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Children's Models of Understanding of Two Major Global Environmental Issues (Ozone Layer and Greenhouse Effect).
Peer reviewed Peer reviewed
Boyes, Edward; Stanisstreet, Martin – Research in Science and Technological Education, 1997
Aims to quantify the models that 13- and 14 year-old students hold about the causes of the greenhouse effect and ozone layer depletion. Assesses the prevalence of those ideas that link the two phenomena. Twice as many students think that holes in the ozone layer cause the greenhouse effect than think the greenhouse effect causes ozone depletion.…
Descriptors: Attitudes, Cognitive Structures, Concept Formation, Elementary Secondary Education
Portuguese Students' Understanding at Ages 10-11 and 14-15 of the Origin and Nature of the Earth and the Development of Life.
Peer reviewed Peer reviewed
Marques, Luis; Thompson, David – Research in Science and Technological Education, 1997
Uses interviews and a written questionnaire to probe students' ideas on the origin of earth and life on earth. A significant number of commonly held misconceptions were prevalent in the sample (N=493). Provides guidelines to assist learners in challenging existing views. Contains 64 references. (DDR)
Descriptors: Attitudes, Biology, Cognitive Structures, Concept Formation
Pupils' Ideas on Conservation during Changes in the State of Water.
Peer reviewed Peer reviewed
Hatzinikita, Vassilia; Koulaidis, Vasilis – Research in Science and Technological Education, 1997
Explores both the qualitative and quantitative dimensions of pupils' ideas related to conservation during state changes of water. Analysis of questionnaire data indicates that qualitative understanding precedes quantitative. Contains 18 references. (DDR)
Descriptors: Chemistry, Cognitive Structures, Concept Formation, Conservation (Concept)