共查询到20条相似文献，搜索用时 78 毫秒
1.
2.
“互动教学”是课堂教学基本的组织形式,是提高课堂效率、达成教学最优化的有效途径之一。教学是教师的教与学生的学的统一,这种统一的实质是交往互动,体现“以人为本”的创新教育教学理念,以学生为中心进行教学,改变单纯接受式的学习,强调发现学习、探究学习、互动学习,提炼升华形成新的理念的教学模式. 相似文献
3.
随着新一轮课程改革的不断深入,以接受式为主的课堂教学方式逐渐被探究式教学方式所取代。探究式教学的主要特征是以问题为主线,启发学生积极思维,并进行自主性学习,能有效地培养学生的思维能力、探究能力和问题解决能力。因此,生物教学应创设能引导学生探究新知的良好的问题情景。 相似文献
4.
新的《数学课程标准》倡导学生应主动地进行观察、实验、猜测、验证、推理和交流等数学活动,传统的讲授式课堂教学,不利于学生开展有效的数学活动,为改变这一状况,《数学课程》标准科学地提出有效的数学教学不能单纯地依赖模仿与记忆,动手实践、自主探索与合作交流是学生学习的重要方式,课堂教学必须是以素质教育为核心创新教育,培养学生的创造力,这就要求教师必须以新的理念组织教学,实现两个转变,一是学生学习方式从接受式向活动式转变,从模仿式向探究性转变,二是教师从课堂单一的数学知识传授者向数学学习活动的组织者,引导者与合作者转变,充分体现人文精神,提高学生的自学能力、探究能力和综合问题的能力。现就数学教学改革谈谈自己的看法。 相似文献
5.
按照新的课程改革理念和素质教育思想，现在大力倡导的是探究性教学、研究式学习，这就要求教师必须做到两个转换、一个创新：一是教学观念的转换，即必须由传承性教学转换为探究性教学，由接受式学习转换为研究式学习；二是教师角色的转换，即教师必须由权威者、传授者转换为与学生平等合作的探究者、学习者；三是教学方法必须有所创新。教师在教学中还应该充分利用人们认识的重演规律（重演知识的形成过程），使课堂教学具有探究性、实践性、主体性，并富有创造性和开放性，充满生机，从而达到比较理想的效果。现以聋校数学思维训练为例阐… 相似文献
6.
新的《数学课程标准》倡导学生应主动地进行观察、实验、猜测、验证、推理和交流等数学活动,传统的讲授式课堂教学,不利于学生开展有效的数学活动,为改变这一状况,《数学课程》标准科学地提出有效的数学教学不能单纯地依赖模仿与记忆,动手实践、自主探索与合作交流是学生学习的重要方式,课堂教学必须是以素质教育为核心创新教育,培养学生的创造力,这就要求教师必须以新的理念组织教学,实现两个转变,一是学生学习方式从接受式向活动式转变,从模仿式向探究性转变,二是教师从课堂单一的数学知识传授者向数学学习活动的组织者,引导者与合作者转变,充分体现人文精神,提高学生的自学能力、探究能力和综合问题的能力.现就数学教学改革谈谈自己的看法.…… 相似文献
7.
＂自主——合作——探究＂模式是一种数学教学的有效方式。将学生接受式的学习方式转变为探究式的学习方式,实现学生的主动发展。本文讨论了在实施＂自主——合作——探究＂数学教学模式中应注意的几点问题,使其进一步地充实与完善。 相似文献
8.
9.
转变学生的学习方式,即将传统的被动接受式学习转变为自主、合作和探究式学习。自主探究学习不仅能让学生掌握知识,更重要的是让学生掌握学习的方法,培养学生终生学习的愿望和能力。本文从自主探究学习的内涵、开展模式及思考展开论述,教师应怎样指导学生进行自主探究学习,才能有效地提高学生的科学素养。 相似文献
10.
11.
A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
12.
《中国科学院院刊(英文版)》2008,22(1):2-3
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. 相似文献
13.
Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
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. 相似文献
14.
《中国科学院院刊(英文版)》2008,22(1)
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." 相似文献
15.
A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US 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 the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
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. 相似文献
16.
Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
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. 相似文献
17.
Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
18.
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. 相似文献
19.
Puay Tang 《The Information Society》1998,14(1):19-31
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. 相似文献
20.
Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献