Unfotunately, the PATHETIC school system in Seattle (and many liberal cities eleswhere, I'm sure), don't even put Christmas on their school calenders.
When I was in grade school, in an ultra-liberal school district, we used to have Christmas decorations at school and sing Christmas carols. Since then, our country has gone steadily backwards.
True, those were the days of the Protestant ascendancy, when mainstream WASPs were riding high, but that was sure preferable to what we have now, with the ascendancy of the separationist police who refuse to allow any public demonstration of religion, except maybe Islam.
My school was in Scarsdale, where there were surely enough Jews to stop the carols if they had wanted to; but thankfully they did not.