新课标下初中生物探究式教学应用的研究

为了适应社会对新型人才的需求,上至国家教育部,下至每一个任课老师,都在努力研究探究式教学这种教学方式,使学生由原来的接收式的学习改变为主动式的学习。探究式生物教学也就是:合理利用学校的教学资源,以探究式教学为核心,其他教学方式灵活运用的教学过程。作为一名合格的初中生物教师,更应该积极研究探究式教学在学习中的应用,为学生在学习中,更好的学习和掌握相关知识,从而提高学生的综合能力。本文主要阐述了在生物教学中,如何通过探究式教学使学生提高创新能力和实践能力。     

小议会计专业课的探究式学习

在会计专业课教学中,教师要转变传统的教育观念,鼓励学生进行探究式学习,培养学生的独立性、创造性和能动性,提高学生的自主学习能力和教学效率。实践证明,这种方法不失为一种有效的教学方法。     

探究性学习在健美操教学中的运用研究

"探究式学习法"在健美操教学中的实施符合当前教育突出以学生为主体教师为主导的教学要求。在健美操教学中实施"探究式学习法"对于提高教学质量、提高学生对健美操学习的积极性和主动性等各方面具有积极的影响和重要作用。     

初中化学课堂教学有效性初探

面对初中学生名目繁多的学习资料,寻求有效教学,提高教学质量是每个中学教师教学活动的根本目标,传统的教学观、学生观、教师角色和教学行为是影响教学有效性的主要原因。而学生学习兴趣的培养,教师的教学设计,教师角色和教学行为的转变等是提高课堂教学有效性的主要途径,通过发现探究式、自主交往式、过程活动式开展有效教学,可以大大提高课堂教学效率。     

高中生物讨论式教学中存在的误区及思考

新课程教学中倡导学生自主、合作和探究式学习。对课堂教学方法来说,讨论式教学较之传统的教学方法更能激发学生主动学习的积极性,提高学生的合作能力和生物课堂的教学效率。但在实际的教学中由于有些教师对课堂讨论式教学理解的偏差或操作不当等原因,使课堂讨论走入了一些误区。     

问题探究,引导点拨,构建历史有效课堂

新课程改革理念倡导以学生为本,激发学生主动学习历史,积极参与课堂教学过程,树立以学生为主体的教学观念;鼓励教师改进教学方法,提高教学效率,构建有效课堂。问题探究式教学就是教师利用问题来引领课堂,引导学生思考,让学生自己去发现问题、解决问题,从而自主构建知识体系的一种教学方法。在这个过程中,教师应适当地加以引导和点拨,     

如何在中学政治教学中运用探究式教学

随着新课程教育的实施与改革,在中学政治教学活动中,传统的教学方法已经无法满足社会对其提出的新要求,因此,探究式教学法应运而生。探究式教学是指根据教学的基本内容与根本目标,营造良好的学习氛围,发挥教师的引导作用,组织学生进行教学问题的探究活动,通过此种创新的教学方法,更进一步掌握政治知识。探究式教学不仅可以培养学生们的创新力及实践能力,而且有利于政治课堂学习效率的提高。     

中学语文课堂的小组活动教学策略探究

课改背景下,"以学生为核心"已成为教师教学的重要目标,如何展开尊重学生、促进学生个性发展的教学工作已深入教育工作者的教学思考之中。探究式教学为教师提高自身教学成效提供了借鉴,学生以小组形式进行语文学习已成为一线教学的趋势。本文对中学生的语文学习特点进行了探讨,并对利用学习小组展开教学工作、提高教学成效的策略进行了分析,以期能够为各中学语文教师所参考。     

“学案探究式”教学模式在高中数学教学中的应用

随着2001年我国开始新课程改革,如何构建以学生为教学主体的教学模式成为新课改后众多专家、学者和一线教师热点研究的新课题。围绕这一问题,本研究以自己的教学实践为依据,在吸取前人优秀研究成果的基础上,依据布鲁纳的认知发现学习理论、弗赖登塔尔的再创造教学理论、维果茨基最近发展区理论,构建了"学案探究式"教学模式。实践表明"学案探究式"教学模式促进了教师综合素质的提高,促进了学生学习方式的转变,提高了学生的数学思维品质。     

探究式教学法在初中英语教学中的运用

探究式教学法是指通过阅读、思考、讨论等方式进行独立探究,使学生自主掌握学习方法和相关知识的教学活动。尤其对于初中生而言,探究式教学能够激发学生的学习兴趣,培养学生自主学习的能力,有效提高初中英语的教学效率。     

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.     

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.     

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.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence     

Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels

<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese