Activity 1: presentation of vocabulary (easy)
Activity 2: matching exercise on vocabulary (easy)
Activity 3: make your own monster (ver, very easy!)
Activity 4: match the costume piecture with the word. (very, very easy)
Activity 5: find the things in the dark (elementary) 
Activity 6: quiz on Halloween vocabulary and story.
Activity 7: quiz on Halloween. (elementary level)
Activity 8: how to decorate a pumpkin. (pre-intermediate, short)
Activity 9: the xtec Halloween page (elementary)
Activity 10: brief explanation of Halloween with True / False quiz. (high level)
Activity 11: Woodland's School: explanation of Halloween with pictures and short sentence (high level)
Activity 12: video of the history of Halloween
(high level)
Activity 13: brief history of Halloween (high level)
Activity 14: ghost stories (high level)