Teach and reinforce long- and short-vowel sounds with these 20 self-checking, five-piece puzzles. Each puzzle features a target vowel sound at the center piece and four matching picture/word puzzle pieces. Unique die cuts on each puzzle make self-correction a snap! These 8-by-8-inch plastic-coated puzzles are durable and easy for small hands to manipulate. Includes an activity guide. For use with Grades K-2.