These flash cards are for the Dolch word lists, which are the 220 most common words in children’s reading books. Dolch words, or sight words, provide a great base for reading at an early age. They are often called sight words because some of them can’t be sounded out, and need to be learned by sight. Touch a button below to begin the word flash cards. The order of the words are randomly generated. Sight words include: Preschool, Kindergarten, 1st Grade, 2nd Grade and 3rd Grade.