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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
171

Common misconceptions about everyday astronomy-related phenomena among students in the 9th grade

Strömbäck, Gustav January 2012 (has links)
Students of all ages host a wide variety of scientifically inaccurate ideas and conceptions about everyday astronomical phenomena, such as the seasons, the moon phases, and gravity. The field of Astronomy Education Research has over the last decade experienced an accelerating growth, although the majority of studies have been conducted in the USA. In this work, the 9th grade students of a typical Swedish school were surveyed by means of a questionnaire in order to probe their conceptual understanding of several key concepts in astronomy. In the end, the number of respondents amassed to a total of 90. The results were analyzed with a constructivist approach in light of conceptual change theory and phenomenological primitives. In conjunction to this a postmodern view of the problem in question is presented. The compiled numbers were compared to the results of American high school students found in the large database of A Private Universe Project. The two samples were found to display only minor differences. Most notably, only around one in ten Swedish students could correctly account for the origin of the seasons, and only a very small percentage could point out the true distance-relation between the Earth and the Moon. In addition, approximately half of the students did not know the reason for why the Moon changes phase, and one in every four or five students believes there are stars between the planets in the Solar system. An analysis of the student sample was also made after separating out students who will obtain further education in astronomy in upper secondary school. With only one exception, no differences between the groups were found, suggesting that the misconceptions treated in this survey are present among all groups of students up to a certain educational level. However, in the group not intending to study more astronomy an astonishing 72 % had incorrect beliefs regarding the day/night cycle, indicating a possible fundamental lack of conceptual understanding about one of the most everyday astronomy-related concepts.
172

Student Recognition of Visual Affordances: Supporting Use of Physics Simulations in Whole Class and Small Group Settings

Stephens, A. Lynn 01 September 2012 (has links)
The purpose of this study is to investigate student interactions with simulations, and teacher support of those interactions, within naturalistic high school physics classroom settings. This study focuses on data from two lesson sequences that were conducted in several physics classrooms. The lesson sequences were conducted in a whole class discussion format in approximately half of the class sections and in a hands-on-computer small group format in matched class sections. Analysis used a mixed methods approach where: (1) quantitative methods were used to evaluate pre-post data; (2) open coding and selective coding were used for transcript analysis; and (3) comparative case studies were used to consider the quantitative and qualitative data in light of each other and to suggested possible explanations. Although teachers expressed the expectation that the small group students would learn more, no evidence was found in pre-post analysis for an advantage for the small group sections. Instead, a slight trend was observed in favor of the whole class discussion sections, especially for students in the less advanced sections. In seeking to explain these results, qualitative analyses of transcript and videotape data were conducted, revealing that many more episodes of support for interpreting visual elements of the simulations occurred in the whole class setting than in the matched small group discussions; not only teachers, but, at times, students used more visual support moves in the whole class discussion setting. In addition, concepts that had been identified as key were discussed for longer periods of time in the whole class setting than in the matched small group discussions in six of nine matched sets. For one of the lesson sequences, analysis of student work on in-class activity sheets identified no evidence that any of the Honors or College Preparatory students in the small groups had made use in their thinking of the key features of the sophisticated and popular physics simulation they had used, while such evidence was identified in the work of many of the whole class students. Analysis of the whole class discussions revealed a number of creative teaching strategies in use by the teachers that may have helped offset the advantage of hands-on experience with the simulations and animations enjoyed by the small group students. These results suggest that there may exist whole class teaching strategies for promoting at least some of the active thinking and exploration that has been considered to be the strength of small group work, and appear to offer encouragement to teachers who do not have the resources to allow their classes to engage regularly in small group work at the computer. Furthermore, these examples suggest the somewhat surprising possibility that there may be certain instructional situations where there is an advantage to spending at least part of the time with a simulation or animation in a whole class discussion mode.
173

Transformation of the Dental Faculty to Promote Changes in Dental Educaiton

Dana, Clark A 01 August 2019 (has links)
This work introduces a series of papers developed to explore the case for change in dental education. Three issues facing dental education are (a) the challenging financial environment of higher education, making dental schools very expensive and tuition-intensive for universities to operate and producing high debt levels for students, which limits access to education and restricts career choices; (b) the profession's apparent loss of vision for taking care of the oral health needs of all components of society and the resultant potential for marginalization of dentistry as a specialized health care service available only to the affluent; and (c) the nature of dental school education itself, which has been described as convoluted, expensive, and often deeply dissatisfying to its students. The theoretical rational for this work is that developing dental faculty from solely clinicians to academicians will allow for the curricular change so needed in dental education. Furthermore, it is curricular change that can lead to changes in the oral health profession.My work first explores the scientific nature of research into dental education to determine its ability to advance the profession. This study found that while there has been a small increase in the amount of rigorous dental education research in the past 10 years, it remains a small percentage of the overall research completed in the field. We then researched the effect of pedagogical training for dental clinicians and discovered predictors for those faculty members more likely to alter their methods to be more student centered. Our narrative research into faculty resistors (those unwilling to change) allowed us to identify themes that can alter our approach to future faculty development. And finally, we researched the effect of modern pedagogy on a course in the dental school curriculum. This research allowed us to justify curricular changes that improve efficiency and student performance.
174

Changing research topic trends as an effect of publication rankings – The case of German economists and the Handelsblatt Ranking

Buehling, Kilian 07 September 2023 (has links)
In order to arrive at informed judgments about the quality of research institutions and individual scholars, funding agencies, academic employers and researchers have turned to publication rankings. While such rankings, often based on journal citations, promise a more efficient and transparent funding allocation, individual researchers are at risk of showing adaptive behavior. This paper investigates whether the use of journal rankings in assessing the quality of scholarly research results in the unintended consequence of researchers adapting their research topics to the publishing interests of high-ranked journals. The introduction of the Handelsblatt Ranking (HBR) for economists in German language institutions serves as a quasi-natural experiment, allowing for an examination of research topic dynamics in economics via topic modeling and text classification. It is found that the Handelsblatt Ranking did not cause a significant shift of topics researched by German-affiliated authors in comparison to their international counterparts, even though topic convergence is apparent.
175

Student Misconceptions about Newtonian Mechanics: Origins and Solutions through Changes to Instruction

Adair, Aaron M. January 2013 (has links)
No description available.
176

Epistemologies and Scientific Reasoning Skills Among Undergraduate Science Students

Mollohan, Katherine N. 14 October 2015 (has links)
No description available.
177

Addressing Vision & Change in Undergraduate Biology Education: Two Case Studies

Nagel, Steven Todd 20 December 2016 (has links)
No description available.
178

A Social Network Analysis of an Introductory Calculus-Based Physics Class with Comparisons of Traditional and Non-Traditional Students, FCI Scores, and Network Centralities

Sandt, Emily 10 August 2016 (has links)
No description available.
179

Toward understanding writing to learn in physics: investigating student writing

Demaree, Dedra Nicole 22 September 2006 (has links)
No description available.
180

A Study on Contingency Learning in Introductory Physics Concepts

Scaife, Thomas Mark 16 December 2010 (has links)
No description available.

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