Abstract: Organic chemistry is a fundamental course for undergraduate students majoring in clinical disciplines at our university, playing a crucial “bridge” role in their subsequent professional courses. However, organic chemistry is known for its abstract theoretical concepts and numerous knowledge points, making it challenging for students to comprehend and master. In response to the teaching issues encountered in traditional classroom settings, this paper adopts the innovative O-PIRTAS flipped classroom model, integrating the characteristics of organic chemistry education. Taking the specific topic of carboxylic acids as an example, the classroom teaching is restructured with the aim of exploring the application of this model in organic chemistry courses and subsequently improving teaching effectiveness.

Key words: Organic chemistry, O-PIRTAS, Flipped classroom, Teaching reform