Here are 28 pages on Halloween that are suited particularly for Junior-Intermediate French Immersion grades.
This is not a "baby" unit on Halloween. In this booklet you will find the history of Halloween, the history of Halloween in Canada, black cats, Tick or Treating, Links to Commerce and Government, The Legend of the Jack O' Lantern, and cross-cultural information on other festivals of the dead.
Since I don't believe in doing things simply because they are fun, I really wanted to link this booklet specifically to the Social Studies curriculum. In this booklet I have incorporated links to Ancient Civilizations, Medieval Times, Government, Immigration, Communities in Canada, Legends, Commerce, Human Rights issues at the international level, and cultural awareness. I have also incorporated technology in one of the text's comprehension questions.
When using this booklet with my class, I also do vocabulary studies and I normally do Halloween at about the time when I do synonyms in French.