因为生活,所以精彩

在数学教学中,从学生的生活经验和已有的知识背景出发,联系生活讲数学,把生活经验数学化,数学问题生活化,体现"数学源于生活,寓于生活,用于生活"的思想。以此来激发学生学习数学的兴趣,从而对数学产生亲切感,增强学生对数学知识的应用意识,培养学生解决问题的能力。     

在生活中寻找数学——探析小学数学生活化教学策略

《数学新课程标准》中明确提到:"数学教学是数学活动的教学,数学教学要和学生的生活实际紧密联系在一起,立足于已有的生活经验,让学生和数学过程相亲近;要重视立足于学生的实践经验和已有知识学习和理解数学。"所以,小学数学教师在教学中应和学生的生活实际相联系,把生活资源充分挖掘出来,积极探析生活中的相关信息,按照数学从生活中来而又服务于生活的新理念,把经验数学化、数学问题生活化,为学生提供更多的机会,让其从周围熟悉的事物中学习和探究数学。     

在新课程理念下数学课如何实施创新教学

创新是进步的推动力,是事物发展的必经过程。数学教学的创新重点在于把枯燥乏味的公式、定理、计算与生活相联系,把抽象的数学转化为具体的事物或现象,加强学生对数学在生活中应用的理解,从而提高学生学习数学的能力,激发学生学习数学的兴趣。数学教学的重点也要转向注重培养学生的创新思维、创新理念与创新精神,让学生把学习数学当成一个不断探索、求知、实践的过程。     

数学与生活的亲密接触

数学教学要密切联系学生的生活实际,从学生的生活经验出发,同样的也应该充分利用学生已有的生活经验,引导学生把数学知识应用到现实中去,以体会数学在生活中的价值,实现真正的数学与生活的亲密接触.     

让生活走“近”数学 让数学走“进”生活——“生活即教育”思想在数学教学中的应用

我们在数学教学中要千方百计地让学生从生活中体验数学,让学生自觉地把数学知识运用到各种具体的生活情境中,把培养学生在生活中应用数学的意识贯穿教学的始终,使学生在"生活"和"数学"的交替互动中更加热爱数学、热爱生活。     

还原初中数学教材的生活本色

数学教学中要联系实际生活,把抽象的冰冷的数学还原回来,让数学课有声有色。对于数学教材我们更要把它"生活化""情境化",使学生真正理解和体会到课堂所学到的知识都是有用的,体会到生活中处处有数学,用数学也能解决生活当中的问题。对于培养学生的应用意识要注意:教学中重视介绍数学知识的来龙去脉,学会运用数学语言描述周围世界出现的数学现象,面对实际问题时鼓励学生能主动尝试着从数学的角度运用所学知识和方法寻求解决问题的策略。     

数学与生活的亲密接触

数学教学要密切联系学生的生活实际，从学生的生活经验出发，同样的也应该充分利用学生已有的生活经验，引导学生把数学知识应用到现实中去，以体会数学在生活中的价值，实现真正的数学与生活的亲密接触。     

数学生活化教学之我见

数学教学应重视学生的生活体验,把数学教学与学生的生活体验相联系,把数学问题与生活情境相结合,感受生活数学,探究生活问题,真正让数学生活化,培养学生思维能力。     

在生活中体验数学

在实际生活中运用所学数学知识处理实际问题是小学生的数学素养之一。新课程标准强调数学教学要"从学生已有的生活经验出发","使学生获得对数学知识的理解"。数学教学要加强数学学习和现实之间的联系,教学中教师要充分贯彻联系生活和数学应用的思想。     

小学数学生活化教学探索与实践

在“生活化”小学数学教学中,教师通过创设和模拟生活情景,把数学知识和问题还原到生活原型、活动情景中,体现数学问题生活化;积累生活中有利于学生探索数学问题的材料。把数学问题实际化。促使学生从数学的角度研究和解决问题,使生活问题数学化;把生活中学生熟悉的现象与数学知识的实质和数学规律联系起来,增加用数学解决生活问题的数学方法和数学思想,使学生在研究现实问题的基础上学习数学,理解数学。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

To serve and promote science development via innovation

CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

Tracing the origin and early radiation of birds——Paleornithologist ZHOU Zhonghe

With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants."     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Our Own Devices: Heterotopic Communication, Discourse, and Culture in the Information Society 1

The main premise of this article is that in information societies generally, and in virtual social contexts particularly, a distinctive style of interaction to facilitate the communication of difference, heterotopic communication , has emerged. It rests on two cultural foundations: an ideological belief in the positive, socially integrating power of communication, and a prevailing ethic of instrumental rationality, subjective individualism, and strategically practiced self-interest. The former is demonstrated by the use of simulation and spectacle as sources of information; exhibitionism/voyeurism as a communicative style; and the awareness of surveillance. The latter is seen in the competitive use of knowledge as a commodity; a surface globalism masking deep parochialism; lateral as well as vertical information inequity; and the use of public versus private as strategies for engagement rather than as spaces. Those who engage in heterotopic communication resort to their 'own devices' both in the sense of personal agendas, strategies, interests, and interpretations, and in the form of the telecommunication tools that help realize them. These personal and technological devices allow individuals with the right educational and technical resources to avoid exposure to disagreement, difference, or other information that does not serve their direct purposes or reflect their particular views of the world; yet they also help convey the appearance of openness, availability, and cooperation. This style of interaction is used strategically in combination with information and communication technologies to gain social or economic advantages, but it may encourage social separatism and parochialism, inhibit the negotiation of disputes, and emphasize competing interests.