Although some middle school teachers integrate social media platforms into instruction, they generally use traditional and teacher-centered strategies rather than those that are innovative and student-centered. A gap exists in the literature on how teachers could use social media tools such as Edmodo to engage middle school students for innovative online collaboration. This qualitative case study explored the factors that contributed to the acceptance and use of Edmodo by middle school teachers in a Mid-Atlantic urban school district. Specifically, the research explored how teachers leveraged Edmodo to initiate and sustain networked collaboration with their students. The Unified Theory of Acceptance and Use of Technology 2 model, sociocultural development theory, and connectivism supported the conceptual framework. A criterion selection process was used to select 6 middle school teachers as participants. Data sources included 6 semi structured interviews, a focus group of 3 educational technology leaders, and school district documents. Data were analyzed using a priori codes based on the literature review and conceptual framework. Themes that emerged from the analysis included the following: acceptance and use of Edmodo as a communication platform, increased support of students' organizational needs, enhancement of professional practice, initiation of networked collaboration, barriers and challenges in networked collaboration, and sustained networked collaboration. This research may contribute to positive social change by informing educational leaders and teachers on how to best leverage social media tools such as Edmodo in the middle school classroom to actively engage students in online collaboration, fostering a more student-centered learning environment.

Interaction is a core element in the design of blended and distance learning environments. The importance of understanding these interactions and what might increase effectiveness of such interactions in education is paramount for meaningful learning. This dissertation consists of two qualitative case studies designed to provide a rich, descriptive look at interactions in a high school distance/blended-learning context in the home-study and technology-meditated seminary program of The Church of Jesus Christ of Latter-day Saints. In the study article, Moore's (1989) interaction framework was used as a lens for understanding the learner experience. Thematic narratives were used to highlight themes related to students' perceived learning gains from learner-content interaction and their hesitancy to engage in learner-learner and learner-instructor interactions if they had not met personally. In the second study, Garrison's (2007) Community of Inquiry framework was used to understand the impact that teacher decisions, other than the selection of content, had on the cognitive and social climate of the learning experience. This study describes how a teacher's facilitation of social interaction influences the course learning outcomes. The results highlight the teacher's role in providing the educational and social climate needed to foster learner interactions. This study noted that when the teachers gave learners the opportunity to interact in a live setting, it appeared to foster the relationships needed to interact online. The narratives also highlight how a teacher helped learners interact with one another around content online.