Purpose: To understand the process of an international doctoral physical education teacher education instructor instituting change during one semester of teaching a university course in the United States. Method: Data included reflexive journal entries, recordings of peer debriefing meetings with a critical friend, informal WhatsApp messages, and anonymous feedback from students. Data were analyzed through thematic analysis. Results: The three main themes were (a) action research as a tool for change, (b) the challenges of the first year as a doctoral physical education teacher education instructor, and (c) the power of reflection. We discuss the main challenges the first author faced and the complexities of the process of developing her pedagogical philosophies in teaching higher education for the first time in a new culture. Conclusions: Action research served as a tool to overcome challenges, develop confidence, and autonomy. The support system provided by her advisors was the main asset for achieving pedagogical change.

目的：了解一位国际博士体育教师教育导师在美国教授大学课程的一个学期期间进行变革的过程。方法：数据包括反思日记、与批评朋友的同伴汇报会议的录音、非正式的 WhatsApp 消息以及学生的匿名反馈。通过主题分析对数据进行分析。结果：三个主题是（a）行动研究作为变革的工具，（b）作为博士体育教师教育讲师第一年的挑战，以及（c）反思的力量。我们讨论了第一作者所面临的主要挑战，以及她在新文化中首次教授高等教育时发展其教学理念的过程的复杂性。结论：行动研究是克服挑战、培养信心和自主性的工具。她的顾问提供的支持系统是实现教学变革的主要资产。