The rows of books on the left prepare children for kindergarten. So do certain flash cards. The remainder of the books are color-coded into the subject areas of reading readiness, reading, language arts, phonics, spelling, math, and science. The books help teach the skill, or are used as a test to make sure the child has learned the skill in school, or are used as reinforcement during the summer to keep skills sharply tuned, or are used as a first-class ticket to a new skill or grade level. Flash cards and workbooks can be used simultaneously and with equal learning value.
Adults can use the books the same way.
It is a fact that adults with minimal math and reading skills teach themselves basic skills with School Zone books. A recent School Zone research study found extensive use of this kind of educational product in the home. In each age group, coloring books and activity books are slightly more popular than workbooks or flash cards. Most parents assist children with workbooks at least twice a week. Virtually all parents and children agree that workbooks and flash cards are educational, enjoyable, and meet objectives.