“…Two types of science texts are most commonly found in elementary classroomstextbooks, created by the publishing industry, and trade books, generally the work of a single author, marketed to the general public. Although science textbooks have received criticisms for years on a host of topics (e.g., AAAS, 1989;Eide & Heikkinen, 1998;Hubisz, 2001;Mallinson, Sturm, & Patton, 1950;Wellington, 2001), the fact remains that they are used by the large majority of elementary school teachers (Weiss, Banilower, McMahon, & Smith, 2001). Thus, it was reasonable for Newton and colleagues to turn to textbooks as they sought to locate another source for explanations in science classrooms.…”