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- Genre: Academic theses
Description
An integral part of teacher development are teacher observations. Many teachers are observed once or twice a year to evaluate their performance and hold them accountable for meeting standards. Instructional coaches, however, observe and work with teachers to help them reflect on their performance, with the goal of improving their practice. Video-based evidence has long been used in connection with teacher reflection and as the technology necessary to record video has become more readily available, video recordings have found an increasing presence in teacher observations. In addition, more and more schools are turning to mobile technology to help record evidence during teacher observations. Several mobile applications have been developed, which are designed to help instructional coaches, administrators, and teachers make the most of teacher observations. This study looked at the use of the DataCapture mobile application to record video-based evidence in teacher observations as part of an instructional coaching program in a large public school district in the Southwestern United States. Six instructional coaches and two teachers participated in interviews at the end of the study period. Additional data was collected from the DataCapture mobile application and from a survey of instructional coaches conducted by the school district in connection with its Title I programs. Results show that instructional coaches feel that using video-based evidence for teacher reflection is effective in a number of ways. Teachers who have experienced seeing themselves on video also felt that video-based evidence is effective at improving teacher reflection, while teachers who have not yet experienced seeing themselves on video displayed extreme apprehensiveness about being video recorded in the classroom. Instructional coaches felt the DataCapture mobile application was beneficial in teacher evaluation, but there were several issues that impacted the use of the mobile application and video-based evidence, including logistics, time requirements, and administrative support. The discussion focuses on recommendations for successfully using video-based evidence in an instructional coaching context, as well as some suggestions for other researchers attempting to study how video-based evidence impacts teachers' ability to reflect on their own teaching.
ContributorsShewell, Justin Reed (Author) / Bitter, Gary (Thesis advisor) / Dawson, Edwin (Committee member) / Blair, Heidi (Committee member) / Arizona State University (Publisher)
Created2013
Description
Strong communities are important for society. One of the most important community builders, making friends, is poorly supported online. Dating sites support it but in romantic contexts. Other major social networks seem not to encourage it because either their purpose isn't compatible with introducing strangers or the prevalent methods of introduction aren't effective enough to merit use over real word alternatives. This paper presents a novel digital social network emphasizing creating friendships. Research has shown video chat communication can reach in-person levels of trust; coupled with a game environment to ease the discomfort people often have interacting with strangers and a recommendation engine, Zazzer, the presented system, allows people to meet and get to know each other in a manner much more true to real life than traditional methods. Its network also allows players to continue to communicate afterwards. The evaluation looks at real world use, measuring the frequency with which players choose the video chat game versus alternative, more traditional methods of online introduction. It also looks at interactions after the initial meeting to discover how effective video chat games are in creating sticky social connections. After initial use it became apparent a critical mass of users would be necessary to draw strong conclusions, however the collected data seemed to give preliminary support to the idea that video chat games are more effective than traditional ways of meeting online in creating new relationships.
ContributorsSorensen, Asael (Author) / VanLehn, Kurt (Thesis advisor) / Liu, Huan (Committee member) / Burleson, Winslow (Committee member) / Arizona State University (Publisher)
Created2011
Description
During the first half of the last decade, there was a heated debate regarding what type of critical approach best suits the study of video games. Those who argued for approaches traditionally associated with narrative studies were primarily interested in video games as a new frontier for storytelling. The opposition claimed that video games are not systems for storytelling, and that applying literature and film theories to video games dismisses the interactive nature of video games as games. The argument was bitter, but ended abruptly with no clear results or consensus. Yet are narratology and ludology, the two proposed critical theories, so disparate that the use of one means the exclusion of the other? This paper suggests the possibility that narratology and ludology share more in common than critics have thus far realized. Both games and story share themes of conflict, and in focalizing on the antagonist of single-player video games it becomes possible to trace the development of conflict and how it functions in the video game medium. In analyzing antagonists and the conflict they embody, it becomes apparent that narratology and ludology are not so incompatible in their methodologies and assumptions. Finally, because video games themselves are a multifaceted medium, it is only appropriate that critics use multiple theoretical approaches in their analysis to broaden critical knowledge of how the medium functions.
ContributorsNeel, James (Author) / Hayes, Elisabeth (Thesis advisor) / Gee, James P (Committee member) / Daer, Alice (Committee member) / Arizona State University (Publisher)
Created2012
Description
Research in fulfillment of the degree of Doctor of Musical Arts in performance has included CD recording projects, commissions of new pieces, as well as papers on existing pieces that push the performer beyond traditional playing by incorporating extended techniques, multimedia, technology, or movement. This study attempts to synthesize these ideas by commissioning a new work for clarinet and electronics that can be performed alone, combined with movement, or with an interactive video accompaniment. Primary work for this project has been the audio recording, music video, and live dance performance of the new work, entitled Agents of Espionage, which can be viewed at: http://www.youtube.com/watch?v=SAZ20kCb0Qg or http://www.youtube.com/watch?v=94- C7wWTeKs&context;=C4063fdcADvjVQa1PpcFPv1fBtuWcqgV638q_BRacH7 XWR-xy1B7A=. The entirety of the project, including creating the music, video, audio recordings, and dance was completed on a limited budget of under $500USD, using all student performers and creators. The accompanying written document outlines the various steps for completing each portion of the project, interviews with the artists involved, including Zachary Bramble, composer; Jason Mills, videographer; and Jacquelyn Achord, choreographer; and an analysis of the music from the performer's perspective. This paper should convey ideas about how future undertakings of this sort are possible. This work has been greatly inspired by Martin Fröst and his collaboration with Fredrik Hogberg on the piece The Invisible Duet.
ContributorsViliunas, Brian Bodo (Author) / Spring, Robert (Thesis advisor) / Hill, Gary (Committee member) / Marshall, Kimberly (Committee member) / Schuring, Martin (Committee member) / Rogers, Rodney (Committee member) / Gardner, Joshua (Committee member) / Arizona State University (Publisher)
Created2012
Description
I believe the human mind is not an accurate reproducer of objects and events, but a tool that constructs their qualities. Philosophers Bowman Clarke, James John, and Amy Kind have argued for and against similar points, while Daniel Hoffman and Jay Dowling have debated cases from a psychological perspective. My understanding of their discourse surfaces in Cognize Normal-Like Pleez, a video installation designed to capture the enigmatic connection between perceivers and the things they perceive. The composition encapsulates this theme through a series of five videos that disseminate confusing imagery paired with mangled sounds. The miniatures operate in sequence on computer monitors set inside a haphazardously ornamented tower. Though the original sources for each video communicate clear, familiar subjects, the final product deliberately obscures them. Sometimes sounds and images flicker for only brief moments, perhaps too fast for the human mind to fully process. Though some information comes through, important data supplied by the surrounding context is absent.
I invite the audience to rationalize this complexing conglomerate and reflect on how their established biases inform their opinion of the work. Each person likely draws from his or her experiences, cultural conditioning, knowledge, and other personal factors in order to create an individual conceptualization of the installation. Their subjective conclusions reflect my belief concerning a neurological basis for the origin of qualities. One’s connection to Cognize’s images and sounds, to me, is not derived solely from characteristics inherent to it, but also endowed by one’s mind, which not only constructs the attributes one normally associates with the images and sounds (as opposed to the physics and biology that lead to their construction), but also seamlessly incorporates the aforementioned biases. I realize my ideas by focusing the topics of the videos and their setting around the transmission of information and its obfuscation. Just as one cannot see or hear past the perceptual barriers in Cognize, I believe one cannot escape his or her mind to “sense” qualities in an objective, disembodied manner, because the mind is necessary for perception.
I invite the audience to rationalize this complexing conglomerate and reflect on how their established biases inform their opinion of the work. Each person likely draws from his or her experiences, cultural conditioning, knowledge, and other personal factors in order to create an individual conceptualization of the installation. Their subjective conclusions reflect my belief concerning a neurological basis for the origin of qualities. One’s connection to Cognize’s images and sounds, to me, is not derived solely from characteristics inherent to it, but also endowed by one’s mind, which not only constructs the attributes one normally associates with the images and sounds (as opposed to the physics and biology that lead to their construction), but also seamlessly incorporates the aforementioned biases. I realize my ideas by focusing the topics of the videos and their setting around the transmission of information and its obfuscation. Just as one cannot see or hear past the perceptual barriers in Cognize, I believe one cannot escape his or her mind to “sense” qualities in an objective, disembodied manner, because the mind is necessary for perception.
ContributorsLempke, John Paul (Author) / Suzuki, Kotoka (Thesis advisor) / Knowles, Kristina (Committee member) / Stover, Chris (Committee member) / Arizona State University (Publisher)
Created2018
Description
The Internet of Things (IoT) has become a more pervasive part of everyday life. IoT networks such as wireless sensor networks, depend greatly on the limiting unnecessary power consumption. As such, providing low-power, adaptable software can greatly improve network design. For streaming live video content, Wireless Video Sensor Network Platform compatible Dynamic Adaptive Streaming over HTTP (WVSNP-DASH) aims to revolutionize wireless segmented video streaming by providing a low-power, adaptable framework to compete with modern DASH players such as Moving Picture Experts Group (MPEG-DASH) and Apple’s Hypertext Transfer Protocol (HTTP) Live Streaming (HLS). Each segment is independently playable, and does not depend on a manifest file, resulting in greatly improved power performance. My work was to show that WVSNP-DASH is capable of further power savings at the level of the wireless sensor node itself if a native capture program is implemented at the camera sensor node. I created a native capture program in the C language that fulfills the name-based segmentation requirements of WVSNP-DASH. I present this program with intent to measure its power consumption on a hardware test-bed in future. To my knowledge, this is the first program to generate WVSNP-DASH playable video segments. The results show that our program could be utilized by WVSNP-DASH, but there are issues with the efficiency, so provided are an additional outline for further improvements.
ContributorsKhan, Zarah (Author) / Reisslein, Martin (Thesis advisor) / Seema, Adolph (Committee member) / Papandreou-Suppappola, Antonia (Committee member) / Arizona State University (Publisher)
Created2018
Description
Present day Internet Protocol (IP) based video transport and dissemination systems are heterogeneous in that they differ in network bandwidth, display resolutions and processing capabilities. One important objective in such an environment is the flexible adaptation of once-encoded content and to achieve this, one popular method is the scalable video coding (SVC) technique. The SVC extension of the H.264/AVC standard has higher compression efficiency when compared to the previous scalable video standards. The network transport of 3D video, which is obtained by superimposing two views of a video scene, poses significant challenges due to the increased video data compared to conventional single-view video. Addressing these challenges requires a thorough understanding of the traffic and multiplexing characteristics of the different representation formats of 3D video. In this study, H.264 quality scalability and multiview representation formats are examined. As H.264/AVC, it's SVC and multiview extensions are expected to become widely adopted for the network transport of video, it is important to thoroughly study their network traffic characteristics, including the bit rate variability. Primarily the focus is on the SVC amendment of the H.264/AVC standard, with particular focus on Coarse-Grain Scalability (CGS) and Medium-Grain Scalability (MGS). In this study, we report on a large-scale study of the rate-distortion (RD) and rate variability-distortion (VD) characteristics of CGS and MGS. We also examine the RD and VD characteristics of three main multiview (3D) representation formats. Specifically, we compare multiview video (MV) representation and encoding, frame sequential (FS) representation, and side-by-side (SBS) representation; whereby conventional single-view encoding is employed for the FS and SBS representations. As a last step, we also examine Video traffic modeling which plays a major part in network traffic analysis. It is imperative to network design and simulation, providing Quality of Service (QoS) to network applications, besides providing insights into the coding process and structure of video sequences. We propose our models on top of the recent unified traffic model developed by Dai et al. [1], for modeling MPEG-4 and H.264 VBR video traffic. We exploit the hierarchical predication structure inherent in H.264 for intra-GoP (group of pictures) analysis.
ContributorsPulipaka, Venkata Sai Akshay (Author) / Reisslein, Martin (Thesis advisor) / Karam, Lina (Thesis advisor) / Li, Baoxin (Committee member) / Seeling, Patrick (Committee member) / Arizona State University (Publisher)
Created2012
Description
Research suggests there is no significant difference in outcomes for online learners and on-campus learners. Several decades of online learning have also consistently demonstrated online students are less likely to persist than those students attending on campus. The Community of Inquiry (CoI) framework describes social presence, teaching presence, and cognitive presence as components of a quality online learning experience, and research links these three constructs to student retention. Using the lens of the CoI framework, this mixed methods action research study sought to increase social presence and teaching presence in asynchronous online courses at Davenport University using embedded video feedback mechanisms, in support of student persistence and retention. The Community of Inquiry survey instrument was used to quantitatively measure the changes in social presence and teaching presence between courses with and without the video feedback mechanisms. Qualitative research interviews were conducted to probe for meaning and a greater understanding of both student and instructor experiences in the courses. Results of the study indicated small but significant gains in teaching presence, but other quantitative measures showed no changes with the introduction of the videos. Qualitative analysis suggests that students who watched the instructor videos reported higher levels of teaching presence for several subconstructs of teaching presence and social presence. However, the qualitative analysis also suggested that many students did not watch the instructor videos, and thus did not benefit from any increased presence. Student discussion response videos yielded similar results qualitatively, with benefits demonstrated by those students who watched the videos but none by those who abstained.
ContributorsMiller, Brian John-Suydam (Author) / Salik, Steve (Thesis advisor) / Nelson, Brian (Committee member) / Nyambane, Gerald (Committee member) / Arizona State University (Publisher)
Created2022