19.childrens numerical skills
people appear to born to compute. The numerical skills of children develop so early and so inexorably that it is easy to imagine an internal clock of mathematical maturity guiding their growth. Not long after learning to walk and talk, they can set the table with impress accuracy---one knife, one spoon, one fork, for each of the five chairs. Soon they are capable of nothing that they have placed five knives, spoons and forks on the table and, a bit later, that this amounts to fifteen pieces of silverware. Having thus mastered addition, they move on to subtraction. It seems almost reasonable to expect that if a child were secluded on a desert island at birth and retrieved seven years later, he or she could enter a second enter a second-grade mathematics class without any serious problems of intellectual adjustment.
Of course, the truth is not so simple. This century, the work of cognitive psychologists has illuminated the subtle forms of daily learning on which intellectual progress depends. Children were observed as they slowly grasped-----or, as the case might be, bumped into-----concepts that adults take for quantity is unchanged as water pours from a short glass into a tall thin one. Psychologists have since demonstrated that young children, asked to count the pencils in a pile, readily report the number of blue or red pencils, but must be coaxed into finding the total. Such studies have suggested that the rudiments of mathematics are mastered gradually, and with effort. They have also suggested that the very concept of abstract numbers------the idea of a oneness,
a twoness, a threeness that applies to any class of objects and is a prerequisite for doing anything more mathematically demanding than setting a table-----is itself far from innate
上一篇: 2012考研阅读资料经典美文29
下一篇: 2012考研阅读资料经典美文4
研究发现:童年不幸者更富创造力
国内英语资讯:Interview: Belt and Road Initiative features win-win for China, CEE -- expert
国内英语资讯:Economic Watch: Chinas financial opening up attracts global investors
美文赏析:难道真要工作一辈子吗?
体坛英语资讯: Ding Junhui inducted into world snooker Hall of Fame in London
Royal wedding: Who's been invited? 哈里王子大婚:嘉宾名单上都有谁?
为保护珊瑚礁,夏威夷颁布法令禁用防晒霜
前马来西亚总理辞去政党领导人职务
为什么你存不下钱
Writing A Letter 写信
体坛英语资讯: Marseille lose upper hand in Champions League ticket contention
美国男孩在被宣布脑死亡后竟苏醒
2018年6月英语四级作文范文:人工智能
国内英语资讯: Chinas top legislator meets AU Commission deputy chair, eyeing closer China-Africa coopera
国内英语资讯:Myanmar-China Friendship Association eyes enhanced Myanmar-China ties
国内英语资讯:UNFPA to continue work with China on population, development: UN official
国内英语资讯:China Focus: Chinese moms embrace a smarter life this Mothers Day
如何才能改变现状
The congestion caused by ride-hailing 叫车软件造成的交通拥堵难题
广州公立医院6岁以下儿童看病涨价三成
即使是少量运动,也能带来幸福感
研究显示 肥胖能让味觉变得迟钝
国内英语资讯:Chinese state councilor, Iranian foreign minister hold talks
论猫奴的自我修养:正确吸猫指南,教你博得主子欢心
研究发现:童年不幸者更富创造力
体坛英语资讯:Kenyan champions Gor believe they can beat visiting English side Hull City
赛琳娜新歌MV发布,说的就是比伯!
Be-all and end-all?
高空玻璃破碎! 川航完成“史诗级”备降 网友怒赞
体坛英语资讯:Paraguays Dominguez re-elected as CONMEBOL president