Abstract
While synchronous video conferencing platforms have become pervasive in remote K-12 education, orchestrating structured, active collaborative learning within these virtual spaces remains a formidable pedagogical challenge. This study investigates the optimization of collaborative learning outcomes through the systematic integration of synchronous video conferencing affordances with the Jigsaw cooperative learning strategy. Employing a three-cycle Design-Based Research (DBR) framework over a 14-week period, we collaborated with four middle school STEM educators and 142 students (grades 7–8) across distinct remote learning units. The iterative interventions focused on resolving communicative friction, group accountability deficits, and cognitive overload during breakout transitions by implementing structured digital artifact scaffolding, automated role orchestration, and synchronous co-construction dashboards. Mixed-methods data—encompassing pre- and post-instructional conceptual assessments, Community of Inquiry (CoI) survey measures, video-recorded interaction analytics, and semi-structured retrospective interviews—were synthesized to evaluate learning effectiveness and social-cognitive dynamics. Quantitative findings revealed statistically significant improvements in domain-specific conceptual acquisition (Cycle 3 post-test gains: Cohen’s d = 0.84) and marked elevations in perceived social presence and cognitive presence across iterative cycles. Qualitative analyses illuminated how visually bounded digital workspaces and transparent interdependence mechanisms mitigated off-task behavior and cognitive load during Jigsaw expert-to-home group transitions. The paper concludes with four evidence-based design principles for instructional designers and educators seeking to foster high-order collaborative inquiry in remote K-12 learning environments.
