Boost spelling skills with the Steck-Vaughn Harcourt Core Skills: Spelling workbook series from Houghton Mifflin Harcourt. Thirty lessons are included; word groups are based upon common spelling patterns and sounds. This grade 1 workbook focuses on the spelling of vowel sounds, word structure, and content area words. Engaging activities and contextual exercises encourage students to explore word meanings and use words in context. 129 perforated pages, reproducible for classroom use, softcover. Line-listed answer key included. Grade 1.