An I Know It! Book. Skills Include: Opposites; Vowel sounds; Beginning sounds; Vocabulary; Rhyming words; Alphabetical order. This workbook introduces the letter sounds and spelling patterns that first graders need to practice the most. The entertaining puzzles reinforce word recognition, pronunciation, spelling patterns, and writing. 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. These workbooks cover essential curriculum from preschool through sixth grade. Made in the USA.