Flash cards support early learning of basic skills for preschoolers. Spectrum Early Learning Flash Cards Box Set provides children with a full-range of early learning practice so they are equipped with the essential skills they need for school achievement and for success on proficiency tests. This set contains six decks (Alphabet, Colors and Shapes, First Words, Numbers, Phonics, and Sight Words), which are organized by tabs for quick and easy access. The answers are featured on the back of each card so children can check their answers. The 324 two-sided cards come with a convenient, sturdy storage box.