Mixed Reality (MR) offers immersive and multimodal opportunities for education but remains difficult for teachers to author without technical expertise. We propose MRGEN, a conceptual framework for LLM-powered authoring tools to support teachers in creating MR learning activities that work on mobile devices (tablets and smartphones). MRGEN articulates three axes: Learning Objectives, MR Modality, and GAI Assistance. To validate our framework, we implemented a prototype based on the open-source MIXAP authoring platform and conducted a user study with 24 participants. Results show that LLM-powered authoring reduced task duration by 36% on average, and that over 90% of participants found the AI support helpful for brainstorming, structuring, and aligning content with their learning goals. These findings yielded very promising results for future AI-assisted MR authoring tools.
@article{arxiv.2604.15341,
title = {MRGEN: A Conceptual Framework for LLM-Powered Mixed Reality Authoring Tools for Education},
author = {Mohammed Oussama Seddini and Mohamed Ez-Zaouia and Ngoc Luyen Le and Iza Marfisi},
journal= {arXiv preprint arXiv:2604.15341},
year = {2026}
}