx丰满孕妇xxxx另类| 欧美一区二区三区婷婷| 中文在线不卡| 尤物av一区二区| 在线a欧美视频| 奇米影视第四狠狠777| 99热99re6国产在线播放| 9999国产精品| 国产精品天美传媒| 亚洲精品少妇网址| 两个人看的无遮挡免费视频| 日本性爱视频在线观看| 午夜精品一区二区三区国产| 91玉足脚交白嫩脚丫在线播放| 91麻豆精品91久久久久同性| 亚洲国产精品久久卡一| a黄色在线观看| 伊甸园亚洲一区| 懂色av一区二区三区免费观看| 欧美欧美欧美欧美首页| 综合久久一本| 久久亚洲天堂| 91日韩欧美| 中文av一区二区| 亚洲精品一区中文| av小次郎收藏| 国产综合av| 石原莉奈在线亚洲三区| 午夜精品一区二区三区电影天堂| 欧美刺激性大交免费视频| 影音先锋在线影院| 日本免费精品| 国产不卡在线视频| 欧美大黄免费观看| 人人插人人干| 欧美电影网址| 久久中文欧美| 日本精品视频一区二区| 中文字幕人成高视频| 欧美天天影院| 国产精品毛片一区二区在线看| 欧美国产日韩亚洲一区| 中文字幕亚洲一区| 国产主播福利| 成人免费在线电影网| 不卡一区在线观看| 亚洲国内精品视频| 狠狠网亚洲精品| 欧美三级一区二区| 另类欧美视频| 国产美女高潮在线观看| 亚洲成人资源| 欧美性猛xxx| 亚州欧美精品suv| gogo高清在线播放免费| 国产欧美日本| 欧美性生活影院| 国产香蕉免费精品视频| 97人人爽人人澡人人精品| 亚洲麻豆一区| 在线亚洲一区观看| 蜜桃视频一日韩欧美专区| 97人人在线视频| 亚洲免费综合| 欧美美女网站色| 香蕉青柠影院| 黄色成人小视频| 国产成人免费视频一区| 亚洲国产成人精品久久久国产成人一区 | 澳门精品久久国产| 99国产精品久久久久| 国产一区二区免费| 污黄网站在线观看| 99re6这里只有精品| 性做久久久久久免费观看| 男人天堂99| 91在线三级| 蜜桃视频在线一区| 亚洲成人久久电影| jizz欧美大全| 亚洲人成网站在线播| 久久色精品视频| 精品亚洲综合| 91tv官网精品成人亚洲| 亚洲成人7777| 国产亚洲精品午夜高清影院| 日韩欧美一区二区三区免费观看| 国产一区美女在线| 亚洲黄色成人网| 精东影业在线观看| 黑人与亚洲人色ⅹvideos| 久久久人成影片免费观看| 婷婷久久综合九色综合绿巨人| 欧美成人亚洲高清在线观看| 成人私拍视频| 国产精品99久久久久久久vr| 亚洲精品中文字幕有码专区| 在线成人一区| 欧美一区亚洲| 欧美性高清videossexo| 成年女人免费又黄又爽视频| 99香蕉久久| 综合分类小说区另类春色亚洲小说欧美 | 中文字幕精品www乱入免费视频| 免费人成在线观看网站| 国产一区二区中文| 亚洲国产高清一区| 美美哒免费高清在线观看视频一区二区 | 国产在线观看一区二区| 亚洲日韩中文字幕在线播放| 好男人免费精品视频| 最新国产拍偷乱拍精品| 日韩欧美一二三| 久草在线看片| 你懂的亚洲视频| 欧美高清一级片在线| wwwcom羞羞网站| 色135综合网| 在线看国产日韩| 完整版免费av片| 欧美色婷婷久久99精品红桃| 欧美日韩免费在线观看| 狠狠插狠狠操| 蜜桃成人av| 欧美午夜丰满在线18影院| xxxxwwww在线免费观看| 美女久久久久| 色婷婷综合久久久中文一区二区| 天天草天天爽| 欧美一区二区麻豆红桃视频| 色av成人天堂桃色av| 免费av福利| 日韩免费视频| 91.com视频| 一级片在线视频| 国产精品综合| 亚洲女人初尝黑人巨大| 91在线不卡| 精品一区二区三区蜜桃| www.欧美精品| 成人国产电影在线观看| 99在线热播精品免费| 欧美一级高清免费播放| 国产成人精品一区二区三区视频| 国产精品久久久久久久久久久免费看 | 怡红院怡春院首页| 在线中文字幕av| 亚洲国产高清一区| 亚洲国产高清福利视频| 国产在线观看网站| 日韩高清欧美激情| 在线精品播放av| 国语对白在线刺激| 99热精品一区二区| 影音先锋中文字幕在线| 偷拍中文亚洲欧美动漫| av永久不卡| 欧美色精品在线视频| 欧美精品一区二区三区蜜桃 | 日韩精品中文字幕一区| 美丽的姑娘在线观看免费动漫| 久久亚洲视频| 日韩中文字幕av| 久久99高清| 国产综合久久| 亚洲国产精品久久久久秋霞不卡| 男女av在线| 青椒成人免费视频| 久久成人综合视频| 成人h在线观看| 亚洲精品国产无天堂网2021| 美女高潮网站| 66视频精品| 亚洲国产精久久久久久 | 欧美韩日高清| 99欧美精品| 成人av在线观| 欧美性xxxx交| 自拍亚洲一区| 91麻豆精品国产91久久久资源速度 | 国产精品xxx| 亚洲综合999| 快色在线观看| 久久五月激情| 色综合老司机第九色激情| a一区二区三区亚洲| 精品毛片三在线观看| 粗大的内捧猛烈进出在线视频| 久久精品国产清高在天天线| 欧美成人精品激情在线观看| 国产成人精品一区二区三区在线 | 天堂在线视频| 久久精品99国产国产精| 国产69久久精品成人看| av日韩在线播放| 欧美日本乱大交xxxxx| h视频网站在线观看| 成人av电影免费观看| 国产情侣高潮对白| 日本午夜一区| 亚洲男人的天堂网站| 欧美亚洲韩国| 精品福利在线看| 亚洲精品男人| 成人午夜视频网站| 69堂视频在线观看国产| 91精品啪在线观看国产18| 国产一区二区黑人欧美xxxx| 日韩欧美精品电影| 欧美日韩美女在线观看| 青青草免费观看免费视频在线| 成人午夜视频网站| 一个人免费观看在线视频www| 午夜日韩福利| 麻豆国产va免费精品高清在线| 国产欧美视频在线| 欧美巨大另类极品videosbest| 亚洲天天影视| 欧美激情在线一区二区| 天天av天天爱| 麻豆精品在线看| 亚洲国产成人私人影院| 91精品久久久久久久久久不卡| 在线中文字幕日韩| 99热这里有精品| 欧美乱熟臀69xxxxxx| 日韩欧美精品在线观看| 午夜免费啪视频观看视频| 久久se这里有精品| 久久7799| 中文字幕免费精品| 久久综合免费视频| 欧美电影完整版在线观看| 9l亚洲国产成人精品一区二三| 欧美三级中文字| av电影高清在线观看| 亚洲色大成网站www久久九九|