In this paper, we address the issue of the design and deployment of VR-oriented pedagogical scenarios by teachers as designers. To provide practical and theoretical solutions, we analyse the various existing models and tools for assisting teachers in the design and deployment of virtual reality learning environments (VRLEs). We identify a need for a model that covers the pedagogical needs of teachers, including the modelling of pedagogical structuring and the consideration of the specificities of the VR environment. Our main contributions are a pedagogical scenario model and the development of an editor called VR-PEAS (Virtual Reality PEdAgogical Scenarisation tool), which provides a solution that can support and help teacher-designers to design, adapt and reuse pedagogical scenarios oriented towards VR. We proposed a literature review to identify the main concepts of pedagogical scenario design and developed the computer solution according to an agile approach. To validate the basic concepts of our contribution and the impact of our implementation, we define a case study evaluation based on four different pedagogical situations using a qualitative method based on questionnaires. Our findings indicated that teachers could design VRLEs that were aligned with their pre-defined scenario and operate them successfully.