The digital twin is a concept making it possible to make a link between physical products and all the associated digital information in order to optimize its development and operation. The digital twin is part of the context of industry 4.0 and the management of cyber-physical systems. In this article, we propose another use of the digital twin, in particular within the training process with an ecological transition aim. For this, we propose a modeling allowing to integrate the digital twin in a training context using the notion of multi-faceted resources.