It is commonly understood that museum collections play a significant role in the transmission of culture. However, their actual potential to support various forms of learning as the principal mechanism of cultural transmission, as well as to promote social cohesion and inter-cultural understanding, could be extended in a sustainable way: namely, through a symbiotic relationship between museums and the formal education system. There is, notably, a long tradition of object-based learning in archaeological studies and other academic disciplines: one that we adopt as a solid model in proposing a sustainable collections management concept. In this article, we have shown how cultural sustainability cuts across all three pillars of sustainable development. As a sustainable solution, a collections management strategy based on adaptive reuse in educational contexts offers cultural ecosystem services that are transferable from ecological to economic domains. Clearly, multiple benefits can be reaped from the diversification of heritage collections' uses, including aesthetic, educational and scientific. These can lead to more ecosystem services offered from a single object or source: for example, instead of musealised objects remaining in storage and thus inaccessible to researchers or students who might otherwise benefit from them, they can now be used for purposes of education and research. This sort of model also confers significant cultural, social and environmental benefits, not least because it allows for more diversified cultural transmission of heritage and reduces the need to continually grow collections. Our conceptualisation of a circular-economy based model represents only an initial step towards a more comprehensive exploration of sustainable collections management. The applicability of the model, with re-use occurring outside of the museological system and storage facilities shared between different public institutions within the cultural and educational sectors, does present a number of challenges. Examining different attitudes and policies related to the disposal of collections among and within diverse countries, one can expect to find a wide range of circumstances and constraints when it comes to the question of the inter-sectorial sharing of cultural property. Further research would need to provide insight into specific national legislation, professional attitudes and traditions around disposal if it wishes to substantively address options for the smooth flow of objects between museums, universities and schools. The need to take into account all the nuances between legislation and professional behaviour should also be applied in relation to the role of storage within a circular model of collections management. In some contexts, as already stated, museums possess an abundance of study objects or other non-collection material, which is kept in storage facilities without clear museological purpose, while in many others the percentage of inventoried museum objects amid the overall number of objects owned by a given institution is quite high. Both previously mentioned scenarios, involving large or small number of objects that lack a clear museological purpose, can potentially offer useful testing grounds for the concept of circular collections management, though each would surely reveal different set of challenges. Meanwhile, museums in different countries have been accumulating experiences in managing shared and centralised storage facilities, which can illuminate future pathways towards the more sustainable use and re-use of tangible cultural resources. There is also a promising approach to heritage conservation impact assessment that measures the wellbeing that heritage brings to people. Further research in this direction might open the possibility to evaluate ecosystem services made available by the adaptive re-use of collections, both in qualitative and quantitative ways. Unlike collections, individual artefacts do not have to be dissembled, nor 'die' before they serve a great many purposes. The proposed conceptual model outlined in this paper is based on the fundamental idea that material culture can be more significantly exploited as a resource in cultural transmission through both museological and educational contexts; but it can also potentially reduce energy consumption and investments related to the collections growth, thus addressing problems of both economic and environmental sustainability. [ABSTRACT FROM AUTHOR]