Wolstenholme定理的进一步推广     

谭宜家 《黄冈师范学院学报》1992,(3)

本文在文[2]的基础上将Wolstenhome定理作了进一步的推广  相似文献   

James Clerk Maxwell and his equations     

B?N?DwivediEmail author 《Resonance》2003,8(5):4-16

  相似文献   

谈高校动态电子学籍档案的建立   总被引：1，自引：0，他引：1  

谭明芳 《南宁师范高等专科学校学报》2006,23(2):117-119

本文系统阐述建立动态电子学籍档案能提高学籍档案的管理效率、检索速度和查准率,充分发挥学籍档案的信息功能,学籍档案数字化是档案信息上网的基础,建立动态电子学籍档案是建设数字化档案馆的一种探索,对其他各门类档案的数字化也具有一定的借鉴作用。  相似文献   

Field-study science classrooms as positive and enjoyable learning environments     

Julien?M.?Zaragoza  Barry?J.?FraserEmail author 《Learning Environments Research》2017,20(1):1-20

We investigated differences between field-study classrooms and traditional science classrooms in terms of the learning environment and students’ attitudes to science, as well as the differential effectiveness of field-study classrooms for students differing in sex and English proficiency. A modified version of selected scales from the What Is Happening In this Class? questionnaire was used to assess the learning environment, whereas students’ attitudes were assessed with a shortened version of a scale from the Test of Science Related Attitudes. A sample of 765 grade 5 students from 17 schools responded to the learning environment and attitude scales in terms of both their traditional science classrooms and classrooms at a field-study centre in Florida. Large effect sizes supported the effectiveness of the field-studies classroom in terms of both the learning environment and student attitudes. Relative to the home school science class, the field-study class was considerably more effective for students with limited English proficiency than for native English speakers.  相似文献   

Should Science be Taught in Early Childhood?     

Haim?EshachEmail author  Michael?N.?Fried 《Journal of Science Education and Technology》2005,14(3):315-336

This essay considers the question of why we should teach science to K-2. After initial consideration of two traditional reasons for studying science, six assertions supporting the idea that even small children should be exposed to science are given. These are, in order: (1) Children naturally enjoy observing and thinking about nature. (2) Exposing students to science develops positive attitudes towards science. (3) Early exposure to scientific phenomena leads to better understanding of the scientific concepts studied later in a formal way. (4) The use of scientifically informed language at an early age influences the eventual development of scientific concepts. (5) Children can understand scientific concepts and reason scientifically. (6) Science is an efficient means for developing scientific thinking. Concrete illustrations of some of the ideas discussed in this essay, particularly, how language and prior knowledge may influence the development of scientific concepts, are then provided. The essay concludes by emphasizing that there is a window of opportunity that educators should exploit by presenting science as part of the curriculum in both kindergarten and the first years of primary school.  相似文献   

ADAPT<Superscript>IT</Superscript>: Tools for training design and evaluation     

Marcel?B.?M.?de?CroockEmail author  Fred?Paas  Henrik?Schlandbusch  Jeroen?J.?G.?van?Merri?nboer 《Educational technology research and development : ETR & D》2002,50(4):47-58

This article describes a set of computerized tools that support the design and evaluation of competency-based training programs. The training of complex skills such as air traffic control and process control requires a competency-based approach that focuses on the integration and coordination of constituent skills and transfer of learning. At the heart of the training are authentic whole-task practice situations. The instructional design tools are based on van Merriënboer's 4C/ID^* methodology (1997). The article describes a training design tool (Core) that supports the analysis and design for competency-based training programs and an evaluation tool (Eval) that supports the subsequent revision of this training design.  相似文献   

2. Erwin Teufel (Hrsg.): Was h?lt die moderne Gesellschaft zusammen?
Frankfurt am Main. Suhrkamp, 1996, 340 S., Preis: 24,80 DM     

Martina L?w 《Zeitschrift für Erziehungswissenschaft》2001,4(2):286

  相似文献   

韩礼德系统语法语言分析的模式   总被引：3，自引：0，他引：3  

成方志 《滨州学院学报》2001,17(1):44-47

:语言可以从不同角度加以研究。该文从六个方面简单阐述了系统语法大师M .A .K .Halliday语言分析的模式 ,主要内容包括 :语言的层次 ,链轴和选择轴 ,语法结构 ,语法单位 ,语法的级阶和语法系统  相似文献   

An adaptive strategy for controlling chaotic system     

曹一家  张红先 《浙江大学学报(A卷英文版)》2003,4(3):258-263

This paper presents an adaptive strategy for controlling chaotic systems. By employing the phase space reconstruction technique in nonlinear dynamical systems theory, the proposed strategy transforms the nonlinear system into canonical form, and employs a nonlinear observer to estimate the uncertainties and disturbances of the nonlinear system, and then establishes a state-error-like feedback law. The developed control scheme allows chaos control in spite of modeling errors and parametric variations. The effectiveness of the proposed approach has been demonstrated through its applications to two well-known chaotic systems: Duffing oscillator and Rössler chaos.  相似文献   

现代远程教育模式下计算机基础教学探讨     

谭炳菊 《辽宁教育行政学院学报》2007,24(4):70-71

现代远程教育是建立在网络环境下的多种媒体教学资源综合应用、多种教学手段相互补充、学生自主学习、以教师导学为辅的教学模式。远程教育打破了传统教育的时空限制、地域限制,使学习者可以按照自己的学习计划在网上学习,能更充分地利用教育资源,使优秀学校、优秀教师、优秀课程能为全社会的学习者所共享。  相似文献