TY - JOUR AB - Purpose This study investigated the role of experienced practitioners in promoting pre-service teachers' knowledge construction and social interaction in an online professional learning community.Design/methodology/approach A repeated measures design with control and experimental groups was adopted. Two practitioners supported pre-service teachers in the experimental group to discuss issues around teaching practice. Social network analysis (SNA) and content analysis (CA) were used in the analytical approach.Findings CA revealed that the practitioners increased pre-service teachers' levels of knowledge construction and high-cognitive discourse. SNA showed that the practitioners enhanced pre-service teachers' professional ties. Though collaboration in high-level knowledge building occurred predominantly in peers in the same discipline, the presence of the practitioners facilitated the development of more cross-disciplinary ties in the experimental group.Practical implications The practitioners can be considered as a pedagogical tool to enhance pre-service teachers' engagement in the process of professional learning. This study suggests that in order to enhance the collaboration among pre-service teachers from different departments, the online activity should be designed to enhance interdisciplinary collaboration.Originality/value The study contributes new knowledge about the ways in which practitioners can enhance the collaboration among pre-service teachers in an online PLC. It also provides insight on how to combine CA and SNA, to examine professional learning. VL - 5 IS - 2 SN - 2056-9548 DO - 10.1108/JPCC-10-2019-0027 UR - https://doi.org/10.1108/JPCC-10-2019-0027 AU - Alwafi Enas Mohammad AU - Downey Chris AU - Kinchin Gary PY - 2020 Y1 - 2020/01/01 TI - Promoting pre-service teachers' engagement in an online professional learning community: Support from practitioners T2 - Journal of Professional Capital and Community PB - Emerald Publishing Limited SP - 129 EP - 146 Y2 - 2024/04/23 ER -