This design-based study was the first empirical investigation of a new model of learning and instruction called Knowledge Community and Inquiry (KCI). In KCI, students are engaged as a learning community as they work on scaffolded inquiry activities that target specific science learning objectives. Although community-oriented approaches have been successful at the elementary level, there has been relatively little uptake of such methods at the secondary school level – particularly in science. The pedagogical framework of KCI addresses the challenges of community models by blending established inquiry based approaches with community-oriented pedagogy. This dissertation tested the validity of KCI by designing, implementing, and empirically evaluating a curriculum based on the KCI model. This was achieved through curriculum trials involving two separate cohorts of grade-ten biology students (n = 102; n = 112). The first implementation consisted of a two-week physiology lesson that engaged students in co-authoring wiki artifacts about human system diseases, which students then used as a resource for solving medical case studies. The second implementation, an eight-week lesson on Canada's biodiversity, was a deeper application of the model, and focused on students' collaborative processes during the construction of their wiki-based knowledge repository. In both cases, the curriculum was evaluated according to its design, enactment, and learning outputs, as evidenced by students' knowledge artifacts and performance on the final exam. Technology scaffolds ensured that students focused on the physiology and biodiversity science curriculum expectations. Analyses of the data revealed that KCI engaged students in collaborative learning processes that were characteristic of a knowledge community. Additionally, final exam scores demonstrated increased learning performance when compared to those from previous years where students did not participate in KCI. The findings from this research provide the first empirical support for KCI, and demonstrate its potential for engaging secondary science students in the kinds of collaborative inquiry processes of authentic knowledge communities. This dissertation provides insight into the conditions necessary for such engagement, and contributes design recommendations for blending knowledge community and inquiry in secondary school science curriculum.

Social digital gaming is an explosive phenomenon where youth and adults are engaged in inquiry for the sake of fun. The complexity of learning evidenced in social digital games is attracting the attention of educators. Martian Boneyards is a proof-of-concept game designed to study how a community of voluntary gamers can be enticed to engage in sustained, high-quality scientific inquiry. Science educators and game designers worked together to create an educational game with the polish and intrigue of a professional-level game, striving to attract a new audience to scientific inquiry. Martian Boneyards took place in the high-definition, massively multiplayer online environment, Blue Mars, where players spent an average of 30 hours in the game over the 4-month implementation period, with some exceeding 200 hours. Most of the players’ time was spent in scientific inquiry activities and about 30% of the players’ in-game interactions were in the analysis and theory-building phases of inquiry. Female players conducted most of the inquiry, in particular analysis and theory building. The quality of scientific inquiry processes, which included extensive information gathering by players, and the resulting content were judged to be very good by a team of independent scientists. This research suggests that a compelling storyline, a highly aesthetic environment, and the emergent social bonds among players and between players and the characters played by designers were all responsible for sustaining high quality inquiry among gamers in this free-choice experience. The gaming environment developed for Martian Boneyards is seen as an evolving ecosystem with interactions among design, players’ activity, and players’ progress.

This dissertation uses a multi-method approach to examine the role of online communities as a source of peer-to-peer supportive care for breast cancer survivors. A collection of four studies is presented. Study 1) A systematic search of the Internet identified 111 active online communities for breast cancer survivors with extensive archives of personal health experiences (one third had over 100,000 posts each as of 2010-10-26). More than one-third (36.0%) were initiated by breast cancer survivors or loved ones, and more than two-thirds (69.5%) were maintained with little or no professional input. Study 2) An analysis of Facebook (www.Facebook.com) identified 620 public breast cancer groups containing a total of 1,090,397 members as of 2008-11-23. The majority of groups were created for fundraising and awareness purposes (92.6%), rather than supportive care (7.4%). Study 3) One hundred breast cancer survivors, known to provide peer support were surveyed on their supportive care needs and use of online communities. Two-thirds (68.6%) of the 73 respondents reported at least one unmet need, most frequently (30 to 40%) concerning sexual problems, stress, survivor identity, fear of recurrence, and ongoing symptoms or side effects. About one-third (31.5%) used online communities predominantly during and while recovering from treatment. Reasons for non-use included lack of need, self-efficacy, trust and awareness. Study 4) Twelve breast cancer survivors who participated in the previous study were interviewed on how and why they used online communities. Unmet needs drove use, particularly during periods of stress, uncertainty or insufficient local support. Online communities served as a unique supportive care resource due to their quality of information, reassurance from similar others, availability, anonymity, and limited commitment. Social support, technology adoption and health behaviour theories help to explain use. Online communities have the potential to fill gaps in health care services by addressing the supportive care needs of breast cancer survivors in a way that may not be available elsewhere, and survivors may play an increasingly important role as care providers. Future research must focus on overcoming barriers to use, and identifying factors that enhance their effectiveness among diverse groups.

To help circumvent reading disability (RD) decoding difficulty, Text-To-Speech (TTS) software can be used to present written language audibly. Although TTS software is currently being used to help RD students, there is a lack of empirically supported literature to inform developers and users of TTS software on best practices. This dissertation investigated two methods to determine whether they increase the effectiveness of TTS for RD and typically-developing students. The first method compared low and high quality TTS voices in regards to understanding. TTS voice quality was identified by having 40 university students listen to and rate the quality of 10 commonly used TTS voices and 2 human voices. Three voices were chosen for the subsequent study based on the ratings; one low quality TTS, one high quality TTS, and one natural voice (Microsoft Mary, AT&T Crystal, and Susan, respectively). Understanding was assessed with tests of intelligibility and comprehensibility. Forty-five grade 6 to 8 students who were identified as having a RD were compared to same-age typically-developing peers. Results showed high quality TTS and natural voice were more intelligible than the low quality TTS voice, and high quality TTS voice resulted in higher comprehensibility scores than low quality TTS and natural voice. The second method investigated whether it is possible to increase a student’s comprehension when using TTS by modifying the presentation style of the TTS voice. The presentation style was manipulated in two ways: varying the speed at which the TTS presented the materials (120, 150, 180 words per minute) and the presence of pauses varied (no pauses inserted, random pauses inserted, or 500 millisecond pauses at the end of noun phrases). Due to a floor effect on the comprehension of the texts the expected results were not obtained. A follow up analysis compared the participants’ prosodic sensitivity skills based on whether they had a specific language impairment, (SLI) a reading impairment (RI), or were typically-developing. Results suggested that SLI has significantly less auditory working memory then RI impacting their auditory processing. Recommendations for future research and the use of TTS based on different learning profiles are provided.

The purpose of this study was to examine the relative effectiveness of three-dimensional visualization techniques for learning about protein conformation and molecular motion in association with a ligand and receptor binding event. Increasingly complex versions of the same binding event were depicted in each of four animated treatments. Students (n = 131) were tested at three time points, and over both the short and longer term, the most complex of the four animated treatments was the most successful at fostering students’ understanding of the events depicted. A follow-up study including eight biology students was conducted to gain greater insight into the students’ underlying thought processes and better characterize their understanding of the animated representations. Analysis of verbal reports and eye tracking data suggest that students are able to attend to the same narrative elements regardless of the level of complexity depicted in each animation. Analysis of verbal protocol data revealed a positive correlation between the number of explanatory statements expressed by participants and the complexity of the animation viewed. As well, prior knowledge was positively correlated with the number of explanatory statements contained in each protocol. Overall, students demonstrated an understanding of protein conformation and molecular crowding. However results suggest that students have difficulty understanding and associating randomness with molecular events. The verbal reports contained several instances of students’ attaching agency to protein and ligand, anthropomorphizing their movements and subsequent binding. Ordinarily cellular events, owing to their sheer complexity, are depicted in a highly schematized, simplified form. The results of this study would suggest that under select circumstances this may not be the most appropriate approach to depicting dynamic events. However additional attention must be given to exploring techniques that can satisfactorily balance the random nature of molecular events with narrative explanations of these processes.

Research studies demonstrate that L2 learners participate more equally when using synchronous computer mediated communication (CMC). However, most of these studies have involved adult students only, in college or university settings. Few have explored the use of synchronous CMC with elementary school learners. Thus, this case study explored the participation of Grade 8 native speakers and English language learners as they interacted in the online environment. It examined the number of turns taken by each participant, the discourse functions used, as well as participants’ perceptions of communicating online. This was accomplished through collection of chat transcripts, questionnaires and semi-structured interviews. It was found that native speakers tended to take more turns in online discussions. Also, responses and questions were the discourse functions that were used most by participants in this research. Finally, the students viewed this mode of communication favourably, and believed that it aided their communication with one another.

Social Software is potentially a disruptive technology in Higher Education, because it proposes changing the instructional paradigm from a formal, structured curriculum based model to a more open, informal, borderless learning model. The purpose of this study was to explore this potential in the context of participating Net Generation students in a technology oriented, laptop based university located in southern Ontario. Net Generation students, are broadly characterized as the first digitally native generation who grew up with information and communication technologies, and that they demand more technology in all aspects of their lives. The study was interested in the efficacy and pedagogical impact of social software technologies to support students’ learning experience. The review of the literature highlighted the paucity of empirical studies examining the utility and value of these software in the higher education environment. This dissertation explored the participating students’ views and attitudes regarding SSW, their behaviours regarding the adoption of these tools in the learning environment, and the effects of SSW in their performance as measured by information literacy test scores and students’ perceptions of their learning. The study used a quantitative method, employing questionnaires and a quasi-experimental design to answer the research questions. A total of eighty students participated, 24 in the treatment group using SSW during the instruction phase, and 56 in the control group, using a Learning Management System (LMS). A pre-test showed a relatively moderate use of SSW technologies among the participants, with the exception of social networking technologies – whose adoption was almost universal. Academic use of these tools was even less pronounced in the pre-test phase. Students showed moderate willingness to employ SSW for the support of their learning. Barriers to the adoption of these technologies were discussed. Study findings could not demonstrate that the use of SSW would lead to different information literacy scores, compared with more established technologies such as the LMS. However, SSW use also formed an undercurrent of student behaviour, and in the aggregate SSW use was associated with different outcomes. The role of factors contributing to these differences, and recommendations for future research are discussed.

Technological enhancements and economic gains are the dominant focus of normalized research of workplace e-learning programs. This is not, however, equivalent to discovering whether or not workers are actually experiencing any socially and culturally meaningful learning from workplace e-learning programs. This thesis advocates socio-cultural inclusiveness research on workplace e-learning programs. Socio-cultural inclusiveness research takes into account the learning needs of workers with respect to their various social differences and culturally unique identities that affect, mediate, and interpret workers’ learning. The intent is to transform perceptions of workplace e-learning programs, from technological artefact to ideational discourses. Discourse Analysis is applied as a socio-cultural approach to ten passages that have been extracted from ten examples of normalized research published over the past decade. This is done to explore whether a normalizing paradigm is noticeable and how such a normalizing paradigm might lead workplace e-learning programs to socially marginalize and culturally exclude workers. To discursively analyze the passages and identify a normalizing paradigm, this thesis applies ‘Discourse model’ as ‘tool of inquiry’. Discourse models reveal heuristic, taken-for-granted assumptions about what is socially normal and culturally representative in talk and text. The normalizing paradigm that does emerge from this cursory analysis, constructs normalized e-learning as the conflation three assumptions: technological proficiency; economic efficiency; and, training consistency. This normalizing paradigm socially justifies workers in the workplace through normalized e-learning. To promote democratized counter discourses, this thesis puts forward critical perspectives, taxonomies, and frameworks that enable praxis of socio-cultural inclusiveness research. This thesis relies on three critical perspectives to discursively resist three formal biases inherent in normalized e-learning that emerge from this normalizing paradigm. Using a critical pedagogy perspective, this thesis reflects on the formal bias of ‘standardization’ and its alignment with ‘training consistency’ to discuss ‘worker-worker’ alienation from ‘pedagogical standardization’. Taking a critical culture perspective, thesis hones in on the formal bias of ‘categorization’ and its alignment with ‘economic efficiency’ to elaborate ‘worker-work’ alienation from ‘cultural categorization’. With a critical history perspective, this thesis focuses on the formal bias of ‘operationalization’ and its alignment with ‘technological proficiency’ to expand on ‘worker-identity’ alienation from ‘ahistorical operationalization’.

This research examines on the importance of considering context as design criteria for technology integration and technology design, and in particular, what that means for teacher education. While others (Fishman, Marx, Blumenfeld, Krajcik, & Soloway, 2004) have broadly considered context as a factor in supporting technology integration, this current research uses a Human-Tech framework (Vicente, 2003) to identify and examine the implications of individual contextual constraints for the design of technology-enhanced learning; therefore, the researcher begins to answer the important - and arguably unexplored - question of how the complexities of varying contexts ought to be used to inform design. Broadly, this design research study explores the impact of using a Human-Tech framework for understanding technology integration in education and specifically, to inform the design of technology-enhanced learning practices in the context of teacher education. Further, the research reports on the impact of an open online research support forum - designed using a Human-Tech framework - on the experiences of teacher candidates while carrying out classroom-based research as part of their initial teacher education program. Overall, results of the research study suggest that using a Human-Tech framework for understanding technology integration was helpful in supporting a broader and more systematic approach to designing for more effective use of technology in the context of teacher education. In terms of the design of the open online research support forum, findings suggest that there were key Organizational constraints that likely continued to have a limiting impact on the innovations across the two-year design study. Therefore, this research also points to future technology-specific and non technology-specific design strategies which may have implications for technology integration, and fulfilling the functional purposes of the program more broadly.

This design-based research study investigates the development of pedagogical content knowledge among nine teacher-participants (N = 9) in three design phases. PCK is a particular type of teacher knowledge that addresses not only the teacher’s understanding of the content to be instructed, but also ways of how to teach that content effectively. This knowledge has been well documented over several decades, and is seen as central to teacher expertise. However, its actual development has been difficult for researchers to investigate. This study offers a detailed perspective on how teachers developed PCK with their engagement in lesson planning and enactment of a project-based technology-enhanced lesson. The study includes two specific interventions designed to enhance teachers’ development of PCK: (1) scaffolded reflection that occurs throughout the practices; and (2) peer-exchange of lesson plans, enactment ideas, and completed reflections. The findings demonstrate that teachers improve their planning and enactment of project-based technology-enhanced lessons with scaffolded reflection and peer exchange. Positive correlations were seen between teachers’ engagement in the reflections and the quality of their lesson planning. Teachers who participated more deeply in the scaffolded reflections were able to understand how their lesson plans and enactment patterns fostered student understanding of relevant science concepts. Positive correlations were also seen between community influence and teacher lesson plans and enactment. Additionally, positive correlations were confirmed between teachers’ level of participation in the peer exchange activities and the quality of their lesson planning and enactments. Teachers who contributed more deeply within the online and face-to-face peer community meetings benefited from the different perspectives of their peers about student learning and the best ways to succeed with project-based instruction. This study allowed some insight into how PCK develops as a result of teachers’ engagement in the complex set of activities that constitute the practices of lesson planning and enactment. The primary implication of this study is that engaging teachers in scaffolded reflections and peer exchange can be a valuable in-service professional development activity. A methodological strength is derived from an approach to coding teachers’ lesson planning and enactment according to an activity systems perspective, drawing on a spectrum of data sources (e.g., wiki-based reflections, planning artefacts, videotaped classroom enactments). Teacher learning—particularly the development of PCK—is recognized as critical in promoting student understanding of science concepts. This dissertation lays out a possible foundation for professional development models that promote effective teacher learning.