Learn how Caribbean fishermen use light signals to communicate at night, then create your own simple signaling system using flashlights.
Caribbean fishermen often fish at night and early morning. They use lights on their boats to stay safe, be seen by other boats, and communicate with each other. Lighthouses also guide ships safely past dangerous rocks and reefs. This activity explores how light helps people communicate and stay safe at sea.
Fisherman's Flashlight Signals teaches students about using light for communication. Students learn how Caribbean fishermen and sailors use light signals to send messages at night, then create and practice their own simple signaling system. This connects to understanding light as a communication tool while celebrating Caribbean maritime traditions.
Waves, Light & Sound: Light as Communication
Create a classroom signaling system with these simple codes:
Discuss these real uses of light signals:
One student is a "lighthouse" with a unique flash pattern. Others must identify which lighthouse it is.
If safe, conduct signaling practice in a darkened room for better effect.
Students create their own signals for classroom messages like "bathroom," "water," "finished."
For advanced learners, introduce simple Morse code: dots and dashes with light.
"Why do fishermen need to use lights to communicate?"
"What would happen if boats didn't have lights at night?"
"Why do emergency vehicles have flashing lights?"
"Can you think of other ways we use light to communicate?"
"Why is it important that everyone agrees on what signals mean?"
