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Pedersen, Jon; And Others – Journal of Research in Science Teaching, 1988
Reports the results of two experiments that examined the relative effects of questions requiring decisions, statements providing the decision information to the students, questions not requiring decisions, and control procedures on student's memory for chemistry text reading materials. Discusses results in terms of an elaboration perspective on…
Descriptors: Chemistry, Decision Making, Evaluative Thinking, High Schools

Bredderman, Ted – Journal of Research in Science Teaching, 1984
Results of 11 studies of classroom practices used with activity-based elementary science programs were combined quantitatively using a composite category system. One finding reported is that teachers trained in program use spent less time talking and more on activities than untrained teachers using the programs. (Author/JM)
Descriptors: Classroom Techniques, Elementary Education, Elementary School Science, Interaction

Leonard, William H. – Journal of Research in Science Teaching, 1987
Reports on a study to determine the effects of the presentation of questions inserted into texts for students in introductory biology. Results indicated that students reading the text with questions at the beginning of the paragraph scored significantly higher on achievement tests than the students reading without questions. (TW)
Descriptors: Academic Achievement, Biology, College Science, Concept Formation