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Stronck, David R.; Koller, Geraldine R. – Journal of Research in Science Teaching, 1981
Evaluated the effectiveness of an in-service science program, designed to introduce the Science Curriculum Improvement Study (SCIS) to 35 elementary schools, by measuring teachers' (N=168) use of living materials available from the school district's resource supply center. Findings include no significant increase in material usage by workshop…
Descriptors: Elementary Education, Elementary School Science, Inservice Teacher Education, Program Evaluation

Burkman, Ernest; And Others – Journal of Research in Science Teaching, 1981
The simultaneous effects of two instructional variables of degree of teacher direction (student- versus teacher-directed) and time allowed for study and the student variable of general ability are described for student achievement (N=912) in three life-science instructional modules. (Author)
Descriptors: Academic Ability, Academic Achievement, Aptitude Treatment Interaction, Performance Factors