This presentation will outline a description, rationale and analysis of the historical evolution of technology use in CLIL project-based Model United Nations (MUN) team taught ELF (English as a lingua franca) classes at a Japanese university that includes participation in a simulation with students from other universities in and outside of Japan. In a MUN experiential learning program, students gain knowledge in the workings of the United Nations (UN) as well as contemporary international issues. It provides students with a forum to develop and use skills in diplomacy, negotiation, critical thinking, compromise, public speaking, academic writing, and research. MUN during the COVID pandemic has changed from technology enhanced to technology dependent. Technology for a combination of asynchronous and synchronous learning has increased the quality and quantity of interaction between students, instructors, and content as students in the preparation process and simulation need to become active learners, participants, and contributors.