Evolution of teachers' professional learning when using a technological resource: a case study of a Tunisian primary school teacher

While numerous studies have investigated teachers' professional learning through their interaction with resources, the question of how teachers' knowledge evolves at different stages of the instructional process remains underexplored. To address this gap, this article builds on the documentational approach to didactics (DAD) and the theory of instrumental orchestration to investigate teachers' professional learning in terms of document development through their interaction with resources in and out of class. To this end, the paper proposes a theoretical and methodological model to analyze the evolution of a document, focusing on the joint evolution of utilization schemes and professional situations. This model provides analytical tools to track the development of teachers' professional knowledge. The theoretical and methodological model was applied to a case study involving a Tunisian primary school teacher who used the technological resource GeoGebra for the first time to introduce the properties of parallelograms to 6th grade students (aged 11-12). Findings suggest the relevance and operationality of the proposed model, through a short-term analysis of documentational genesis, to track the evolution of the teacher's professional knowledge related to the use of GeoGebra in class. This model can be considered as a theoretical and methodological contribution, deepening the understanding of teachers' professional learning when using technological resources and providing insights into the dynamic nature of teachers' professional knowledge development.