The first volume of a two-volume final report provides a thorough description of the rationale, development, content, and materials in the ISCS project. Chapter one examines the rationale for the project and the developmental procedures used, including underlying assumptions about junior high schools, students and teachers, and reviews the general…

Determined were the kinds of physics study items used, and the emphasis placed per item, by both the Physical Science Study Committee (PSSC) teachers and the teachers of traditional physics materials in the state of Nebraska. A questionnaire was sent to teachers from the largest 100 schools, ranked by total enrollment, and to fifty other teachers…