Features double-sided sliding cards with brilliant photos! Slide and Learn Flash Cards are a fun way for your child to develop visual literacy. The box contains 13 double sided interactive cards created with early childhood experts and teachers, and tested with children. See two pictures that start with the same letter sound that reveal the letter (both upper and lower case) and the word picture. It helps extend vocabulary, sentence building, and spelling. Build word recognition and vocabulary. Develops writing and spelling skills and children learn the common sounds of the alphabet. Check out Related products for additional sets of Slide & Learn Cards.