How many categories of information are there in the Dewey Decimal System?
Emphasize the word decimal. If they have trouble, ask how many years there are in a decade, noting that the dec means 10. From the second set of books selected for this lesson, show a book or two from each classification and talk about the types of information found in books in each class. Before books come to our library, the books are assigned a call number according to the chart above, which indicates where they will be placed on the library shelves. Explain using examples of books and topics students are familiar with. Many books have a more complicated number that includes one or two or several numbers beyond the decimal point. For example (write on overhead or chart): 636.088 Roy This is the number for a book about pets. The .088 helps arrange books in a more detailed way. In a smaller library like ours, you will usually be able to find the book you want without knowing all of the decimal numbers, but at larger places like the high school libraries or public libraries you will ne
