Nicole --Those words to "Carol of the Bells" are the English words -- and they're not a translation (A true translation of the lyrics wouldn't even come close to scanning).
It is a wonderful song, but it's a bit complicated to sing for a pre-school concert, since it's a quodlibet for two voices.
There's a webpage for the song, with a brief history, two versions of English lyrics, and the real translation of the lyrics here, for those who are interested...