摘要：This study aims to determine the effect of microteaching guided by an expert secondary English teacher on pre-service English teachers PCK, focusing on the changes before and after expert-guided microteaching. The equivalent time-series design involves a single-group, repeatedly assessed, with the treatment introduced between the measurements. Expert-guided microteaching significantly affects pre-service English teachers’ PCK and triggers them to know what to teach and how to teach for students.
