🎤 Wiring Walkthrough Checkpoint

Teams complete a milestone walkthrough presentation for the teacher using their revised prototype, scale drawing, decision matrix, and journal evidence. They must explain the original problem, measurable criteria, chosen layout, retest comparison, one improvement made, one remaining gap, and next steps for the final expo. This serves as a gate before Phase 5, and students end with a short oral reflection naming one safe and efficient choice and one way they grew in confidence, focus, or responsibility.