[Adam the Fish]

Religion has shaped, and continues to shape (both positively and negatively) our world and societies across the globe.
More than ever, with multiculturalism growing, tolerance of others is vitally important.
For these reasons, religion - whatever beliefs individuals might hold about it and its effects - is too important not to teach in schools.

However, that in no way means that schools should identify as a religion or even revolve in any manner around it outside of Religious Education.

The experience of, for example, going to Church cannot be recreated in a classroom and perhaps the experience would be lost should schools no longer identify as a certain religion.
Nevertheless, I do not believe that schools should identify as a religion. They are there to educate.
That means that - like absolutely everything else - information should be presented in an objective manner. Said information should have fact behind it. Fact is something with corroborated, physical evidence.
It is a fact that many people internationally are Christians. It is not a fact that the Christian God exists.

Schools - and I think particularly primary schools, where pupils are inclined to pretty blindly believe their teachers (and therefore be indoctrinated by any non-objective teaching) - exist to give the facts, and let pupils learn to think for themselves. They are not to teach children what to think.

In any case, it can lead to awkward situations.
If a teacher in a Christian school blurts out, "Ohy God!", then that teacher either has to say "I'm a hypocritical sinner, children, and say things you're not allowed to," or blatantly lie. Neither are particularly favourable.

Especially with growing multiculturalism, schools need to cater for all and be objective, not force ideas upon children who are yet incapable of much free-thinking.
In any case, from my experience, it doesn't work anyway. Nearly everyone I know who went to a Christian school is every bit as atheist or agnostic as everyone else in the class, if not more sceptical and bitter.

I'll be interested to see other responses...