Subject: Light waves

In the process of reviewing current science curriculum for a proposed

new curriculum,  this question came up.  Most of the 4th grade texts 

refer to light waves in general and that they travel faster in empty

space.  How do I explain that light is not a wave (John Bell's theorem

confirmed not only the Copenhagen Interpretation but did so by using a

single photon) and that the speed of light is a constant.  Most of the 

teachers I deal with are strong in life sciences, but are generally 

very weak in the physical side.



Thanks.

Re: Light waves