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Critical thinking and biology instruction.

Science teaching, in particular, is devoting more attention to the need for teaching methods and strategies which can develop students' ability to think logically, analyze, and utilize basic concepts to draw conclusions and make predictions. A model using angiosperm seasonal studies was developed. This model maintains a balance between teaching information content and enhancing higher order thinking skills. Seasonal studies of two plant species, Podophyllum peltatum and Arisaema triphyllum were carried out. Observations of the shoot apices are described based on an analysis of the theories on shoot apical organization. Measurements and descriptions of apical dome height and width of the species were obtained to serve as a basis for classroom discussions concerning the changes in apical organization over a one year period. The mean height of the apical dome Arisaema triphyllum is 28.45[micro] and the mean width of the apical dome is 125.05[micro]. Results of these studies were used to prepare a multi-media presentation which allowed students to make observations and generate hypotheses about shoot development. During classroom discussion, fundamental anatomical and morphological questions were generated to be used as the basis for student laboratory projects.
David J. Stroup
Department of Biology
Francis Marion University

John L. Frola
Department of Biology
The University of Akron
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Author:Stroup, David J.; Frola, John L.
Publication:Bulletin of the South Carolina Academy of Science
Article Type:Brief Article
Geographic Code:1USA
Date:Jan 1, 2002
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