"It Feels Like I am Talking into a Void": Understanding Interaction Gaps in Synchronous Online Classrooms

Title of the Paper

“It Feels Like I am Talking into a Void”: Understanding Interaction Gaps in Synchronous Online Classrooms

Paper Information

• Subject Area: Online education, educational technology, interaction in remote teaching
• Keywords: online education, synchronous remote learning, classroom interaction, students, teachers, sense of community, chat functionality, video sharing, engagement, feedback
• Source: CHI Conference on Human Factors in Computing Systems (CHI ’21), May 8–13, 2021, Yokohama, Japan. ACM
• Authors: Matin Yarmand, Jaemarie Solyst, Scott Klemmer, Nadir Weibel

Research Background and Issues

• Issues and Challenges:

  1. In synchronous online classrooms, students can freely choose whether to use video and audio features. Most students tend to turn off their cameras and remain muted, limiting teachers' ability to gauge students' focus and confusion in real-time.
  2. Compared to face-to-face classrooms, online classrooms lack informal interactions between teachers and students, as well as among students, weakening the sense of classroom community.
  3. Online classrooms fail to effectively simulate many social interaction functions of traditional classrooms, leading students to feel isolated and disconnected.

• Research Significance:

  1. During the COVID-19 pandemic, online education rapidly became widespread, but significant gaps remain in educational outcomes and teacher-student interaction experiences.
  2. Understanding these gaps can help design more efficient and human-centered online education systems, improving teaching quality and student satisfaction.

• Research Motivation and Related Work:

  1. Literature indicates that interaction in online classrooms is crucial for learning satisfaction, classroom engagement, and academic performance.
  2. Previous research has often focused on enforced interaction models or specific technologies (e.g., polling, Q&A systems), lacking systematic analysis of contexts where students can choose their interaction modes.
  3. This study aims to fill this research gap by exploring how teachers and students choose interaction methods in a free-choice mode and proposing improvement suggestions.

Solutions

• Methods and Solutions:

  1. Phase One: Conducted interviews with 7 teachers to explore their teaching experiences, interaction challenges, and comparisons with traditional classrooms in synchronous online settings.
  2. Phase Two: Conducted a survey with 102 students across 13 online courses to collect feedback on their classroom participation, interaction behaviors, and online learning environment.

• Key Innovations:

  1. Focused on interaction issues in scenarios where students freely choose video and audio features, yielding profound empirical insights.
  2. Combined multi-perspective analyses from teachers and students to propose a series of design suggestions for optimizing social cues, such as simplifying and aggregating real-time classroom signals.
  3. Suggested enhancing the sense of classroom community through informal communication and group discussions, as well as flexible individual control mechanisms to support diverse interaction needs.

• Implementation Steps and Techniques:

  1. Interview Analysis: Conducted thematic analysis of teachers' statements, summarizing key themes such as "difficulty in reading student engagement and confusion" and "need for aggregated video signals."
  2. Survey: Used Likert scales and open-ended questions to quantify trends in student participation, interaction, and classroom experiences.
  3. Data Analysis: Combined inductive and theory-driven analysis methods to extract major patterns from the data, providing a basis for design recommendations.

Research Findings

• Specific Findings:

  1. Most students prefer to turn off their cameras and microphones, primarily due to:
     • Embarrassment about their appearance.
     • Belief that not sharing video does not affect teaching.
     • Conformity influenced by others not using video.
  2. Chat functionality is widely appreciated by students and considered a lower-pressure, safer way to participate.
  3. Students generally feel a lack of connection with classmates and teachers in online classrooms and express dissatisfaction with the absence of a sense of community.

• Comparison with Existing Solutions and Advantages:

  1. Proposed design suggestions for aggregating and displaying students' engagement and confusion signals to address teachers' difficulty in intuitively understanding classroom dynamics.
  2. Redesigned the weighting and flexibility of video signal sharing mechanisms to protect student privacy while increasing participation willingness.
  3. Highlighted the importance of previously underexplored social interaction designs, such as incorporating "pre-class/post-class informal time" and encouraging group collaboration.

• Experiments and Evaluations:

  1. Teacher interviews confirmed the negative impact of interaction barriers on teaching experiences.
  2. Student surveys clearly reflected the obstacles to video sharing and voice interaction, as well as the potential value of alternative methods such as chat functionality and aggregated signals.

• Limitations and Future Directions:

  1. Data sources were concentrated on courses at research universities, which may not fully reflect the needs of small classrooms or diverse educational backgrounds.
  2. The study primarily focused on interaction issues during class time; future research could explore other forms of interaction outside of class (e.g., emails, office hours).
  3. Suggested further design and testing of more specific course visualization dashboards to optimize the real-time presentation of student participation signals.
  4. Recommended deeper exploration of the specific content of chat functionality to understand types of student interactions and potential needs.

Conclusion

Through in-depth interviews and surveys with teachers and students, this paper systematically reveals interaction barriers in synchronous online classrooms and analyzes the respective needs of students and teachers. Based on the research findings, it proposes various design recommendations to optimize classroom interaction and foster social connections.