An I Know It! Book. The enjoyable crosswords, riddles, codes, and puzzles in this workbook help reinforce important spelling skills, including spelling patterns, word recognition, and pronunciation. Skills Include: Blends, long vowel sounds, suffixes, short vowel sounds, sight words, combination sounds. Review, Reinforce & Accelerate Learning! All School Zone products are developed by skilled educators to provide the highest quality, up-to-date curriculum possible. Workbooks: Top-quality content, clear directions, and full-color illustrations make School Zone workbooks the best choice. Made in the USA.