Video-based reflection on one's own teaching represents a crucial tool in teacher education. When student teachers reflect on negative classroom events, it elicits “self-focused attention,” which has been associated with more intense negative emotionality. Self-focused attention can be quantitatively captured using first-person singular pronouns (“I,” “me,” “my”) in written reflections by, for instance, student teachers. What is unclear is whether student teachers' use of these first-person singular pronouns in their written reflections is linked to and predicts their negative affective experiences during teaching. For the present study, a fully immersive virtual reality (VR) classroom was implemented in which student teachers taught a lesson, provided written reflections on their teaching, and then taught a second lesson. We measured N = 59 student teachers' self-reported stress and heartrate responses while teaching in the VR classroom and determined the percentage of first-person singular pronouns in their written reflections. Firstly, our results showed that the use of first-person singular pronouns provides incremental information on manual ratings of student teachers' foci in their written reflections. Secondly, student teachers' heartrates during instruction—a measure of physiological stress—were associated with the use of first-person singular pronouns in subsequent written reflections. Thirdly, the use of first-person singular pronouns predicted the increase in physiological stress from the first to the second round of VR teaching. We discuss implications for automated feedback and for designing reflective tasks.

基于视频的教学反思是教师教育的重要工具。当实习教师反思消极的课堂事件时，会引起“自我关注”，这与更强烈的消极情绪有关。例如，学生教师可以在书面反思中使用第一人称单数代词（“我”、“我”、“我的”）来定量捕捉自我关注。目前尚不清楚的是，实习教师在书面反思中使用这些第一人称单数代词是否与他们在教学过程中的负面情感经历有关并预测了他们的负面情感经历。在本研究中，实施了完全身临其境的虚拟现实（VR）课堂，实习教师讲授一堂课，提供对其教学的书面反思，然后讲授第二节课。我们测量了N  = 59 名实习教师在 VR 课堂教学时自我报告的压力和心率反应，并确定了他们书面反思中第一人称单数代词的百分比。首先，我们的结果表明，第一人称单数代词的使用提供了实习教师在书面反思中的焦点手动评分的增量信息。其次，实习教师在教学期间的心率（一种生理压力的衡量标准）与随后的书面反思中第一人称单数代词的使用有关。第三，第一人称单数代词的使用预测了第一轮到第二轮VR教学中生理压力的增加。我们讨论自动反馈和设计反思任务的影响。