The opening of Preface
As things now stand, the course of instruction in American history in our public schools embraces three distinct treatments of the subject. Three separate books are used. First, there is the primary book, which is usually a very condensed narrative with emphasis on biographies and anecdotes. Second, there is the advanced text for the seventh or eighth grade, generally speaking, an expansion of the elementary book by the addition of forty or fifty thousand words. Finally, there is the high school manual. This, too, ordinarily follows the beaten path, giving fuller accounts of the same events and characters. To put it bluntly, we do not assume that our children obtain permanent possessions from their study of history in the lower grades. If mathematicians followed the same method, high school texts on algebra and geometry would include the multiplication table and fractions.