共查询到20条相似文献，搜索用时 453 毫秒
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Jackie Winspear 《通化师范学院学报》2002,(2)
President George W Bush signed the Elementary and Secondary Education Act (ESEA) into law on 8 January, releasing the most significant federal education reforms in a generation to the states for implementation under the banner "No Child Left Behind". Signing the bill at a high school in Hamilton, Ohio, Bush 相似文献
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HUANG Chuan-dong JIANG Fan 《浙江大学学报(A卷英文版)》2007,8(4):522-528
The objective of conformance testing is to determine whether an implementation under test (IUT) conforms to its specification. In distributed test architecture where there are multiple remote testers, the objective can be complicated by the fact that testers may encounter controllability and observability problems during the application of a test sequence. A certain amount of work has been done in the area of generating test sequence that is free from these problems. However, few researchers investigate them from the aspect of test execution. This work studies the test execution phase when test sequences are applied to the imple- mentation and it is pointed out that controllability and observability problems can be resolved if and only if the test system im- plements some timing constraints. When determining these constraints, the dynamic time information during test is taken into account, which reduces the test execution time and improves test efficiency further. 相似文献
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GAO Chun-mei 《美中教育评论》2007,4(7):42-45,55
In vocabulary testing, whether to adopt context is a heat-debated topic. In the article, an experiment is designed to investigate what is the effect of zero context and sentence context on the vocabulary testing？ And how do the different kinds of context in vocabulary affect the subjects＇ performance？ The experimental result demonstrates that sentence plays an important role in helping text-takers to figure out the correct meaning or target words. 相似文献
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Jonathan Supovitz 《Journal of Educational Change》2009,10(2-3):211-227
This article examines major trends in testing and accountability reform in the United States over the past decade. The review covers the apex and decline of the national experimentation with a range of alternative assessments and the rise of test-based accountability as a central policy initiative. These trends signify that testing has become a widely utilized instrument for educational reform in America. Research on these trends indicates that high stakes testing does motivate teachers and administrators to change their practices, yet the changes they motivate tend to be more superficial adjustments in content coverage and test preparation activities rather than promoting deeper improvements in instructional practice. Further, the information provided by large scale assessments is primarily useful to measure school and system progress, but of more limited utility for instructional guidance. Most problematic is that the high stakes testing system in America has been repeatedly promoted as a substantive reform in itself. However, high stakes testing is a relatively weak intervention because, while it reveals shortcomings, it does not contain the guidance and expertise to inform response. The article concludes with suggestions on how to capitalize on the strengths of high stakes testing while minimizing its shortcomings. 相似文献
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占学德 《上海大学学报(英文版)》2006,(5)
Unified modeling language(UML)is a powerful graphical modeling language with intuitional meaning.It provides various diagrams to depict system charac-teristics and complex environment fromdifferent view-points and different application layers.UML-basedsoftware development and modeling environments havebeen widely accepted in industry,including areas inwhich safetyis ani mportant issue such as spaceflight,defense,automobile,etc.To ensure and i mprovesoftware quality becomes a main concern in … 相似文献
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This study examined the usefulness of the Gesell Preschool Test (GPT), a developmental readiness test used by teachers and school psychologists to determine a child's readiness to begin formal instruction. Results of a discriminant analysis revealed that, after the effects of math and reading achievement had been accounted for, the GPT failed to contribute to the discrimination of 30 retained and 58 promoted kindergartners. Problems with the assessment and classification of immature children based on Gesell's developmental readiness concept are discussed. 相似文献
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The paper examines how teachers’ attitudes towards tracking (separating pupils into groups with different curricula on the basis of their abilities and results) differ among various generations of teachers. Fundamental and quick changes in the educational system occurred in the Czech Republic after the Velvet Revolution in 1989 as a unified educational system moved to a system strongly accenting tracking practices. We use this ‘policy discontinuity’ to validate teacher socialization theory and test three alternative socialization hypotheses based on different key periods in teachers’ development: the pupil experience hypothesis, the pedagogical preparation hypothesis and the pedagogical experience hypothesis. We work with a data-set from 2009 covering 1002 Czech teachers. The mean tests and the logistic regression analysis support the socialization theory, however only the pedagogical experience hypothesis was found to be most influential. 相似文献
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The over-load protective relay is widely used for motor protection. The reliability of the over-load protective relay directly affects the safe running of a motor. The reliability testing and reliability analysis of the over-load protective relay is an important way to improve the reliability of products. In this paper, the reliability test method of the over-load protective relay is studied, and the reliability tests of the typical products are carried out on a reliability tester developed by authors. In terms of the testing results, the reliability analysis is finished. The failure reasons are found and the measures are put forward to improve the reliability of the products. 相似文献
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Moores DF 《American annals of the deaf》2000,145(3):235-236
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HUANG Da-zhi CHEN Long-zhu 《浙江大学学报(A卷英文版)》2007,8(11):1746-1753
The principle and process of parallel seismic (PS) testing for the integrity testing of cemented soil columns are in- troduced in this paper. A three-dimensional (3D) finite element model (FEM) for the pile-soil system is established for impulse responses. Under saturated soil or unsaturated soil condition, several vibrating velocity-time histories at different depths in parallel hole are obtained based on the numerical simulation. It shows that the length of the pile and the one-dimensional (1D) P-wave velocity in the pile can be determined easily from the features of the mentioned velocity-time histories. By examining the slopes of the first arrival time plotted versus depth or the depth where the amplitude of the first arrival significantly decreases, the length of the pile can be determined. The effects of the 3D P-wave propagation through the saturated soil and the defect of the cemented soil column on the velocity-time histories are also investigated. 相似文献
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INTRODUCTION The Unified Modeling Language (UML)(Eriksson, 2003) is a visual language supporting thedesign and development of complex object-orientedsystems. While UML models focus primarily on thedefinition of system structure and behavior, theyprovide only limited means for describing test ob-jectives and test procedures. Furthermore, thegrowing system complexity increases the need forsolid testing. Thus, in 2001, the Object Manage-ment Group issued a Request for Proposal (U… 相似文献
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INTRODUCTION Ensuring the integrity and safe operation of oil pipelines network is critical for ensuring the trans- portation of one of the most important forms of en- ergy. An inspection vehicle, called intelligent pig, which employs ultrasonic non-destructive testing technique is often used to inspect oil transmission pipelines (Okamoto et al., 1999; Reher et al., 2002). The ultrasonic detection principle involves the fun- damental concept that a propagating wave will be reflected and/o… 相似文献
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Historically, school leaders have occupied a somewhat ambiguous position within networks of power. On the one hand, they appear to be celebrated as what Ball (2003) has termed the ‘new hero of educational reform'; on the other, they are often ‘held to account’ through those same performative processes and technologies. These have become compelling in schools and principals are ‘doubly bound’ through this. Adopting a Foucauldian notion of discursive production, this paper addresses the ways that the discursive ‘field’ of ‘principal’ (within larger regimes of truth such as schools, leadership, quality and efficiency) is produced. It explores how individual principals understand their roles and ethics within those practices of audit emerging in school governance, and how their self-regulation is constituted through NAPLAN – the National Assessment Program, Literacy and Numeracy. A key effect of NAPLAN has been the rise of auditing practices that change how education is valued. Open-ended interviews with 13 primary and secondary school principals from Western Australia, South Australia and New South Wales asked how they perceived NAPLAN's impact on their work, their relationships within their school community and their ethical practice. 相似文献
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Mary Dixon 《Teaching Education》2016,27(3):327-339
International benchmarking and national testing of students at all levels of schooling have provoked teachers to critically reflect on their place in this endeavour. Many of the curriculum and pedagogical approaches associated with this type of assessment and accountability conflict with long-held beliefs about the role of teachers and the work of schooling. Singapore is recognised for significant achievement in the international schooling arena and also has a long history of national testing. This study draws specifically on positioning theory to investigate teacher beliefs and positioning in these times. A large qualitative research project located in Singapore sought the ways experienced teachers positioned themselves and their work as they negotiated multiple and sometimes conflicting discourses of teaching. A rigorous process was used to elicit teacher beliefs and resultant teacher positions. 相似文献
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INTRODUCTIONHardceramicfilmsdepositedbychemicalva pordeposition (CVD)andphysicalvapordeposi tion (PVD)techniqueshadbeenwidelyappliedinindustry .Coatingadhesionisaveryimportantpropertyforevaluatingthecoatingquality.Themethodevaluatingtheadhesionstrengthoft… 相似文献