Prefixes and Suffixes Gr 4-8 Author:Trisha Callella The national standards require that sutdents beginning at 4th grade use their knowledge of prefixes and suffixes to determine the meaning of words. Each of the 30 units in this book includes a word list, vocabulary sort words, review game cards, and a vocabulary quiz. Students will learn over 300 vocabulary words and become more comfortable "dis... more »ecting" words and defining their parts.« less