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Besvinick, Sidney L. – Educational Leadership, 1988
Contends that school science programs should return to the visionary programs of the 1960's, which developed logical thinking and problem solving. These have since given way to a barren emphasis on fact acquisition and "cookbook" lab activities. (TE)
Descriptors: Curriculum Design, Elementary Secondary Education, Logical Thinking, Problem Solving

Yager, Robert E. – Educational Leadership, 1988
Argues that science programs developed during the 1960's should be replaced by "science/technology/society" (S/T/S) programs, which build on students' curiosity and concern about local problems. (TE)
Descriptors: Curriculum Design, Elementary Secondary Education, Logical Thinking, Problem Solving
Levine, David I.; Linn, Marcia C. – 1976
Research on the development of ability to control variables during adolescence is reviewed. The first section discusses studies by Piaget and his collaborators, replications of Piaget's studies, and related studies by other investigators. Factors which influence performance on controlling variables tasks are delineated; the existence of Piaget's…
Descriptors: Cognitive Development, Cognitive Processes, Elementary School Science, Elementary Secondary Education