排序方式： 共有84条查询结果，搜索用时 46 毫秒
51.
Petros J. Axaopoulos Konstantinos N. Moutsopoulos Michael P. Theodoridis 《European Journal of Engineering Education》2012,37(1):39-48
An experiment using real hardware and under real test conditions can be remotely conducted by engineering students and other interested individuals in the world via the Internet and with the capability of live video streaming from the test site. The presentation of this innovative experiment refers to the determination of the current voltage characteristic curve of a photovoltaic panel installed on the roof of a laboratory, facing south and with the ability to alter its tilt angle, using a closed loop servo motor mounted on the horizontal axis of the panel. The user has the sense of a direct contact with the system since they can intervene and alter the tilt of the panel and get a live visual feedback besides the remote instrumentation panel. The whole procedure takes a few seconds to complete and the characteristic curve is displayed in a chart giving the student and anyone else interested the chance to analyse the results and understand the respective theory; meanwhile, the test data are stored in a file for future use. This type of remote experiment could be used for distance education, training, part-time study and to help students with disabilities to participate in a laboratory environment. 相似文献
52.
Young Suk Hwang Konstantinos Vrongistinos 《The American journal of distance education》2013,27(3):172-179
Abstract The purpose of this article is to examine the nature of the Blackboard and Skype-based electronic mentoring system for beginning teachers. The Quality Teachers for Quality Students project developed an electronic mentoring system between beginning teachers and experienced teachers to support beginning teachers' instructional and classroom management skills with regard to the unique needs of English language learners (ELLs) in Southern California. The data analysis indicated that the combination of using Blackboard and Skype tools was beneficial to beginning teachers' effective teaching of ELLs. 相似文献
53.
Konstantinos Tampakis 《Science & Education》2013,22(4):789-805
In this paper, I describe the strong and reciprocal relations between the emergence of the specialized expert in the natural sciences and the establishment of science education, in early Modern Greece. Accordingly, I show how science and public education interacted within the Greek state from its inception in the early 1830, to the first decade of the twentieth century, when the University of Athens established an autonomous Mathematics and Physics School. Several factors are taken into account, such as the negotiations of Western educational theories and practices within a local context, the discourses of the science savants of the University of Athens, the role of the influential Greek pedagogues of the era, the state as an agent which imposed restrictions or facilitated certain developments and finally the intellectual and cultural aspirations of the nation itself. Science education is shown to be of fundamental importance for Greek scientists. The inclusion of science within the school system preceded and promoted the appearance of a scientific community and the institution of science courses was instrumental for the emergence of the first trained Greek scientists. Thus, the conventional narrative that would have science appearing in the classrooms as an aftermath of the emergence of a scientific community is problematized. 相似文献
54.
Science & Education - Teaching and learning introductory thermodynamics has drawn considerable research attention over the last two decades, especially in several disciplines of higher... 相似文献
55.
Panagiotis Pantidos Konstantinos Ravanis Kostas Valakas Evangelos Vitoratos 《Science & Education》2014,23(3):621-642
This study examines how focusing on the notion of ‘poeticality’ (poetical forms) can provide functional insights with respect to the narrativeness of physics teaching. From this perspective, through both a meaning-making and aesthetic approach, this article explores how vehicles such as verse and rhetorical figures—metaphor, irony, litotes, hyperbole, antithesis and paradox—can create written and oral texts for the teaching of physics, using a language with poetic significance. This standpoint exists in parallel with an increasingly acknowledged fact in the field of science education, i.e., that the context and particularly the modes of representation potentially affect students’ comprehension. In this way, science education is allowed to escape the dominance of the cognitive paradigm and to concentrate on the study of students’ conceptualisations in relation to the modalities used to shape meanings. 相似文献
56.
Dzewaltowski DA Karteroliotis K Welk G Johnston JA Nyaronga D Estabrooks PA 《运动与训练心理学杂志》2007,29(3):310-332
This study developed youth self-efficacy (SEPA) and proxy efficacy (PEPA) measures for physical activity (PA). Proxy efficacy was defined as a youth's confidence in his or her skills and abilities to get others to act in one's interests to create supportive environments for PA. Each spring of their sixth-, seventh-, and eighth-grade years, middle school students completed SEPA and PEPA questions and then, for 3 days, recalled their previous day's after-school PA. Exploratory and confirmatory factor analyses revealed a four-factor structure (SEPA for 1-3 days, SEPA for 5-7 days, PEPA-Parents, PEPA-School). Across study years, SEPA 1-3 days and 5-7 days increased and PEPA-Parents and PEPA-School decreased. Initial levels of PEPA-Parents and SEPA scales were associated with initial levels of PA. From sixth through seventh grade, changes in SEPA scales were associated with changes in PA. Studies should test whether interventions targeting self-efficacy and proxy efficacy influence PA. 相似文献
57.
Vasiliki Spiliotopoulou-Papantoniou Konstantinos Agelopoulos 《Science & Education》2009,18(9):1153-1175
This paper focuses on the attempt to include a historical perspective in a pre-service teacher education course. It is based
on the design research approach and the main aim is the development of a product, a module for student–teachers’ actual involvement
in the historic teaching design process. Student–teachers were presented and familiarized with the reasons for including a
historical component in teaching, and with the meaning and teaching function of three historical examples. They were asked
to search for historical materials on the basis of which they had to design teaching interventions justifying their choices.
Total of 74 teaching interventions have been analyzed and a systemic network has been produced with the identified categories
of their characteristics. Two case studies of students’ interventions with their historical materials are also discussed.
Findings show that the group of student–teachers studied was able to develop a range of interesting materials. Traditional
models of teaching that are held by student–teachers are obstacles for substantiating the historical perspective. Only a few
student–teachers succeed in stating meaningful epistemic goals, while some others lack awareness of the potential of their
own material for communicating aspects of the nature of science to students. Results appear that can lead to a future module’s
revision, and further research steps. 相似文献
58.
Chariklia K. Deli Athanasios Poulios Kalliopi Georgakouli Konstantinos Papanikolaou Alexandros Papoutsis Maria Selemekou 《Journal of sports sciences》2018,36(19):2172-2180
The present study investigated the effect of Corinthian currant pre-exercise supplementation on metabolism, performance and blood redox status during, and after prolonged exercise. Eleven healthy participants (21-45y) performed a 90-min constant-intensity (60–70% VO2max) submaximal-trial, plus a time-trial (TT) to exhaustion (95% VO2max) after consuming an isocaloric (1.5g CHO/kg BM) amount of randomly assigned Corinthian currant or glucose-drink, or water (control). Blood was drawn at baseline, pre-exercise, 30min, 60min, 90min of submaximal-trial, post-TT, and 1h post-TT. Post-ingestion blood glucose (GLU) under Corinthian currant was higher compared with water, and similar compared with glucose-drink throughout the study. Respiratory quotient under Corinthian currant was similar with glucose-drink and higher than water throughout the submaximal trial. Accordingly, higher CHO and lower fat oxidation were observed under Corinthian currant compared with water. The TT performance was similar between Corinthian currant, glucose-drink and water. Redox status were similar under all three conditions. Reduced glutathione (GSH) declined while total antioxidant capacity (TAC) and uric acid increased during exercise. GSH and TAC returned to baseline, while uric acid remained increased the following 1h. Corinthian currant, although did not alter exercise-mediated redox status changes and performance, was equally effective to a glucose-drink in maintaining GLU levels during prolonged cycling. 相似文献
59.
Various aspects of computational thinking (CT) could be supported by educational contexts such as simulations and video-games construction. In this field study, potential differences in student motivation and learning were empirically examined through students’ code. For this purpose, we performed a teaching intervention that took place over five weeks, with two-hour sessions per week, plus two more weeks for the pretest and post-test projects. Students were taught programming concepts through a science project; one group represented the function of a basic electric circuit by creating a simulation, while the other group represented the same function by creating a video game in which a player should achieve a score in order to win. Video game construction resulted in projects with higher CT skills and more primitives, as measured through projects’ code analysis. Moreover, the video-game context seems to better motivate students for future engagement with computing activities. 相似文献
60.
Meli Kalliopi Lavidas Konstantinos Koliopoulos Dimitrios 《Research in Science Education》2020,50(3):1075-1091
Research in Science Education - Low enrolment in undergraduate level physics programmes has drawn the attention of the relevant disciplines, education policy-makers, and researchers worldwide. Many... 相似文献