觉得老师刚好应该借机教孩子怎样handle不同见解。

可以对大家说，some believe there is Santa, some don't. Well, there is one if you believe there is one; and there isn't one if you don't. It's OK either way. Either way, you all deserve a very wonderful holiday and a nice break from school. We don't have to force our own idea into others' mind. After all, it's harder to prove there isn't something than to prove there is. Perhaps it's more fun to believe there is Santa.