A nurse is reinforcing teaching with a 4-year-old child who is on airborne precautions about activities he can do while in the hospital. Which of the following activities should the nurse include in the teaching?

A child on airborne precautions must remain in a negative-pressure isolation room and cannot leave the room or interact with others in shared spaces, because airborne pathogens such as measles, varicella, or tuberculosis spread through tiny droplet nuclei that remain suspended in air. Putting a puzzle together is the correct answer because it is a developmentally appropriate, quiet activity that can be done independently within the isolation room. Puzzles are suitable for a 4-year-old child's developmental stage, aligning with preoperational thinking and fine motor skill development. Watching a video game in the playroom is incorrect because the playroom is a shared space where other children and staff would be exposed to the airborne pathogen; the child cannot leave the room. Pulling a wagon with toys in the hallway is also inappropriate, as the hallway is outside the isolation room and would expose others to the infectious agent. Constructing a model airplane involves small pieces and potentially hazardous materials such as glue, making it unsafe and developmentally inappropriate for a 4-year-old. Therefore, a simple in-room activity like putting together a puzzle is the safest and most appropriate choice for this child while maintaining airborne isolation precautions.