投资项目经济评价指标分析     

高俊强 《黄冈职业技术学院学报》2008,10(2):81-83

本文主要对常用经济评价指标：净现值、净现值率、投资回收期和内部收益率从理论上指出它们各自的特点,并分析了应用时的局限性。  相似文献   

面向课堂教学评价的形式化建模与智能计算     

张立山  冯硕  李亭亭 《现代远程教育研究》2021,(1)

随着课堂教学从固化单一的教师传授,向强调小组协作参与的教学转变,如何面向以协作学习为基本特征的课堂实施形成性评价已成为教学评价改革亟需解决的问题。在智能技术支持下,形式化建模可以将复杂多变的课堂教学过程解构,形成数理模型;智能计算可以通过算法评估学生学习状态,并根据教学原则生成教学辅助信息。二者的结合可以促进人类智能与机器智能的有效融合,形成人机协同的课堂评价机制。面向课堂教学评价的形式化建模与智能计算通用架构,自下而上包含教与学行为的感知和存储、教与学行为评估模型的构建、教与学状态的智能计算和教学辅助信息的生成四个部分。前两部分着重对教育情境和问题的表征,是形式化建模的关键步骤;后两部分着重具体技术路线的实现,是智能计算的具体过程和功能体现。整个系统以教与学行为的感知和存储为基础,通过构建评估模型,确定模型的输出;然后引入智能算法对模型进行计算,达成对教与学状态的评估;最后根据相应教学原则,自动生成辅助教师进行课堂教学评价的信息。该通用架构以及人机协同教学、评价机制的进一步完善需要研究者携手教师进行"共同设计",协同教育学、计算机科学、心理学等多学科进行交叉研究。  相似文献   

Unravelling continuous assessment practice: Policy implications for teachers’ work and professional learning     

《Studies in Educational Evaluation》2016

Assessment policy in some countries continues to promote the use of continuous assessment (CA) within classrooms. Several policy claims have been made about the potential of CA to improve education. Using data from a 2010 evaluation of the Trinidad and Tobago Continuous Assessment Programme (CAP), canonical correlation analysis (CCA) was used to unravel the pattern of relationships between institutional variables, professional learning, teacher beliefs, and CA components. The CA components measured were (1) overall use, (2) multiple assessment formats use and (3) formative feedback use. Each CA component was shown to be associated with different variables, with overall use related to several teacher belief factors such as extra-role behaviour. However, multiple assessment formats use added only a small amount of unique variance to the CCA solution. Moreover, the canonical variate for formative feedback use was not statistically significant. These findings have implications for CA as a policy tool. Successful implementation of CA may require high quality professional learning as well as teacher workforce remodelling. Even when implemented successfully, however, CA may not be a useful vehicle for promoting high quality formative assessment or use of multiple assessment formats.  相似文献   

学生基础能力国际研究项目（PISA）的教育启示   总被引：1，自引：0，他引：1  

赵萱 《安庆师范学院学报(社会科学版)》2008,27(12):62-66

PISA评价作为大规模的学生基础能力国际比较研究,是目前世界上最有影响力的国际学生评价项目之一。PISA应用了一系列目前世界上先进的教育测量理论和成熟的操作模式来评价15岁在校生进入未来社会所必需的知识、技能的获得情况,其评价结果具有高度的可比性、可信性和有效性,受到了各国政府的重视,被视为检验各国教育体制和未来人才竞争的重要指标。PISA项目为教育改革与发展提供了有益的启示,被誉为“教育界的世界杯”,是国际比较教育研究的重要成果。  相似文献   

Assessment of Students’ Understanding of Variation     

Jane M. Watson  Ben A. Kelly 《Teaching Statistics》2007,29(3):80-88

Several tasks used in research studies are presented with assessment rubrics and examples of the development of student understanding. The tasks focus on students’ appreciation of variation in several contexts and illustrate the need to discuss variation in the classroom and to ask students specifically about it during assessment.  相似文献   

美国标准化考试反思——兼议中国大学英语四、六级考试     

唐滢 《湖北招生考试》2005,(12)

发轫于美国的标准化考试在世界范围内被大规模采用,但是,可以说标准化考试是在人们的批评声中走到今天的。为什么人们在如此强烈批评它的同时仍然一如既往地使用它?到底应该如何评价标准化考试?在分析美国标准化考试的现状、问题之后,从教育和文化的视角对标准化考试进行了审视,认为标准化考试有其存在的合理性,但在试题的设计、考试成绩的使用以及在教育评价指标中所在的权重应作到科学、客观。  相似文献   

Co-constructors of data,co-constructors of meaning: Teacher professional development in an age of accountability     

Leyton M. Schnellert  Deborah L. ButlerStephanie K. Higginson 《Teaching and Teacher Education》2008

This research examines how engaging teachers in collaboratively constructing situated assessments enhances teacher professional development, fosters meaningful shifts to practice, and supports productive conceptions of accountability. We conducted case studies of six teachers engaged as partners in investigating new approaches to assessing and fostering literacy. Findings suggested that supporting teachers to generate, interpret, and act upon assessment data within instructional change cycles assisted them in monitoring student performance, grounding instructional decisions in data, and enacting changes to practice. We also document how collaboratively constructing assessments with teachers supported conceptions of accountability considered meaningful by individuals adopting differing socio-political perspectives.  相似文献   

Evaluating fifth- and sixth-grade students’ expository writing: task development, scoring, and psychometric issues   总被引：1，自引：0，他引：1  

Jonna M. Kulikowich  Linda H. Mason  Scott W. Brown 《Reading and writing》2008,21(1-2):153-175

Drawing from multiple theoretical frameworks representing cognitive and educational psychology, we present a writing task and scoring system for measurement of students’ informative writing. Participants in this study were 72 fifth- and sixth-grade students who wrote compositions describing real-world problems and how mathematics, science, and social studies information could be used to solve those problems. Of the 72 students, 69 were able to craft a cohesive response that not only demonstrated planning in writing structure but also elaboration of relevant knowledge in one or more domains. Many-facet Rasch Modeling (MFRM) techniques were used to examine the reliability and validity of scores for the writing rating scale. Additionally, comparison of fifth- and sixth-grade responses supported the validity of scores, as did the results of a correlational analysis with scores from an overall interest measure. Recommendations for improving writing scoring systems based on the findings of this investigation are provided.  相似文献   

Assessment,and the literacy practices of trainee PCET teachers   总被引：1，自引：0，他引：1  

Jonathan Tummons 《International Journal of Educational Research》2008,47(3):184-191

Drawing on concepts of learning as socially situated within communities of practice and of literacy as social practice (the New Literacy Studies), this paper seeks to explore the assessment practices of a part-time teacher training course for teachers working in the post-compulsory education and training sector. This paper argues that the ways in which student teachers make sense of the assessment requirements of their course is not related to their prior experiences as students or as teachers, contradicting notions of transferable study skills. This paper also posits a conceptual framework for exploring the assessment process that seeks to reconcile assessment and pedagogy with the community of practice model.  相似文献   

NAEP美国公民教育进步评估   总被引：2，自引：0，他引：2  

马文琴 《外国教育研究》2008,35(6)

全国教育进步评估组织(NAEP)是美国测试学生学业的权威机构。1998年和2006年NAEP美国公民教育进步评估发现,美国中小学学生的公民课程成绩不理想,经过研究发现,主要原因在于政策支持不够、课程要求不充分、评价项目不够、师资准备不足、教学缺乏等。  相似文献