Conference Agenda
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01. Professional Learning and Development
Paper From PD to Practice: Impact of Online Group Mentoring on UDL Implementation and Teacher Motivation Independent Researcher, Finland Presenting Author:Sustaining changes in teaching practice after professional development (PD) remains a persistent challenge, particularly for inclusive pedagogies that require teachers to make consequential day-to-day design decisions under real classroom constraints. Although Universal Design for Learning (UDL) offers a framework for inclusive and accessible instructional design, short-course PD may be insufficient to support successful enactment and sustained classroom implementation (Darling-Hammond et al., 2017; Desimone, 2009). Consequently, follow-up support mechanisms are critical. Mentoring, especially when designed as an ongoing, practice-close support structure, is often positioned as a mechanism for sustaining teacher learning beyond short-term PD (Hudson, 2013). In parallel, UDL continues to gain traction as a promising framework for inclusive pedagogy (King-Sears et al., 2023). However, research remains inconclusive regarding the nature and effectiveness of mentoring, and robust evidence on how mentoring contributes specifically to inclusive implementation is still developing (Luong, 2025; Radlick & Mevatne, 2023). Moreover, design-based insights on scalable online mentoring models are still emerging. This study addresses these gaps by examining the added value of an online group mentoring model implemented after a foundational UDL PD course in Turkish public schools, focusing on both implementation outcomes and teachers’ motivational beliefs. RQ1. Do teachers who completed UDL Basic PD plus online group mentoring differ in UDL implementation fidelity scores from those who completed UDL Basic PD only? The study is anchored in (a) UDL as a framework for inclusive instructional design and (b) expectancy–value–cost theory as a motivational lens for teachers’ engagement in PD-related implementation. Expectancy–value–cost distinguishes beliefs about the likelihood of successful enactment (expectancy), perceived importance/utility (task value), and perceived resources required or sacrificed (cost). The study is relevant to European and international PLD systems seeking feasible, scalable mechanisms to support sustained uptake of inclusive pedagogies—particularly as digitally mediated and hybrid PD models are increasingly used to extend learning beyond one-off training. It is expected to inform the design of online group mentoring programs to better support sustained implementation. Methodology, Methods, Research Instruments or Sources Used A convergent parallel mixed-methods design was used, combining a quantitative post-test comparison with qualitative interviews to examine mentoring mechanisms and support the interpretation of results. Quantitative and qualitative strands were analysed separately and integrated during interpretation through triangulation of findings across outcomes and themes. Participants and context Participants were 89 Turkish public school teachers in Istanbul (54 primary school teachers; 35 middle school Turkish language teachers), recruited through convenience sampling within a Ministry-affiliated project. Intervention sequence and group formation All participants completed UDL Basic PD (5 weeks) delivered online through live sessions and asynchronous materials (video content, reflection questions, and lesson analysis). At the end of the PD, teachers indicated whether they wished to continue via a Mentoring Program Preference Form (voluntary continuation), forming mentored and PD-only groups. The online group mentoring program (4 weeks) included structured self-assessment and goal-setting, weekly videos, and realistic teaching scenarios, with ongoing discussion and feedback throughout each week. Quantitative measures and achieved sample sizes UDL Implementation Fidelity Tool: Teachers completed the tool for two separate lessons; complete fidelity data were obtained from 21 mentored and 19 non-mentored teachers (N = 40). Expectancy–Value–Cost for PD Scale: Responses were obtained from 25 mentored and 55 non-mentored teachers (N = 80). Quantitative analysis Parametric tests were used where assumptions were met (UDL fidelity; cost), and Mann–Whitney U tests were used for non-normal distributions (expectancy; task value). Qualitative data and analysis Semi-structured Zoom interviews were conducted with five mentored teachers and analysed using thematic analysis. Conclusions, Expected Outcomes or Findings UDL implementation fidelity Teachers in the mentoring group showed higher mean UDL implementation fidelity (M = 13.64, SD = 2.77) than teachers in the PD-only group (M = 12.24, SD = 3.57); however, the difference was not statistically significant, t(38) = 1.40, p = .17. Expectancy–value–cost Mentored teachers reported significantly higher expectancy for success than PD-only teachers (Mann–Whitney z = −3.45, p = .001). Task value was very high in both groups (means near the scale maximum), suggesting limited room for differentiation. Perceived cost did not differ significantly between groups, t(80) = 1.18, p = .24. Qualitative mechanisms and perceived change Teachers described the UDL Basic PD as “building the basis” for understanding UDL fundamentals, learner variability, and designing for individual differences. They linked mentoring to mechanisms that enabled practical transfer: (a) feedback and reflection, (b) structured self-assessment and goal-setting, (c) realistic scenarios preparing them for classroom contingencies, and (d) colleague interaction and collective learning. Teachers reported shifts toward more student-centred planning, increased attention to learner needs and differences, and strategic use of digital tools, and they described initiating multiple UDL-aligned practices following mentoring. Contribution Overall, the findings suggest that an online group mentoring layer may not yield statistically detectable short-term differences in implementation fidelity, yet it can strengthen teachers’ expectancy for successful enactment—an implementation-relevant motivational condition. The qualitative results highlight mentoring design features that teachers found particularly supportive: scenario-based work anchored in authentic classroom problems, structured reflection through self-assessment/goal-setting, and iterative peer/mentor feedback in an online environment. References Bümen, N. T., & Uslu, Ö. (2020). Öğretmenlerin mesleki gelişiminde Beklenti–Değer–Bedel Ölçeğinin Türkçeye uyarlanması. Gazi Eğitim Fakültesi Dergisi, 40(3), 905–942. https://doi.org/10.17152/gefad.787116 Darling-Hammond, L., Hyler, M. E., & Gardner, M. (2017). Effective teacher professional development. Learning Policy Institute. Desimone, L. M. (2009). Improving impact studies of teachers’ professional development: Toward better conceptualizations and measures. Educational Researcher, 38(3), 181–199. https://doi.org/10.3102/0013189X08331140 Eccles, J. S., & Wigfield, A. (2002). Motivational beliefs, values, and goals. Annual Review of Psychology, 53, 109–132. https://doi.org/10.1146/annurev.psych.53.100901.135153 Hudson, P. (2013). Mentoring as professional development: ‘Growth for both’ mentor and mentee. Professional Development in Education, 39(5), 771–783. https://doi.org/10.1080/19415257.2012.749415 Huizing, R. L. (2012). Mentoring together: A literature review of group mentoring. Mentoring & Tutoring: Partnership in Learning, 20(1), 27–55. https://doi.org/10.1080/13611267.2012.645599 King-Sears, M. E., Stefanidis, A., Evmenova, A. S., Rao, K., Mergen, R. L., Owen, L. S., & Strimel, M. M. (2023). Achievement of learners receiving UDL instruction: A meta-analysis. Teaching and Teacher Education, 122, 103956. https://doi.org/10.1016/j.tate.2022.103956 Luong, G.-Y. (2025). The effectiveness of mentoring, coaching, and induction practices for early career teachers: A scoping review. Teaching and Teacher Education, 163, 105065. https://doi.org/10.1016/j.tate.2025.105065 Meyer, A., Rose, D. H., & Gordon, D. (2014). Universal design for learning: Theory and practice. CAST Professional Publishing. Radlick, R. L., & Mevatne, M. (2023). Mentoring for inclusion: A scoping review of the literature. Nordisk Välfärdsforskning | Nordic Welfare Research, 8(1), 65–79. https://doi.org/10.18261/nwr.8.1.6 01. Professional Learning and Development
Paper Mentoring Practices in Whole-School Approach Anti-Bullying Interventions. An Exploration of the Practice Architectures of Professional Learning in Program Implementation. 1: University of Stavanger, Norway; 2: Malmö University, Sweden; 3: Monash University, Australia; 4: VIA University College, Denmark Presenting Author:Whole-school approach anti-bullying interventions have become a prominent strategy for addressing bullying and improving students’ well-being, inclusion, and learning environments (Gaffney et al., 2021; UNESCO, 2024). These programs typically rely on sustained professional learning among teachers and school leaders and are often implemented with the support of external facilitators. While evaluative research shows that many such programs are effective in reducing bullying (Gaffney et al., 2019; Gaffney et al., 2021), comparatively little attention has been paid to how professional learning is supported during implementation, and in particular to the role of external mentors in shaping teachers’ and leaders’ learning practices. Across national contexts, these external facilitators are described using a wide range of terms, including mentor, consultant, advisor, or trainer. Despite their centrality, their work is often treated as a technical or logistical support function rather than as professional learning. Moreover, the concept of mentoring itself remains loosely defined in this context (Aspfors & Fransson, 2015). Building on research that conceptualises mentoring as a socially situated professional learning practice—where knowledge, norms, and judgments are negotiated in and for practice (Goldshaft & Sjølie, 2024; Kemmis et al., 2017; Langelotz, 2017; Orland-Barak, 2016) —this paper foregrounds mentoring as more than delivery support. We also recognise that mentoring practices vary along a directive–dialogic continuum (Aspfors & Fransson, 2015) and can be contested in their purposes and power dynamics (Kemmis, Heikkinen, et al., 2014). This paper presents a planned qualitative, comparative study that examines mentoring practices as forms of professional learning embedded in the implementation of whole-school anti-bullying interventions. The study draws on five research-based interventions: Free from Mobbing (Fri for Mobberi [Denmark]); KnowBullying (Slovenia/Croatia); KiVa (Finland); the Learning Environment Project (Læringsmiljøprosjektet [Norway]); and the Olweus Bullying Prevention Program (worldwide). These cases offer a unique opportunity to examine how mentoring supports professional learning across different institutional arrangements, policy contexts, and traditions of teacher professionalism. The study is theoretically anchored in the Theory of Practice Architectures (TPA) (Kemmis, Wilkinson, et al., 2014), which conceptualises professional learning as occurring in and for practice (Salo et al., 2024) rather than as the transmission of knowledge. From this perspective, mentoring is understood as a practice composed of sayings (professional language and discourses), doings (activities, routines, and tools), and relatings (social relationships, power, and trust), all of which are shaped by broader organisational factors: cultural-discursive, material-economic and social-political arrangements (Kemmis, Heikkinen, et al., 2014). This framework allows for a close examination of how mentoring mediates professional learning and of how school personnel (including teachers, leaders, and non-pedagogical staff) engage with new knowledge during implementation. The study addresses the following research questions:
Although data collection is ongoing, the study is expected to show that mentoring practices range from directive, program-driven approaches to more dialogic and inquiry-oriented forms of professional learning that can expand professional agency (Edwards & Protheroe, 2004). The paper contributes to the Professional Learning Network by offering a practice-theoretical analysis of mentoring as situated professional learning in large-scale school reform. Methodology, Methods, Research Instruments or Sources Used The study adopts a qualitative, multiple-case study design (Stake, 2013) to explore mentoring practices as professional learning within five whole-school approach anti-bullying interventions. Each program constitutes a case situated within its specific national and institutional context. The study is grounded in an interpretive research tradition that prioritises participants’ meanings, experiences, and situated learning practices (Crotty, 1998). Data will be generated through four main sources. First, document analysis will examine how professional learning and mentoring are framed in peer-reviewed research literature, program materials, policy texts and evaluative reports. Second, observations of mentoring interactions—such as training sessions, implementation meetings, and reflective dialogues—will capture professional learning as it unfolds in practice. Third, semi-structured interviews with mentors, teachers, and school leaders will explore mentoring experiences, learning expectations, and perceived professional growth. Fourth, the researcher's reflective notes will be included, particularly when the researcher holds dual roles as a program-implementation mentor (PIM). Recognising mentoring as relational professional learning, the study intentionally combines insider and outsider perspectives. Reflexivity is treated as a methodological resource rather than a limitation (Alvesson & Sköldberg, 2018). Ethical approval will be sought through national research ethics bodies, and all participants will provide informed consent in line with the European General Data Protection Regulation (GDPR). Data analysis will draw explicitly on the Theory of Practice Architectures. Professional learning practices will be analysed by examining what is said, done, and related in mentoring interactions, and by identifying the cultural-discursive, material-economic, and social-political arrangements that shape (but do not define) these practices. Within-case analyses will be followed by a comparative cross-case analysis, enabling exploration of how mentoring mediates professional learning across different reform environments (Kemmis, 2022). Conclusions, Expected Outcomes or Findings This paper reports on an ongoing comparative study investigating mentoring as professional learning within the implementation of whole-school anti-bullying interventions. As the project is in progress, the conclusions below outline emergent analytical directions and anticipated contributions rather than definitive findings. Early analysis suggests that implementation mentoring constitutes a significant—yet often implicit—form of professional learning for teachers and school leaders. Rather than operating solely as technical support, mentoring appears to be a key site where professional knowledge, norms, and judgments are negotiated in and for practice. Across cases, mentoring practices range from directive, program-driven guidance to dialogic and inquiry-oriented approaches that enable reflection, contextual adaptation, and professional agency. The study examines how these variations are shaped by practice architectures—cultural-discursive (e.g., program language, evidence narratives), material-economic (e.g., time, tools, resourcing), and social-political arrangements (e.g., accountability, leadership, trust). Particular attention is being paid to tensions between program fidelity and contextual responsiveness, as well as to how power relations are enacted in mentor–mentee interactions. Analysing sayings, doings, and relatings across these arrangements is helping us specify the conditions under which mentoring supports—or constrains—meaningful professional learning during complex reform. As a research-in-progress contribution, the paper aims to advance Professional Learning Network debates by positioning mentoring as situated, collective, and practice-based learning rather than as an add-on to implementation. We anticipate producing: (a) clearer conceptualisations of mentoring as a professional learning practice in large-scale interventions; (b) design principles for mentoring structures (including mentor preparation and role clarity) that strengthen teacher and leader learning; and (c) methodological insights for analysing professional learning through a practice theoretical lens. Ultimately, the study seeks to inform researchers, program designers, and policymakers about how mentoring can be configured to balance fidelity with contextualisation, and how institutional arrangements can be aligned to sustain teacher and leader learning in whole-school anti-bullying work. References Alvesson, M., & Sköldberg, K. (2018). Reflexive methodology: New vistas for qualitative research. SAGE. Aspfors, J., & Fransson, G. (2015). Research on mentor education for mentors of newly qualified teachers: A qualitative meta-synthesis. Teaching and Teacher Education, 48, 75-86. Crotty, M. (1998). The foundations of social research. Meaning and perspective in the research process. Sage Publications Ltd. Edwards, A., & Protheroe, L. (2004). Teaching by proxy: Understanding how mentors are positioned in partnerships. Oxford Review of Education, 30(2), 183-197. Gaffney, H., Farrington, D. P., & Ttofi, M. M. (2019). Examining the Effectiveness of School-Bullying Intervention Programs Globally: a Meta-analysis. International Journal of Bullying Prevention, 1(1), 14-31. https://doi.org/10.1007/s42380-019-0007-4 Gaffney, H., Ttofi, M. M., & Farrington, D. P. (2021). What works in anti-bullying programs? Analysis of effective intervention components. Journal of School Psychology, 85, 37-56. https://doi.org/https://doi.org/10.1016/j.jsp.2020.12.002 Goldshaft, B. & Sjølie, E. (2024) Creating Communicative Learning Spaces in Initial Teacher Education (ITE) with Observation-grounded Co-mentoring Practices. Professional Development in Education, https://doi.org/10.1080/19415257.2024.2337772 Kemmis, S. (2022). Philosophical-Empirical Enquiry, Heuristics for Analysis. In S. Kemmis (Ed.), Transforming Practices: Changing the World with the Theory of Practice Architectures (pp. 147-170). Springer Nature Singapore. https://doi.org/10.1007/978-981-16-8973-4_8 Kemmis, S., Edwards-Groves, C., Lloyd, A., Grootenboer, P., Hardy, I., & Wilkinson, J. (2017). Learning as Being ‘Stirred In’ to Practices. In P. Grootenboer, C. Edwards-Groves, & S. Choy (Eds.), Practice Theory Perspectives on Pedagogy and Education: Praxis, Diversity and Contestation (pp. 45-65). Springer Singapore. https://doi.org/10.1007/978-981-10-3130-4_3 Kemmis, S., Heikkinen, H. L. T., Fransson, G., Aspfors, J., & Edwards-Groves, C. (2014). Mentoring of new teachers as a contested practice: Supervision, support and collaborative self-development. Teaching and Teacher Education, 43, 154-164. https://doi.org/https://doi.org/10.1016/j.tate.2014.07.001 Kemmis, S., Wilkinson, J., Edwards-Groves, C., Hardy, I., Grootenboer, P., & Bristol, L. (2014). Changing practices, changing education. Springer. Langelotz, L. (2017). Collegial Mentoring for Professional Development. In K. Mahon, S. Francisco, & S. Kemmis (Eds.), Exploring Education and Professional Practice: Through the Lens of Practice Architectures (pp. 139-149). Springer Singapore. https://doi.org/10.1007/978-981-10-2219-7_8 Orland-Barak, L. (2016). Mentoring. In J. Loughran & M. L. Hamilton (Eds.), International Handbook of Teacher Education: Volume 2 (pp. 105-141). Springer Singapore. https://doi.org/10.1007/978-981-10-0369-1_4 Salo, P., Francisco, S., & Olin, A. (2024). Understanding professional learning in and for practice. Professional Development in Education, 50(3). Stake, R. E. (2013). Multiple case study analysis. Guilford press. UNESCO. (2024). Safe to learn and thrive: Ending violence in and through education. http://www.jstor.org/stable/resrep70529 01. Professional Learning and Development
Paper An Instructional Coaching Model for Equity-focused School Change La Trobe University, Australia Presenting Author:Across many OECD and European jurisdictions, under-resourced schools face persistent challenges in accessing scalable, evidence-based professional learning (PL) models that improve both teaching quality and student learning (Hofmann & Ilie, 2022). These challenges are exacerbated by teacher shortages, high student diversity, varying levels of institutional autonomy, and uneven capacity for implementation. The Momentum Schools Extension project addresses these shared systemic concerns through the design, validation, and evaluation of an instructional coaching model for Australian schools serving low socioeconomic and vulnerable communities. The study is situated within a broader international discourse on evidence-based instruction, inclusive education, and mechanisms for sustainable workforce development, with strong potential for adaption to European contexts where comparable educational inequities and policy priorities exist. The primary research questions guiding this study are:
The theoretical framing integrates three major bodies of scholarship. First, the learning sciences (or science of learning) underpin the instructional practices targeted in the coaching intervention, including cognitive load theory, explicit instruction, retrieval practice, and structured literacy. These practices are increasingly referenced in policy and curriculum reforms across international schooling systems (e.g., Ontario Human Rights Commission, 2022; Pellegrini &Vivanet, 2020; Teacher Education Expert Panel [TEEP], 2023), particularly in literacy, where structured pedagogies and early intervention are linked to reduced attainment gaps (Gath et al., 2025; Hanford et al., 2025; Ontario Human Rights Commission, 2022). Second, the study draws on scholarship in inclusive education and equity-oriented pedagogy, recognising that many low socioeconomic schools serve culturally, linguistically, and socially diverse learners. Inclusive education is both a pedagogical and policy priority across the European Union and aligns with broader reforms intended to mitigate structural disadvantage and support multilingual learners. As such, inclusive practices form the third coaching focus, along with explicit instruction and structured literacy to broaden the intervention’s applicability across varied educational systems. Third, the study is theoretically grounded in research on professional learning, instructional coaching, and implementation science. Effective PL is characterised by sustained duration, alignment with classroom practice, iterative cycles of feedback, and student-centred impact measures. Limited longitudinal and quasi-experimental evidence exists on how PL influences both teacher behaviour and student outcomes over time—particularly in vulnerable schools. By adopting a Difference-in-Differences (DiD) quasi-experimental design, the project fills a methodological and empirical gap within the PL literature. This presentation details the process of development and validation of the research instruments and practical coaching materials relating to knowledge, skills, behaviours and attributes related to explicit instruction. In addition, the preliminary findings of the pilot study data are presented, revealing initial insights into school leader and teacher perceptions and experiences with the instructional coaching program. Methodology, Methods, Research Instruments or Sources Used The project adopts a three-year, Difference-in-Differences (DiD) quasi-experimental design with phased school participation, enabling comparison across treatment and business as usual (BAU) groups and measurement of longitudinal change in teacher practice and student perception data. The study encompasses 20 low-income, hard-to-staff schools in Australia, with two waves of participation introduced across staggered timeframes. This paper presentation will focus on Phase 1, a pilot study, which involved the design and validation of research instruments and coaching materials, along with, insights into teachers’ perspectives on and experiences with the explicit instruction online coaching program. Phase 1 (Design and Validation) focuses on instrument design, expert validation, and learning platform development. Underpinned by several systematic reviews and scholarly work on instructional coaching, explicit instruction, inclusive education and structured literacy, a range of research instruments were developed. An expert panel review was used to establish content validity of the instruments for teacher self-assessment and instructional coaching purposes. Phase 2 (Pilot study) draws on the preliminary data collected from the participating pilot schools (n=4) who were assigned to either the intervention or BAU condition. Using quantitative teacher self-assessments (Guttman items), surveys and interviews, the data indicated changes related to teachers’ knowledge about and application of explicit instruction before and after several coaching cycles. While school leader interviews, instructional coach interviews, aggregated student achievement data and student perception surveys will also be collected for this study, they are not the focus of this presentation. Conclusions, Expected Outcomes or Findings Given that this longitudinal project is still in its early stages, the expected outcomes are both educational and empirical. Educationally, the project is expected to strengthen teacher capacity in evidence-based instruction, inclusive education, and structured literacy, leading to improved student learning outcomes within vulnerable school communities. Empirically, the project will generate quasi-experimental evidence on the effectiveness of instructional coaching over time, addressing a recognised gap in PL literature. Educational systems globally share a strategic interest in improving teacher workforce capability, scaling evidence-informed practice, and reducing equity gaps. The proposed coaching model offers an adaptable architecture for implementation in diverse settings, particularly where structural inequity and teacher shortages are salient. The project also contributes methodological value by demonstrating the viability of DiD designs in PL research and by integrating student-level indicators into evaluations of teacher professional learning—an approach consistent with OECD, TALIS, and European research priorities relating to impact, monitoring, and continuous improvement. Expected outputs include validated coaching instruments, developmental rubrics, implementation guidance, and empirical analyses suitable for cross-jurisdictional comparison. References Gath, M., Gillon, G., Mcneill, B., & Scott, A. (2025). Evaluating the large-scale implementation of structured literacy teaching in New Zealand: Evidence from the Better Start Literacy Approach. International Journal of Educational Research, 129, 102510. Hansford, N., Dueker, S., Garforth, K., Grande, J., King, J., & McGlynn, S. (2025). An exploratory quantitative analysis of research on balanced literacy and structured literacy. Discover Education, 4(1), 488. Hofmann, R., & Ilie, S. (2022). A Theory-Led Evaluation of a Scalable Intervention to Promote Evidence-Based, Research-Informed Practice in Schools to Address Attainment Gaps. Education Sciences, 12(5), 353. https://doi.org/10.3390/educsci12050353 Ontario Human Rights Commission. (2022). Right to read: Public inquiry into human rights issues affecting students with reading disabilities in Ontario. https://www.ohrc.on.ca/en/right-to-read-public-inquiry-human-rights-issues-affecting-students-reading-disabilities-ontario Pellegrini, M., & Vivanet, G. (2020). Evidence-Based Policies in Education: Initiatives and Challenges in Europe. ECNU Review of Education, 4(1), 25-45. https://doi.org/10.1177/2096531120924670 Teacher Education Expert Panel. (2023). Strong beginnings: Report of the Teacher Education Expert Panel [Report]. Department of Education. https://www.education.gov.au/quality-initial-teacher-education-review/resources/strong-beginnings-report-teacher-education-expert-panel www.education.gov.au 01. Professional Learning and Development
Paper Constructing Professional Legitimacy in Teacher Professional Development: An External Facilitator’s Interaction with Teachers Across Career Stages 1: Hunan University, China, People's Republic of; 2: University of Melbourne, Australia; Eastern Central Normal University, China Presenting Author:This study examines how professional legitimacy is constructed and negotiated in teacher professional development (PD), focusing on the interactional work of an external PD facilitator and teachers’ differentiated responses across career stages. In many contemporary PD systems—across Europe, Asia, and other international contexts—external facilitators are increasingly relied upon to introduce reform-oriented pedagogies, support teacher learning, and bridge policy and practice. However, facilitator influence cannot be assumed. Its effectiveness depends critically on whether teachers recognise the facilitator as legitimate, credible, and worthy of professional engagement. Despite this, existing research has paid limited attention to the relational processes through which facilitator legitimacy is established and interpreted within PD settings, particularly among teachers with contrasting professional trajectories. Guided by this concern, the study addresses two research questions. First, it asks how the PD facilitator established and enacted professional legitimacy in the process of leading teacher professional development. Second, it investigates how teachers with different professional backgrounds—specifically senior and younger teachers—responded to and interpreted the facilitator’s legitimacy. By examining both enactment and interpretation, the study moves beyond treating legitimacy as an individual attribute of the facilitator and instead conceptualises it as a dynamic, relational accomplishment shaped through ongoing interaction. The analytical framework is grounded in the Integrative Model of Organizational Trust (IMOT) proposed by Mayer, Davis, and Schoorman (1995), which offers a well-established theoretical basis for understanding trust as a process linking perception, relational behaviour, and outcomes. IMOT conceptualises trust not as a static state but as a dynamic relationship influenced by both the trustor’s disposition and the perceived trustworthiness of the trustee. The model integrates six interrelated components—trustor propensity, perceived trustworthiness, trust, perceived risk, risk-taking in the relationship, and outcomes—thereby capturing how individuals move from perception to action under conditions of uncertainty. Central to this framework is the construct of perceived trustworthiness, which comprises three core dimensions: ability, benevolence, and integrity. Ability refers to perceptions of professional competence and expertise; benevolence refers to perceived goodwill and concern for others’ interests; and integrity refers to value alignment, fairness, and consistency with shared norms. In this study, these three dimensions are used to analyse how the facilitator’s actions, discourse, and positioning were interpreted by teachers and how such interpretations shaped their willingness to engage in professional risk-taking, such as experimenting with new pedagogies or exposing instructional uncertainty. Professional legitimacy is thus conceptualised as an outcome of teachers’ trust judgements across these dimensions. Importantly, IMOT allows for systematic examination of variation in these judgements across career stages. Senior teachers, with accumulated experiential authority and established professional identities, may evaluate facilitator legitimacy primarily through integrity and professional alignment, while younger teachers may be more responsive to demonstrations of technical ability or instructional support. The framework therefore enables a nuanced analysis of how legitimacy is differentially constructed and contested within heterogeneous professional communities. Although the empirical study is situated in the Chinese context, its contribution is explicitly international. Teacher professional development programmes are widespread globally, and recent research has demonstrated that the credibility and trustworthiness of PD facilitators constitute one of the most influential factors shaping PD effectiveness (Harper-Hill et al., 2022). By theorising facilitator legitimacy through an internationally recognised trust framework, this study speaks directly to European and international debates on external expertise, professional learning leadership, and relational governance in education. It offers transferable insights into how facilitator–teacher relationships can be designed and supported to enhance meaningful professional learning across diverse policy and cultural contexts. Methodology, Methods, Research Instruments or Sources Used This study was situated within the context of China’s ninth round of national curriculum reform, launched in 2014, which sought to strengthen teachers’ curriculum design, pedagogical reasoning, and classroom enactment through the National English Curriculum Standards. Against this policy backdrop, a professional learning initiative was implemented to support teachers’ interpretation and enactment of these standards within school-based practice. The professional learning activities were facilitated by a district-level teaching research officer (TRO), who also served as the researcher. As an external expert with extensive experience in curriculum development and teacher training, the facilitator introduced policy-level knowledge and subject expertise into the school. However, because he was not the TRO routinely responsible for the school’s ongoing professional learning, his engagement required relational negotiation beyond formal institutional authority. While the curriculum reform agenda and his policy-endorsed role provided initial legitimacy, teachers still needed to interpret and evaluate the relevance and credibility of this externally introduced expertise within their established professional practices. Participants included the PD facilitator as the focal trustee and thirteen English teachers as trustors. The facilitator had nearly two decades of teaching experience and had previously worked at the municipal education authority before joining the district teacher development centre, positioning him as both a seasoned practitioner and a policy-informed expert, yet an external figure to the school. The teacher participants comprised the school’s entire English faculty and represented different career stages. Data were collected over a nine-month professional learning initiative organised around iterative cycles of analysis, design, implementation, and evaluation. This study focused on interactional phases where trust-building processes were most visible. Data sources included twelve audio-recorded professional learning meetings, classroom observation notes, two rounds of semi-structured interviews with all teachers, written reflections from the facilitator, and supplementary artefacts such as unit designs and evaluative reports. All recordings were transcribed verbatim. Although the initiative drew on principles of Educational Design Research, the facilitator acted solely as a practitioner and was not involved in data analysis. Data analysis followed reflexive thematic analysis, combining inductive coding with theory-guided categorisation informed by the Integrative Model of Organizational Trust. Initial open coding captured facilitator enactments and teacher responses, which were subsequently organised around the dimensions of ability, benevolence, and integrity. Teachers’ interpretations were compared across career stages using a cross-case matrix. To enhance reliability, a subset of the data was independently coded by a second researcher, with discrepancies resolved through discussion. Conclusions, Expected Outcomes or Findings This study is expected to demonstrate that professional legitimacy in teacher professional development is not a static attribute of the PD facilitator. Still, rather a relational accomplishment co-constructed through interaction and interpreted differently by teachers across various career stages. Legitimacy emerged through the interplay of benevolence, ability, and integrity, each functioning in distinct yet complementary ways to shape teachers’ trust judgments and engagement. Benevolence operated as the relational foundation of legitimacy. Through empathic alignment, the facilitator acknowledged teachers’ pressures and emotional realities, reducing perceived hierarchy and creating a psychologically safe space for participation. Respectful recognition further reinforced legitimacy by validating teachers’ existing expertise and positioning them as professional partners rather than passive recipients of reform. These enactments fostered openness and reflective engagement, particularly among younger teachers, while senior teachers acknowledged the supportive stance but often maintained professional distance, signalling a more conditional form of trust. Communal solidarity, enacted through shared identity and collective framing, strengthened group cohesion and participation, though its emotional impact was again moderated by teachers’ career stage and established professional identities. Ability functioned as a distributed mechanism of influence rather than a singular display of expertise. Claimed expertise, grounded in policy experience and professional credentials, initially reassured younger teachers but carried limited persuasive power for senior teachers. Presented expertise, visible in diagnostic feedback and pedagogical reasoning, enabled deeper professional dialogue and selective uptake across both groups. Proven expertise, demonstrated through classroom-relevant outcomes, constituted the most robust basis for sustained legitimacy, while also becoming a site of negotiation where senior teachers evaluated feasibility against contextual constraints. Integrity served as a form of backup assurance, reinforcing legitimacy when benevolence or ability alone was insufficient. Alignment with policy discourse, convergence with recognised experts, and appeals to collective aspiration provided value-based justification for the facilitator’s guidance. References 1. Mayer, R. C., Davis, J. H., & Schoorman, F. D. (1995). An integrative model of organizational trust. Academy of Management Review, 20(3), 709–734. 2. Braun, V., & Clarke, V. (2022). Thematic analysis: A practical guide. London: SAGE. 3. Harper-Hill, K., Beamish, W., Hay, S., Whelan, M., Kerr, J., Zelenko, O., & Villalba, C. (2022). Teacher engagement in professional learning: what makes the difference to teacher practice?. 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