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Hoyt, Les Leanne – Journal of Alcohol and Drug Education, 1981
Presents an historical perspective of the public view of marijuana and examines current empirical research concerning the consequences of marijuana use on the human fetus. Included are 1979 university survey results which explore respondents' knowledge about the effects of marijuana and the relationship this has to the mass media. (Author)
Descriptors: Abortions, Genetics, History, Information Needs

Meichtry, Yvonne J. – School Science and Mathematics, 1992
Describes three perspectives from which middle school teachers can plan laboratory activities for the purpose of improving students' scientific literacy. Perspectives are the learning cycle approach categorizing activities by stages of development; problem-solving skills approach categorizing activities according to the amount of teacher control;…
Descriptors: Cognitive Development, Cognitive Measurement, Cognitive Style, Developmental Stages