Power up essential skills with this handy pack of our most popular flash cards. Fun games, rich in content, big in results! Introduce, practice, and master sequencing, early reading skills, 9 colors & 9 shapes, counting 0-12, matching, and letters with letter sounds/word cues. Self-checking, answers on backs. Quick-sorting, no-see-through cards. Two-sided, 3⅛" x 5¼" cards. Contains 4 card sets that review and reinforce key early learning skills. Self-checking flash cards feature answers on back for independent learning. Great for school, home, childcare, and travel. Durable, no-see-through cards. Quick-sorting, rounded corners. 4 packs in set; 56 2-sided cards per pack, 3 1/8" X 5 1/4".