LeapFrog - Slide to Read ABC FlashcardsSlide into reading with the Slide to Read ABC Flash Cards. From A Z, the 13 double sided cards feature letters, words, sentences and colorful pictures. Learning our ABCs is as easy as counting 1, 2, 3. Preschoolers can touch the card to explore a letter sound, words that begin with that letter and a silly animal sentence. The mouse makes milkshakes! Slide your finger across the sentences from left to right, fast or slow, to follow along while hearing