Recognise that light appears to travel in straight lines.
Use the idea that light travels in straight lines to explain that objects are seen because they give out or reflect light into the eye.
Explain that we see things because light travels from light sources to our eyes or from light sources to objects and then to our eyes.
Use the idea that light travels in straight lines to explain why shadows have the same shape as the objects that cast them.
Activities in the module:
PSPR74YS314-The incident ray and the reflected rays
PSPR74YS315-The plane of reflection
PSPR74YS317-Make a periscope
PSPR74YS343-Distance of light vs shadow