Trends in teacher education increasingly emphasize the need for quality ongoing teacher professional development that is accessible, flexible, fosters advanced skillset development, and has the power to change teachers' practice. Participatory approaches to learning that are situated, collaborative, dialogic, and inquiry-oriented promote the development of such knowledge, skills, and practices within professional communities of practice and form a foundation for quality teacher professional development. Current online and collaborative technologies offer significant access, flexibility, and economic advantages and afford individuals ways to connect with others without time and space restrictions, making online teacher professional development possible. Online learning environments where deep knowledge and complex understanding emerge through dialogue and collaboration within communities of practice must be carefully designed. These learning environments are typically context-dependent, and the design solutions and their implementation may vary substantially. Therefore, these designs must be guided by the most current theoretical understanding and best instructional and design practices. Research in this dissertation adds to our understanding of effective online teacher professional development design, development, and implementation practices by responding to a local problem of redesigning existing teacher professional development courses into an online modality. This dissertation is presented in a three-article format. The first article is an integrative literature review. It contributes by bringing together theories, frameworks, and practices from several different disciplines and could inform online participatory professional development design solutions across various contexts. The second article is a design case featuring a template designed to support progressive knowledge-building discourse, a fundamental feature connecting multiple characteristics that contribute to effective teacher professional development. The third article presents findings from a self-study of design practice. It provides insight into decision-making during purposefully employing technology to meet pedagogical needs during the design process. This study demonstrates that aligning technology and pedagogy is feasible. The concept of pedagogical intent is proposed as a potentially valuable guiding principle that could enable such alignment while designing technology-mediated instruction. Designing high-quality online teacher professional development is a complex yet worthwhile endeavor. This dissertation offers valuable information about theoretical grounding related to designing online professional development, ways that productive dialogue and collaboration can be supported online, and the importance of technology-pedagogy alignment during the design process. We are only beginning to understand what works in online teacher professional development and why it works. More research is needed to identify theoretical frameworks, principles, and processes that could guide both practitioners and researchers in its design, development, implementation, and evaluation.

This study examined factors that might impact student knowledge sharing within virtual teams through online discussion boards. These factors included: trust, mutual influence, conflict, leadership, and cohesion. A path model was developed to determine whether relationships exist among knowledge sharing from asynchronous group discussion and the above five factors. In addition, this study examined if there are any relationships between quality and quantity of knowledge sharing and students' grades. A correlation design was conducted to discover if there are any relationships among these five factors and knowledge sharing within virtual teams. Participants in this study were 148 undergraduate students from two classes in the Health Services Administration program in the College of Health and Public Affairs. The two classes were asynchronous online courses and both instructors used virtual teaming in their online courses. Online interaction occurred via online discussion boards, email, and online chat rooms. The results indicate that mutual influence and team cohesion are two major factors that directly affect knowledge sharing within virtual teams. Conflict mediates the relationship between trust and knowledge sharing. Leadership was also found to have a strong relationship with team cohesion, which then had a relationship with knowledge sharing. As far as the relationship between quality and quantity of knowledge sharing and the student's grade, it was found that there is relationship between the quantity of knowledge sharing and students' grades, however, no significant relationship exists between quality of knowledge sharing and students' grades. The implications of this research for use of virtual teams in online distance education are also discussed.

With the improvement of computer technology and the prevalence of the Internet, learning activities taking place in cyberspace by means of computer-mediated communication have become more common and accessible than even a decade ago. Being interested in how politeness phenomena as universal principles in human interaction played a role in the process of online collaborative learning in a graduate-level course, I conducted a naturalistic inquiry to explore students’ interaction through the lens of Brown and Levinson’s politeness theory (1987). I analyzed the exchanges of 18 students divided into four teams with a consideration for such contextual factors as concerns about netiquette, time, modes of online communication, discourse functions, and sense of community. Influenced by the tradition of interpretivist/constructivist research paradigm, I adopted diverse data collection methods and discourse analytical techniques. Data are reported as a case study of a purposefully selected focal team of five students with supporting evidence interweaving multiple data sources (online discussion, self-reflective blog entries, self-report portfolios, peer/self assessments, field notes, videotapes of voice chat sessions, audiotapes of interviews, and online survey responses). Given the context of students being required to work collaboratively as a team throughout the semester, the findings of this study suggested that the focal team used a variety of politeness strategies to establish cohesion among members and to moderate the force imposed by presupposing too much underlying solidarity. Five contextual factors also emerged as influencing the focal team’s use of politeness strategies: norms/convention, online communication medium, topics and content of discussion, social distance, and personal differences. Instructional technology is subject to innovation and is meant to facilitate learning. Incorporating new technology (e.g., Second Life) into instructional settings can create new opportunities for learning on which learners’ use of politeness strategies depends. Thus, this study about politeness in an online collaborative learning context not only contributes to enriching views of politeness theory, but also in being able to help prepare learners to collaborate effectively in new immersive learning environments with comfort in the ways of fostering awareness of face-saving concerns to avoid or redress face threat situations that may damage team collaboration and lead to a negative learning experience. / text

This study investigated the students&rsquo / perceptions about the web-based learning environment in the blended learning environment in terms of web-based instruction, online collaborative learning and the online instructor. The study tried to show the contributions of the web-based instruction in traditional face-to-face instruction. In this case study, Programming Languages II Course (CEIT211), a undergraduate course at Computer Education and Instructional Technology Department (CEIT), at Middle East Technical University, at the 2002-2003 Spring semester, was delivered as blended learning with a new web site. Totally 65 subjects, 2nd year CEIT students, attended the course in the term and participated to the study. The course was delivered via traditional face-to-face instruction and supported with the web site. At the end of the semester, three questionnaires were administrated in order to understand the students&rsquo / perceptions about web-based learning environment in terms of web-based instruction, online collaborative learning and online instructor. The time spent on the web site and the numbers of messages posted to forum were other data sources in this study. The data were statistically analyzed. The quantitative data showed that the students&rsquo / perceptions about web-based instruction and online instructor were positive, but online collaborative learning perceptions are about neutral. Beside the research questions, some design considerations in the blended learning case were presented. The study results may be used in evaluation of the blended learning environment for the instructor and for the department, may show a direction in the future design of the course.

The purpose of the study was to examine elements which affected students' team trust building in an online collaborative learning team and relationships among these elements. The setting of this study was a graduate-level online course on Computer Supported Collaborative Learning (CSCL) in which all course activities were conducted collaboratively through online communications. Data were collected from multiple sources including interviews which were audio taped, transcripts of students' self-reflective journals, transcripts of messages on the asynchronous web conferencing system, transcripts of messages on the synchronous web conferencing system, and the researcher's reflective journals. Data were analyzed using the coding procedures for developing grounded theory proposed by Strauss and Corbin (1998). Results of the data analysis indicated the influences of CSCL course context including the collaborative nature of the course and the heterogeneity of teams on students' team trust building. Results also indicated the dynamics of team trust building. Four different components of team trust building, which were initial team trust, contributors, dimensions, and consequences of team trust, influenced one another. Students’ initial team trust influenced the contributors to team trust which were students' competence, reliability, online communication, and caring. In addition, these contributors influenced the dimensions of team trust such as task performance trust and interpersonal trust. Once students built trust in their teams, they could develop collaborative knowledge building and a sense of community which were the consequences of team trust. The consequences of students’ team trust, in turn, influenced the contributors to team trust. Understanding the construct of team trust may help not only instructors in their design and guidance of successful online collaborative learning teams, but also students in various online collaborative learning teams. In addition, the results of this study may help instructors and researchers to consider carefully the issues in relation to online team trust building. / text

Distance education has by nature always depended on technology as a vehicle for various media used to facilitate learning. Today as technology has taken centre stage in our lives especially Internet-based technology, distance education continues to grow in its use of state-of-the-art tools and hence the need to effectively adopt these online tools for online education remains inevitable. This study presents an evaluation of the usability of social media blends in e-learning environments. Comprehensive guidelines for improving the usability of social media blends are proposed in order to facilitate learner networks where knowledge can be created that is based on the leaners’ experiences and their peer connections. In this meta-analysis study literature was searched to identify qualitative research articles that discuss social media blends most commonly used in e-learning. The search was done on South African and international academic databases which included SAe-Publications, EbscoHost, ProQuest and Google Scholar, among others. The metadata analysis was conducted following the online collaborative learning theory as a conceptual framework and the findings agreed with previous studies that the use of social media blends still lacks important empirical data. This study recommends a set of phases in designing curriculum for social media use in e-learning. The proposed guidelines should be useful to instructional designers interested in using modern learning theories in e-learning. Since African qualitative research could not be found, further work in this field could involve qualitative studies on the use of e-learning in African institutions. / Curriculum and Instructional Studies / M. Ed. (Open and Distance Learning)

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