Boost Vocabulary with little prep work! Use the Mystery Word of the Week clues to spark discussion of words in a few minutes per day. Each of the 90 Mystery Word of the Week has 4 daily clue posters and the "answer" poster for Fridays. Daily clues include synonyms, antonyms, using the word in a sentence, and describing the number of letters/beginning letter. Create an interactive bulletin board, post the Mystery Word of the Week as a challenge, project the daily clue for bell-ringer work, incorp