Comb Bound Book & Data CD. Grade: 3 & up. This completely reproducible puzzle book features Kriss Kross, Word Searches, Musical Sudoku, Crosswords, and several Complete the Story pages. The data CD contains PDF files, so teachers can post or print each page. Use these puzzles as vocabulary builders, extra credit exercises, or enjoyable homework assignments. Includes answer keys. The comb binding creates a lay-flat book that is perfect for study and performance.