Steck-Vaughn Core Skills SpellingCore Skills for 1st grade students features word lists built around similar sounds and patterns with varied and relevant exercises. Thirty lessons are included; word groups are based upon common spelling patterns and sounds. This 1st grade 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. Perforated pages are reproducible for classroom use. Answer key included.