Young children and teens walking and walking their bikes down sidewalk / crossing street at Lincoln School / walking on sidewalk toward camera / arriving at entrance of Lincoln School / / "Pacific Northwest Bell Mobile Driving Test Unit" trailer / young woman sitting in simulator gets instruction, steps on brake / she looks into hood on machine / she steers trainer / view over shoulder of film of woman steering down filmed highway, crashing / view of trailer / / four-engine United Airlines propeller liner taxiing down tarmac, flat tire on nose wheel / slowly taxis toward camera / pilot looks out open cockpit door, men examine tire