🎢 Welcome Jam Chain Reaction

Teams complete the project launch by opening a first-day mystery scenario, then building a fast mini Rube Goldberg chain reaction with cups, cardboard, tape, string, marbles, dominoes, and sticky notes. The build must include one positive welcome message, one helpful action for a new student, and one need connected to starting in the new building. Students end by capturing two observations about what made the design feel supportive and what failed in the mechanism.