I do have a range of Christmassy worksheets and activities on frenchteacher.net if you like that sort of thing near the end of term. Beginning at primary/Year 7 level you'll find a crossword, online Blockbusters game, wordsearch, vocabulary list, code- breaking task and strip bingo game. All of these can equally be used with Y8 pupils, or even some Y9s. On the Y10-11 (intermediate) page there is a pairwork activity on Christmas presents which works well for a first lesson back after Christmas. The focus is on developing vocabulary and using recevoir and offrir. There is also a text with activities based on the Cinderella story, if you find that a Christmassy thing to do. But Christmas activities need not just be for the young ones! In the A-level section there is a video listening task, which could be done with Y11s too (high intermediate/low advanced). This is based on a good video made at Nottingham High School. In addition there are two interesting texts with exercises.