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Mastery, insight, and the teaching of chemistry (1994)

Beall, Herbert ; Trimbur, John ; Weininger, Stephen J.

Springer

Journal of science education and technology 3 (1994), S. 99-105

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ISSN: 1573-1839

Keywords: Chemical education ; history of chemistry ; tacit knowledge ; constructivist approach to learning

Source: Springer Online Journal Archives 1860-2000

Topics: Natural Sciences in General , Technology

Notes: Abstract The learning of chemistry is described as a process analogous to the process of making chemical discoveries. Historical examples are given to show how chemists have used their insight to break out of a conceptual loop in order to advance the science. Having the insight to make the intuitive leap necessary to break a conceptual loop is as important as having the mastery of the pertinent facts. As in making chemical discoveries, learning elementary chemistry requires developing insight as well as acquiring mastery of the facts. However, current general chemistry teaching tends to teach facts first and insight later. Suggestions for improving this situation so that insight and facts are learned together are given. Finally, the nature of insight is probed more deeply and presented as a two-step process where the first step is an evaluation of the perceptions about science which are held. Once the student, teacher, or researcher has a clear evaluation of the validity of the perceptions that he or she holds, further significant progress toward understanding or scientific discovery is possible.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01575189

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Unsaturated polyoxalates: Synthesis and mass spectral study of their thermal behavior (1990)

Thibeault, Bryan ; Stickles, Eleanor M. ; Weininger, Stephen J. ; [et al.]

Bognor Regis [u.a.] : Wiley-Blackwell

Journal of Polymer Science Part A: Polymer Chemistry 28 (1990), S. 1361-1376

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ISSN: 0887-624X

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The thermal decomposition of a series of four saturated and unsaturated C4 polyoxalates shows competing modes of depolymerization, fragmentation to polyenes and CO2, and crosslinking. These decompositions, which were studied by DSC and TGA, and intensively by EI- and CI-MS, could be rationalized in terms of the structure of the alcohol portions of the polyesters. The polymers were synthesized by ester interchange, which gave materials with DP values of 5-32.

Additional Material: 11 Ill.