Documentational trajectory: a tool for analyzing the genesis of a teacher’s resource system across her collective work

Our contribution to TWG 22 is dedicated to discussing teachers’ interactions with resources for planning their classroom instruction, particularly in the context of collective work. Each teacher along her professional life uses and creates a lot of resources. For analyzing the history of teacher work with/for resources, we propose the notion of documentational trajectory. This idea is based on and aims to contribute the the development of the documentational approach to didactics. We present the data related to a teacher’s work, which allows us building her documentational trajectory. We use it to analyze teacher’s professional development. It evidences a strong particpation in collective work, in particular a collective named SESAMES, has an essential role. It contributes to the emergence of a particular resource, which is called as metaresource, structuring her documentation work.