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Online collaborative argumentations need instructional support to ensure social interactions and in-depth cognitive engagement. It is known that graphic organizers assist in comprehending information and negotiating meanings for individual and collective tasks. This study intends to compare the effects of different graphic organizers in asynchronous online discussions. Specifically, it investigates three graphic organizers collaboratively constructed by learners, including t-charts, tree charts, and maps. A t-chart is a table that shows two sides of a subject (e.g., pros vs. cons). A tree chart gets a subject to branch out into multiple subtopics, displaying a hierarchy of topics. A map depicts relations of a topic with nodes and links. This study examines the three graphic organizers' impacts on social, cognitive, and affective engagements in online collaborative argumentation. A quasi-experimental study was conducted in an online graduate course where 36 students participated in case-based discussions with a graphic organizer for each group. The results demonstrated that more alternative ideas were generated in t-charts than the other types, which shows varying levels of knowledge construction. In terms of participatory and attitudinal aspects, we did not find a significant difference across the types of graphic organizers. This study suggests the form of a graphic organizer affects how learners construct knowledge in collective work. Affordances of each type of graphic organizer and their applications in online instructional settings were discussed.

The purpose of this paper is to identify the types of students' interaction, as well as their discussion patterns in an online course. The study took place in a large Midwestern University and 17 graduate students participated in the study. The primary data was obtained from students' discussion forum postings. The researchers used both qualitative and quantitative approaches to describe and analyze the types of discussion and interaction. The researchers developed a coding scheme based on theories and models. The findings of the study reveal that computer mediated communication (CMC) has a positive potential to increase interaction among students. Furthermore, the findings confirm the effectiveness of asynchronous online environment in supporting online learning community. Participants were engaged in social interaction to build their knowledge. This study recommends two-way interaction for achieving sustainable discussion and promoting higher level of interaction.

The purpose of this study was to investigate the types of problem-solving behaviors and their effects on solution quality in an online collaborative learning context. A total of 12 preservice teachers enrolled in a computer education course participated in the study. Students in pairs, randomly assigned by the instructor, carried out a problem-solving task and then changed partners for subsequent tasks. The problem-solving processes of 25 pairings of students were analyzed. Data on their problem-solving behaviors, the quality of their solutions, and their domain knowledge were collected. Results revealed that students who demonstrated more solution-oriented behaviors led others to better solutions while collaborating. In contrast, students who had difficulty in understanding problems demonstrated more problem-oriented behaviors. The solution-oriented students also gained better domain knowledge at the end, compared with the problem-oriented ones. The effects of the student's interactions during the problem-solving process were discussed.

The current study examined the effects of different types of instructor comments on student engagement in an online discussion. In particular, this study examined three comment types: (1) praise-oriented comments, agreeing with students' initial messages and recapping their ideas, (2) elaboration-encouraging comments, requesting elaboration on the initial messages, and (3) perspective-widening comments, suggesting different or thought-provoking opinions responding to the initial messages. Seventeen graduate students enrolled in an online course were recruited. A content analysis was employed to evaluate the levels of knowledge construction. Interactivity was measured by the number of posts and idea units. The findings revealed that perspective-widening comments facilitated students' evaluation on the peer postings and brought up diverse perspectives, contributing to knowledge construction. While elaboration-encouraging comments led to high interactivity among students, praise-oriented comments had no significant effect on the frequency of interactivity.

The current experimental study examined the effects of graphic organizers in a collaborative learning context where students constructed knowledge during online discussions. As the results could vary depending on how students interacted with the graphic organizers, this study compared two different approaches: instructor-provided versus student-generated graphic organizers. Thus, the purpose of this study was to investigate the effects of receiving or generating graphic organizers on students' engagement in online discussions. Thirty-six graduate students enrolled in an online graduate course participated in the study. While analyzing an instructional design case, students were asked to discuss design issues in a randomly assigned group. There were three conditions: control condition without graphic organizers, instructor-provided, and student-generated graphic organizers. Major findings revealed that both generating and receiving graphic organizers facilitated students' higher levels of cognitive engagement, and encouraged students to consider alternative views during the discussions. Without the graphic organizer, students tended to simply summarize previous messages or raise new issues rather than elaborating on previous topics. There was a significant finding regarding the ways of interacting graphic organizers. Students discussed more topics when they were given instructor's graphic organizers rather than when they were asked to generate them.

Collaboration skills have become a critical competency for health care providers. This study aims to understand how individual student characteristics and group process in the early phase of group development are associated with students' perception of their overall collaborative learning experience. The study was conducted in two consecutive semesters with a total of 86 health sciences undergraduate students participating. The results show that quality communication in the beginning phase of group development and health-care work experiences are two major factors associated with students' perception of overall collaborative learning. The findings confirm the importance of the initial phase of collaboration. Faculty should deliberately design collaborative learning experiences that offer orientation in enhancing the interactions among group members and allow quality communication to proliferate.

This study examined the types of learning behaviors students demonstrated while performing inquiry tasks. It also explored the relationship between the learning behaviors and students' domain knowledge. We observed fourteen students in five groups during a ninth-grade biology course. Three types of learning behaviors (inquiry, collaborative, and minimally productive behaviors) were identified and time on each type was measured. The results suggest that students demonstrated different patterns according to the types of learning behaviors. Correlation analysis revealed that learning outcomes had a strong positive correlation with the inquiry behaviors but a strong negative correlation with the minimally productive behaviors. The results suggest that attention should be paid to facilitate the more meaningful inquiry behaviors while reducing minimally productive behaviors.

An online discussion facilitates students' higher order thinking in online classes, especially when adopted with the instructor's guidance. The current experimental study examined the effects of two different discussion representation tools (social and cognitive diagrams) on students' discussion behaviors. The social diagram emphasized interactivity of participants by illustrating who posted messages and who replied. The cognitive diagram described how discussion topic evolved by summarizing main topics discussed. Thirteen graduate students enrolled in an online graduate course participated in the study. While analyzing five instructional cases, students were asked to discuss each case in a group that the instructor assigned randomly. For each case, one group was provided with the social diagram whereas the other with the cognitive diagram. Major findings revealed both tools facilitated online discussion activities as the instructor intended: the social diagram turned out to promote socially desirable responses while the cognitive diagram produced more cognitively desirable responses. Further studies on how the two types of discussion diagrams can be integrated in online discussions will be needed.