Coding Together: On Co-located and Remote Collaboration between Children with Mixed-Visual Abilities

Title of the Paper

Coding Together: On Co-located and Remote Collaboration between Children with Mixed-Visual Abilities

Paper Information

• Domain: Human-Computer Interaction, Educational Technology, Inclusive Design
• Keywords: Children with visual impairments, mixed-visual abilities, computational thinking, collaboration, tangible interaction, robotics, accessibility

Research Background and Issues

1. Background Issues:

   • Computational Thinking (CT) activities hold significant educational value, such as fostering logical thinking and creativity.
   • Traditional accessible programming tools provide insufficient support for children with visual impairments, particularly in the context of remote collaboration.
   • With the rising demand for remote learning, comparing co-located and remote collaboration methods for children with mixed-visual abilities has become a critical research direction.

2. Research Challenges:

   • Collaborative work in mixed-visual environments presents several challenges, including workspace visibility, communication, and awareness of task progress.
   • Conventional collaborative tools often fail to adequately address the interaction needs of children with varying visual abilities.

3. Research Objectives:

   • To explore differences in task performance, social behaviors, and user experiences of children in remote and co-located collaborative environments.
   • To design and evaluate a programming tool based on robotics and tangible interaction, advancing inclusive educational activities.

Solutions

1. Methods and Design:

   • A learning tool based on tangible interaction and robotic programming was designed, inspired by the puzzle game Sokoban.
   • The system comprises a LEGO map, coding instruction modules (with 3D-printed tactile markers), an Ozobot robot, and a magic box (for instruction scanning and transmission).

2. Innovations:

   • Introduction of asynchronous and complementary roles: the Map Explorer is responsible for path planning and box-pushing, while the Instruction Coordinator programs the robot using coding modules.
   • In the default remote setting, equal spatial access is achieved through audio interaction, while the co-located setting provides direct spatial awareness, highlighting the contrast between the two environments.

3. Key Technologies:

   • Coding modules with high-contrast colors and tactile markers to support children with visual impairments.
   • Robot feedback and audio prompt mechanisms to provide multimodal information delivery.
   • A client-server network architecture to enable remote transmission of instructions between roles.

Research Findings

1. Key Findings:

   • Computational Thinking Skills: All children successfully applied CT concepts such as data collection, algorithm design, and problem decomposition in both remote and co-located environments.
   • Collaboration Differences:
     • Co-located environments fostered more active collaboration, with children more likely to offer help and achieve goals quickly, though role dominance behaviors were observed.
     • Remote environments featured more frequent verbal communication, relying heavily on spoken coordination but with reduced workspace awareness.
   • User Experience: Children preferred co-located collaboration (greater engagement and autonomy), while remote settings were more balanced, reducing the potential for visual exploitation.

2. Experimental and Quantitative Results:

   • Task completion time: No significant difference between remote and co-located settings, but co-located scenarios exhibited higher overall efficiency due to more collaborative behaviors.
   • Communication behaviors: An average of 15 verbal exchanges per child in remote collaboration compared to only 3 in co-located collaboration.
   • Positive collaborative behaviors: Significantly higher in co-located collaboration (84 instances vs. 16 instances).

3. Limitations:

   • Insufficient sharing of workspace status during child interactions led to individualized task handling in some cases.
   • Technical issues in the remote setting (e.g., network latency and device connectivity problems) impacted task efficiency.

4. Future Directions:

   • Explore enhanced audio feedback to improve spatial status awareness in remote environments.
   • Optimize task design to enable more parallelized task segments, reducing waiting times.
   • Expand role designs to offer diverse dynamics, catering to the individual needs of different children.
   • Incorporate more complex game elements to further develop computational thinking training potential.

Conclusion

This study addresses the research gap in remote collaboration environments for children with mixed-visual abilities participating in computational thinking activities. The proposed robotic tangible interaction tool holds significant implications for promoting inclusive educational design, while providing foundational data and design recommendations for future tool development and practice.