Summary
George wonders how traffic lights know when to change, and investigates the clever design that keeps cars and people safe. He learns that people design tools to solve problems.
Viewer safety
All ages
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Teaching resources
Discussion questions
Talk about it
Traffic lights are a designed solution to a real problem: keeping cars and people from crashing. George explores how a simple design helps a whole street.
- What problem do traffic lights solve?
- What do the red, yellow, and green lights each tell you to do?
- What might happen at a busy corner with no traffic light?
Quick work-a-long
Vocabulary: design, signal, problem, safe.
Try it: Draw a traffic light. Write what a driver should do at each color.