"The school assignment was for each student to bring to class something that represents a family Christmas tradition and do a 1-minute presentation on it."
I keep being puzzled by government schools that offer Christmas concerts but forbid "religious" music and, as in the case above, invite students to speak about their family's Christmas tradition but not permit them to quote from the source material. It's an odd sort of schizophrenia, isn't it? Is the assumption by the school that all people celebrate only a secularized form of "Christmas"? If so, that bubble deserves to be punctured.
If you wish to keep the religious aspect of Christmas, which is admittedly all there is to Christmas, out of the schools, then don't have Christmas concerts or oriented class assignments. Is this really that difficult to figure out?