Christmas can be really fun as a language assistant so here is a bunch of worksheets I used with my classes. I found that songs were very popular so I have some worksheets with fill-in-the-blank songs.
This is a matching activity, match the pictures to the words. Note: there are too many words!
This is a worksheet about traditions at Christmas with some fill-in-the-blanks action: at-christmas-we-_
A memory game: on-my-christmas-list-there-is
Tongue Twisters: christmas-challenge
Baby its Cold Outside: baby-its-cold-outside
The Grinch: the-grinch-song_
In this PowerPoint I used the song Rudolph the Red Nosed Reindeer then asked the class some comprehension questions: rudolph-questions