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Download full textDurr, Catrina R.; Lahart, Therese E.; Maas, Renee M. – 1999
This report describes a program for developing and improving critical thinking skills in adolescents in order to prepare them for life-long learning. The targeted population consisted of high school math and social studies students from two middle-class communities located in northern Illinois. The students' lack of critical thinking skills was…
Descriptors: Critical Thinking, Formal Operations, High Schools, Language
Zeitoun, Hassan Hussein – 1988
The purpose of this study was to investigate the relationship between the achievement of some abstract concepts in "molecular genetics" and prior knowledge, formal reasoning ability, and sex. The major findings of the study were: (1) prior knowledge had a high significant correlation with the achievement of abstract concepts; (2) the…
Descriptors: Abstract Reasoning, Achievement, Biology, Cognitive Development
