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McClain, Janis J. – 1972
To further evaluate a method of content analysis and aid in identifying scientific concepts appropriate at the elementary level, science material in a standard textbook series was examined. This paper reports and summarizes the analysis of sections of the California state-adopted textbook series, "Concepts in Science." The conceptual…
Descriptors: Concept Teaching, Content Analysis, Curriculum Evaluation, Elementary School Science

Skoog, Gerald – Science Education, 1984
Determined coverage given to 44 topics related to the study of evolution in 105 high school biology textbooks published between 1900 and 1983. Considers trends in popular and Biological Sciences Curriculum Study (BSCS) textbooks, coverage of evolution in first editions, coverage of creationism, chapter titles and placement, and other areas. (JN)
Descriptors: Biology, Content Analysis, Creationism, Evolution

Skoog, Gerald – Science Education, 1979
Ninety-three secondary school biology textbooks, identified in the appendix bibliography, were analyzed to determine the extent of emphasis of 44 topics concerned with the study of evolution. (HM)
Descriptors: Biological Sciences, Content Analysis, Educational Research, Evolution