Teaching high school science using image processing: A case study of implementation of computer technology

An in-depth case study of teachers' use of image processing (a state-of-the-art computer technology used by research scientists) in biology, earth science, and physics classes within one high school science department explored issues surrounding technology implementation. The study, conducted within a districtwide, schoolwide, and classroom context, explored four areas related to the teacher's adoption of image processing: (a) teachers' background with computers outside of instructional use, (b) teachers' attitudes toward educational technology and insights gained from their experience using computers within the science curriculum, (c) training and perceived influence of district and school administrators, and (d) teachers' classroom and computer lab practices. The following factors were deemed critical in teachers' decision to use or not use image processing with their students: (a) time to thoroughly explore and master the technology so they could use it with students to explore science concepts; (b) classroom management skills specific to technology use; (c) perception of the teaching value of the technology; (d) perception of the reasonableness of administrators' expectations for technology use; and (e) understanding of how to implement inquiry-based science teaching, independent of technology issues. These factors have implications for how to help teachers use computer technology to teach high school science. © 1998 John Wiley & Sons, Inc. J Res Sci Teach 35: 297–327, 1998.     

中国中小学生积极心理品质量表编制报告

西方研究者指出,积极心理品质是多维度的,是包含个体思想、情感和行为等各方面的一系列积极品质的集合.本研究基于前人的既有研究,通过对1600名(有效数据1316人)被试的测量,开发出了中国中小学生积极心理品质量表.量表由六大分量表15个积极品质,共61题组成.统计检验表明,量表具有良好的信效度,可用于大规模测评中国中小学生积极心理品质发展状况.     

Effects of intensity on muscle-specific voluntary electromechanical delay and relaxation electromechanical delay

The purposes of this study were to examine: 1) the potential muscle-specific differences in voluntary electromechanical delay (EMD) and relaxation electromechanical delay (R-EMD), and 2) the effects of intensity on EMD and R-EMD during step incremental isometric muscle actions from 10 to 100% maximal voluntary isometric contraction (MVIC). EMD and R-EMD measures were calculated from the simultaneous assessments of electromyography, mechanomyography, and force production from the vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF) during step isometric muscle actions. There were no differences between the VL, VM, and RF for the voluntary EMD_E-M (onsets of the electromyographic to mechanomyographic signals), EMD_M-F (onsets the mechanomyographic to force production), or EMD_E-F (onsets of the electromyographic signal to force production) as well as R-EMD_E-M (cessation of electromyographic to mechanomyographic signal), R-EMD_M-F (cessation of mechanomyographic signal to force cessation), or R-EMD_E-F (cessation of electromyorgraphic signal to force cessation) at any intensity. There were decreases in all EMD and R-EMD measures with increases in intensity. The relative contributions from EMD_E-M and EMD_M-F to EMD_E-F as well as R-EMD_E-M and R-EMD_M-F to R-EMD_E-F remained similar across all intensities. The superficial muscles of the quadriceps femoris shared similar EMD and R-EMD measurements.     

9. Jahrestagung der World Federation for Mental Health (WFMH) Berlin, 12. bis 17. August 1956

Ohne Zusammenfassung     

What happens when accountability meets technology integration

Conclusion This discussion posited that the language of accountability at the federal and state levels has established the goal of schools as the raising of test scores and that this goal has trumped technology integration efforts. After outlining the basic tenets of both standards-based education and professional development efforts focused on technology integration, we highlighted three tensions that impact the relationship between standards-based education and professional development for technology integration. These tensions are traditional vs. progressive pedagogy; standardized tests vs. authentic assessment; and technology as central vs. technology as peripheral to pedagogy. We concluded with a few suggested strategies for addressing these tensions and provided suggestions for research. We believe that the most promising possibility for transcending the tension between standards-based education and professional development for technology integration is to refocus schools on excellent pedagogy. When excellent pedagogy becomes the cornerstone of school vision and the central focus of all professional development, standards and technology integration will also find their rightful places. His primary research interest involves professional development of K-12 teachers. He has also worked with the Teacher Institute for Curriculum Knowledge about Integration of Technology which promotes the thoughtful use of technology in rural Indiana Schools. she is engaged in research concerned with the relationships between learner engagement and web-based learning environments.     

Improving the quality and effectiveness of computer-mediated instruction through usability evaluations

Brigham Young University's Center for Instructional Design (CID) creates online courses and multimedia instructional applications for university faculty. This paper asserts that including usability testing as a part of evaluation improves the quality and effectiveness of computer‐mediated instruction. The paper describes the fundamental purpose and functions of usability testing, and also distinguishes between different forms of evaluation: accessibility, quality assurance (QA), usability and implementation. Through a detailed case study, we describe how usability testing improved the quality of a computer‐based chemistry course and facilitated a clearer analysis of the learning effectiveness of this course.     

Fidelity of implementation framework: A critical need for response to intervention models

Response to Intervention (RtI) has gained increased attention with the reauthorization of the Individuals with Disabilities Education Improvement Act. Since RtI was introduced at the policy level as a mechanism for use in the learning disability identification process, much of the implementation work has focused on this application. School‐based implementation of RtI has occurred quickly in response to federal legislation, with little focus on fidelity. Regular and consistent monitoring of implementation fidelity can provide the data required to improve implementation and student performance. This discussion will include a brief review of the literature regarding implementation fidelity and then provide a framework for designing a fidelity system for RtI models. Further systematic research in this area is needed to support the RtI implementation that is currently under way in schools across the country. © 2012 Wiley Periodicals, Inc.