The guest and host teachers held STEM lessons for the participant French and Bulgarian students:

• Solar System Workshop - scale, position and size of the planets, visualization of the solar system and distance between planets
• Radiation in space - discussion on the utilization of cosmic radiation energy based on the video developed by Bulgarian students, “Radiation in space” - fusion and fission, how can scientists channel the power of radiation to fuel spaceships, etc.
• Colonizing Mars - creation of a sequel of a DiSTARS based story developed by Bulgarian students. The international students team developed their own digital narrative having various endings depending on the reader’s preferences.