Collaborative Online Learning with VR Video: Roles of Collaborative Tools and Shared Video Control

Document Title

Collaborative Online Learning with VR Video: Roles of Collaborative Tools and Shared Video Control

Document Information

• Subject Area: Virtual Reality (VR), Online Learning, and Collaborative Learning
• Keywords: Virtual Reality (VR), Educational VR, Collaborative Learning, 360-degree Video, Social VR

Research Background and Issues

• Identified Problems or Challenges:

  • 360-degree VR video is a cost-effective tool for creating immersive digital experiences, valued for its flexibility and adaptability. However, existing VR video systems are primarily designed for individual experiences and provide limited support for collaborative learning.
  • There is a lack of empirical research on the design and application effects of VR video in distributed collaborative learning.
  • The absence of collaboration during video viewing may weaken the learning experience.

• Significance:

  • In the post-pandemic era, online learning has become the norm, making it highly relevant to explore how VR video can be effectively utilized to enhance learning experiences.
  • Collaborative learning has been proven to increase learners' intrinsic motivation and cognitive outcomes, but how to achieve collaboration within VR video remains underexplored.

• Research Motivation and Related Work:

  • Existing research has demonstrated the positive effects of immersive environments and social interaction on education, but traditional video-based learning (VBL) suffers from "isolation" and a lack of interaction.
  • The Distributed Collaborative Video Viewing (DCVV) model has been shown to improve engagement, but it has mostly been applied to traditional videos and not effectively adapted for educational VR videos.

Solution

• Method or Solution:

  • This study designed and implemented two new collaborative VR video modes:

    1. Non-sync Mode: Allows individual control over the timeline.
    2. Sync Mode: Uses shared timeline control, requiring all users to synchronize playback progress.

  • Compared the educational effects of these two modes with traditional technology (Basic Mode).

  • Each mode was combined with a "post-video discussion platform," including traditional platforms (Zoom and Google Slides) and an embedded VR discussion room.

• Innovations:

  • For the first time, this study integrates and evaluates distributed learning experiences with VR video in an educational context.
  • Introduced new tools such as real-time in-video note-taking, spatialized voice chat, and dynamic cursors to enhance VR collaboration.

• Implementation Steps:

  • Developed three VR video viewing systems corresponding to different modes:
    • Basic Mode: Utilizes a traditional VR player, supported by pen-and-paper and Zoom/Google Slides platforms.
    • Non-sync Mode: Provides asynchronous individual video control along with built-in virtual environment collaboration features.
    • Sync Mode: Implements fully synchronized VR video playback, where members jointly control video progress, enhanced by shared cursors and other features.
  • Development logic was based on Unity and the Oculus Quest VR platform, supporting multi-user interaction.

Research Outcomes

• Specific Results:

  • Compared to traditional methods (Basic Mode), collaborative VR video modes (Non-sync and Sync) showed significant improvements in:
    • Higher visual information retention (significant improvement in visual knowledge acquisition).
    • Better collaborative experience (especially in Sync Mode).
    • Stronger sense of social presence.
  • However, the traditional mode performed better in auditory knowledge retention.

• Advantages over Existing Solutions:

  • Sync Mode effectively addressed shared context issues in real-time multi-user collaboration.
  • Non-sync Mode enhanced collaboration while maintaining flexible learning pacing.

• Experimental or Evaluation Results:

  • A total of 54 university students participated in the experiment. Comparative analysis of the three modes revealed:
    • Sync Mode scored significantly higher in collaboration and social presence ratings compared to other modes.
    • Non-sync Mode excelled in personalized learning pace compared to Sync Mode.
    • Basic Mode performed better in auditory memory but scored lower on other metrics compared to collaborative VR modes.
  • The experiment further highlighted the tension between flexible learning pacing and collaborative needs, as well as the varying efficiency and user experience of tools (e.g., drawing and view sharing) depending on the context of use.

• Limitations and Future Directions:

  • The experiment simulated remote learning scenarios in a laboratory setting, which may limit ecological validity.
  • Some system features, such as the note-taking functionality, were not intuitive enough and could benefit from improved interaction design.
  • The task duration was relatively short; future studies should extend to longer tasks to validate the tools' actual usability and effectiveness.
  • Future research should explore collaborative effects in more complex learning content and task scenarios, as well as the role of instructors in collaborative modes.