The message
from Dave contains these words:

As I passed the group, one of the children asked 'what is a shore'?

The teacher replied that she did not know. I jumped in and said that it
was that part of the beach that is covered between low and high tide and
that it was called a foreshore.

Am I right?

Yes and no. :-)

Foreshore can mean the bit between high and low water mark but it can
also mean he bit immediately inshore of the high watermark.

--
Roger Chapman