The rapidly changing landscape of school education increasingly calls for innovative strategies to tackle global challenges through the development of sustainability competencies. Education for Sustainable Development (ESD) has emerged as a vital framework, yet its implementation often suffers from a lack of adequate resources. Open Educational Resources (OER) hold great promise for democratizing access to educational materials, but their adoption in schools remains limited due to various obstacles such as lack of knowledge about the concept OER, lack of time, overwhelming variety of offers, legal uncertainties, etc. This proposal introduces moreBNE, a project designed to bridge this gap by creating an OER Community of Practice (OER-CoP) with the focus on ESD in schools, merging two key educational innovations to establish sustainable educational structures.

Research is being conducted into the effectiveness of the various measures to expand and consolidate the OER-CoP, how the collaborative and synchronous/asynchronous work processes can be structured in a meaningful way and whether a digital cross-institutional platform that enables exchange between schools, universities and non-school educational stakeholders can consolidate collaborative work in the CoP.

Great potential is attributed to teaching modules, as these are not pure teaching materials, but contextualized, curriculum-compliant, subject-related concepts of teaching. They are based on a teaching-learning-theoretical classification and reflection, didactic-methodical commentary, a schedule and the associated teaching materials and thus have the potential to solve the problem of the lack of adequate OER for uncomplicated use in the school sector.

Keywords: Open Educational Practices, Open Educational Resources, Education for Sustainable Development, Community of Practice, Teacher Education, Collaborative Learning, Digital Literacy.