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随着大学数学的教学改革,阐述了以数学建模为平台如何促进大学数学的教学,针对非数学专业与数学专业,从数学建模看如何促进他们的数学学习。通过数学建模来提高学生的综合素质、增强创新意识、培养学生应用数学知识解决实际问题的能力,激发学生学习数学的积极性。 相似文献
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中学数学建模是在教师的引导下,学生遵循数学建模的典型环节,综合运用数学知识、自主研究解决实际问题的实践活动。本文以家用汽车的经济时速问题为例,对初中数学函数建模活动进行了教学设计。 相似文献
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新课程已走进中学数学教学,作为中学数学教师,如何正确理解新课程理念,树立正确中学数学教学观,开展中学数学教学及评价成为目前首要思考与解决的问题.本文针对现实数学教学的实际状况与新课程理念的冲突,明确作为数学教师应该建立起的新的教学理念,展开具体教学实践策略的分析,特别强调了对数学教学应树立正确的评价理念与采取的态度方法.由此进行对新课程理念下中学数学教学的思考与策略、评价分析,以求与同行的商榷. 相似文献
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在新的中学数学教学目标中,非常重视对学生的数学思想方法和能力的培养。而熟悉数学化归思想,有意识地运用数学变换的方法去灵活解决有关的数学问题,将有利于强化在解决数学问题中的应变能力,有利于提高解决数学问题的思维能力和技能、技巧。 相似文献
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着重探讨高职数学在教学实践过程中,为了培养学生的创新能力,对教学内容进行调整和精选,采用模块教学;改革教学方法和教学手段,增强学生数学意识;将数学建模融入到整个高等数学教学课程中,培养学生创新能力,提高学生解决实际经济问题的能力。 相似文献
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数学教育的一个重要任务就是培养学生的数学思维能力。努力提高学生的数学思维能力。不仅是数学教育进行“再教育”的需要,更重要的是培养能思考,会运筹善于随机应变。适应信息时代发展的合格公民的需要。本文从数学思维的特征,品质出发。结合中学数学教育的实际。探讨了中学数学教育如何有效地培养学生数学思维能力的问题。 相似文献
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数学思想方法是数学知识的精髓,是数学教学的灵魂。本文通过揭示中学数学思想方法的内涵和作用,提出了数学思想方法教学的主要途径：在数学教材处理中挖掘数学思想方法、在数学概念教学中让学生体验数学思想方法、在数学原理教学中揭示数学思想方法、在数学问题解决教学中让学生领悟数学思想方法、在数学知识结构归纳和整理教学中提炼数学思想方法。 相似文献
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中学数学教学的目的,归根结底在于培养学生的解题能力,提高数学解题能力是数学教学中一项十分重要的任务。提高学生解题能力始终贯穿于教学始终,我们必须把它放在十分重要的位置。教学关键是教会学生用所学的知识解决实际问题,即要提高学生的解题能力。文章从培养学生“数形”整合、“方程”思维、“对应”思维、“转化”能力、增强自信等五个方面谈如何培养学生的数学解题能力。那么,如何才能提高学生的解题能力,具体方法上讲主要可以从以下几方面入手： 相似文献
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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
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《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
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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
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《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
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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
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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
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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
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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
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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
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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