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   

Play behavior of hearing impaired children: integrated and segregated settings   总被引：1，自引：0，他引：1  

B G Esposito  M A Koorland 《Exceptional children》1989,55(5):412-419

The free-play behavior of young hearing impaired children in integrated and segregated settings was compared using a multielement baseline design. Two children, aged 3 and 5, were observed using momentary time sampling of their play as they alternated from one setting to the other. Data were collected in ech setting for various categories of play behavior. The categories were derived from the classic play categories of Parten and Smilansky. Results indicate that the children engaged in more socially advanced play in the integrated setting.  相似文献   

THE VALIDITY AND RELIABILITY OF ORAL EXAMINATIONS IN ASSESSING COGNITIVE SKILLS IN MEDICINE1     

HAROLD G. LEVINE  CHRISTINE H. McGUIRE 《Journal of Educational Measurement》1970,7(2):63-74

In order to attempt to assess aspects of clinical competence, not adequately assessed by other means, the Center for the Study of Medical Education, University of Illinois College of Medicine together with the American Board of Orthopaedic Surgery developed oral examinations in formats specifically designed to yield information on high level cognitive functioning. The examinations were administered to 784 candidates for certification in January 1968. Reliability of the oral problem-solving component score pooled from four examiners was approximately .50. Assessment of content, construct, and concurrent validity made by questionnaire and factor analytic studies indicated that the oral tests identified factors not measured by multiple-choice tests and, therefore, significantly improved the relationship between supervisory evaluations and test scores.  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   

Wandel in der Fremdsprachenpolitik der DDR     

Günter Böhme 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1991,37(1):168-172

Ohne Zusammenfassung  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   

Classroom     

G. Venkatesh  Uday Maitra 《Resonance》1996,1(1):92-97

  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   

III. Replication with 5-Year-olds of Types and their Associations with Achievement and Behavior     

Daniel Hart  Robert Atkins  Suzanne G. Fegley 《Monographs of the Society for Research in Child Development》2003,68(1):35-46

  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