Word association techniques were used to examine the growth of biological knowledge over a period of years, from fourth-grade to college students. Results were analyzed by classifying stimulus-response word pairs according to the nature of the relationship between the words in each pair. Three hypotheses were tested: (1) the proportion of enactive…

The effects of a visual advance organizer on a biology concept learning task among fifth graders (n=48) was investigated. After exposure to the advance organizer, three levels of learning outcomes-knowledge, comprehension, and application-were evaluated. Findings of the study are discussed in terms of the assimilation theory, aptitude-treatment…

The purpose of this investigation was to determine the effect of a middle school inservice course emphasizing science process skills on the development of integrated process skills and on logical thinking. Twenty-two middle-school science teachers from the Detroit Public Schools participated in this project. A "Resourcebook of Science Process…