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Consider introducing them to typical workflows and letting them assume roles within that workflow for each project. On one project someone could play producer, or "game designer," or sound supervisor. You know... people making the creative decisions, people supervising the work, people setting schedules and deadlines and such. I think it will help demystify the process and prepare them for how professionals work, and prepare them for the importance of things like teamwork and communication.
It is a specialized training course for students in sound design for video game who have good knowledges in sound.
They've already done two years of study before in music composition, sound recording and mixing.