Contains thirty-six phonics based units that provide students with a weekly word list centered on a particular theme or category of words, written exercises to develop the lesson concepts, and a final test covering each lesson. Teaching suggestions, as well as complete directions, are included. Students who study this workbook will be better prepared to spell words that have difficult sounds or difficult endings. This book also provides instruction in key Latin and Greek prefixes. Later units in the book teach students how to discriminate synonyms and how to change accents.