Science
Waves, Light & Sound
Procedural
6–7 yrs
Communication with Light & Sound
光与声的通信方式
Description
Design and build a device that uses light or sound to solve the problem of communicating over a distance
Mastery Evidence
- Design a device that uses light or sound to communicate over a distance (e.g. string telephone, torch signals)
- Build and test the device, identifying what works and what could be improved
- Explain how the device uses properties of light or sound to transmit information
Assessment Prompt
Could your child design a simple device — like a string telephone or a mirror signalling system — to send a message to someone far away?
Prerequisites 1
Light & Seeing in the Dark
必须理解光的工作原理，才能设计利用光进行信息传递的装置
