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  Home > JCE Print > Journal of Chemical Education > Issues > 2008  > March  >
In the Laboratory
Pennies and Eggs: Initiation into Inquiry Learning for Preservice Elementary Education Teachers
Donald J. Wink and Jeong Hye Hwang-Choe
Department of Chemistry, University of Illinois at Chicago, Chicago, IL 60607
Cover
March 2008
Vol. 85 No. 3
p. 396

Abstract
Two labs incorporating the Science Writing Heuristic are described that introduce scientific inquiry in a course for preservice students majoring in elementary education. One lab adapts a previously described discovery learning opportunity involving the change in composition and mass of pennies in 1982. The other involves the use of flotation methods to separate hard-boiled and uncooked eggs based on density. Evidence for student engagement with the method is presented, along with analysis of persistent problems with the concept of density revealed by students' writing about their understandings.

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Student handouts; Instructor notes
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Citation
Wink, Donald J.; Hwang-Choe, Jeong Hye. J. Chem. Educ. 2008, 85, 396.
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Keywords
Aqueous Solution Chemistry; Communication / Writing; First-Year Undergraduate / General; High School / Introductory Chemistry; Inquiry-Based / Discovery Learning; Laboratory Instruction; Materials Science; Solutions / Solvents
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History
Created:
Last Updated:
2/4/2008
2/12/2008
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Experiments, laboratory exercises, lecture demonstrations, and other descriptions of the use of chemicals, apparatus, instruments, computers, and computer interfaces are presented in the Journal of Chemical Education as illustrative of new or improved ideas or concepts in chemistry instruction and are directed at qualified teachers. Although every effort is made to assure and encourage safe practices and safe use of chemicals, the Journal of Chemical Education cannot assume responsibility for uses made of its published materials. Many chemicals are hazardous. Precautions for the safe use of hazardous chemicals and directions for their proper disposal are described in the Material Safety Data Sheets and on the labels. We strongly urge all those planning to use materials from our pages to make choices and to develop procedures for laboratory and classroom safety in accordance with local needs and situations.
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