@article {1255, title = {IMPROVING SECONDARY SCHOOL BIOLOGY TEACHERS{\textquoteright} TOPIC-SPECIFIC PEDAGOGICAL CONTENT KNOWLEDGE: EVIDENCE FROM LESSON STUDIES}, journal = {Journal of Baltic Science Education}, volume = {22}, year = {2023}, month = {February/2023}, pages = {Continuous}, type = {Original article}, chapter = {20-36}, abstract = {Since pedagogical content knowledge (PCK) influences the teaching-learning process, it has dominated research on teacher effectiveness. This case study explored teachers{\textquoteright} enacted topic-specific PCK (TSPCK) during the biology lesson study stages: planning, teaching, and reflecting. The enacted TSPCK in two video-recorded research lessons was analysed qualitatively. The results showed that the teacher enacted both high-order and low-order pedagogical actions in the enactment of the TSPCK on eight themes, namely: teaching strategies, classroom interactions, representations, curricular saliency, conceptual teaching strategies, students{\textquoteright} prior knowledge and misconceptions, and what makes teaching or learning difficult. The results also show that the teachers{\textquoteright} collective planned TSPCK was more developed than their personal TSPCK, indicating that participation in the lesson study improved the teachers{\textquoteright} TSPCK. The study is important as it shows how teachers enact their personal and collective TSPCK in respiration. It also demonstrates the potential of lesson study to improve teachers{\textquoteright} PCK through collaborative planning and reflection on taught lessons. The study recommends using lesson study to improve teachers{\textquoteright} enacted TSPCK in respiration, and biology as a whole. }, keywords = {enacted pedagogical content knowledge (ePCK), lesson study, respiration, secondary school, topic-specific pedagogical content knowledge (TSPCK)}, issn = {1648-3898}, doi = {https://doi.org/10.33225/jbse/23.22.20}, url = {https://oaji.net/articles/2023/987-1676960436.pdf}, author = {Thumah Mapulanga and Yaw Ameyaw and Gilbert Nshogoza and Elton Sinyangwe} }