A content analysis of over 28,000 pages from 141 elementary school mathematics textbooks published between 1900 and 2000 shows that widely used mathematics textbooks have changed substantially. Textbooks from the early part of the century were typically narrow in content but presented substantial amounts of advanced arithmetic and also asked…

This paper is based on a portion of the curriculum analysis of elementary science textbooks that was conducted as part of a larger Elementary Subjects Center study of curriculum materials used in literature, mathematics, science, social studies, and the arts. A commonly used elementary science curriculum series, Silver Burdett and Ginn's…

This study, conducted in an Australian institution, investigates the intellectual requirements of the mechanics section of a first-year college physics text. Instructional and prerequisite concepts were classified in terms of the intellectual skills required to understand them. (HM)