Once you've tried this unique phonics-based curriculum, you'll never return to rote memorization! Ludwig identifies, categorizes, and cross-references all the sound/letter patterns in the English language, providing a list of examples for each usage. Similar words are grouped together for easy pattern recognition and memorization. Students learn to identify errors, prepare individual word lists, and create practice sentences. Ages 8 and up. 182 pages, softcover from Wordsmiths.