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Mack, Michael R.; Hensen, Cory; Barbera, Jack – Journal of Chemical Education, 2019
Quasi-experiments are common in studies that estimate the effect of instructional interventions on student performance outcomes. In this type of research, the nature of the experimental design, the choice in assessment, the selection of comparison groups, and the statistical methods used to analyze the comparison data dictate the validity of…
Descriptors: Science Instruction, Comparative Analysis, Inferences, Validity
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Rodriguez, Jon-Marc G.; Towns, Marcy H. – Journal of Chemical Education, 2019
Analogies are useful tools instructors can use to help make challenging concepts less abstract by drawing connections to familiar contexts. In this paper we provide an overview of the various analogies published in the education literature that are situated in the context of enzyme kinetics, including narrative-based analogies (analogies intended…
Descriptors: Biochemistry, Kinetics, Science Instruction, Teaching Methods
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Warfa, Abdi-Rizak M. – Journal of Chemical Education, 2016
A meta-analysis of recent quantitative studies that examine the effects of cooperative learning (CL) on achievement outcomes in chemistry is presented. Findings from 25 chemical education studies involving 3985 participants (N[subscript treatment] = 1,845; N[subscript control] = 2,140) and published since 2001 show positive association between…
Descriptors: Meta Analysis, Statistical Analysis, Cooperative Learning, Science Instruction
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Wilson, Sarah Beth; Varma-Nelson, Pratibha – Journal of Chemical Education, 2016
Peer-led team learning (PLTL) research has expanded from its roots in program evaluation of student success measures in Workshop Chemistry to a spectrum of research questions and qualitative, quantitative, and mixed methods study approaches. In order to develop recommendations for PLTL research and propose best practices for faculty who will…
Descriptors: Science Instruction, Small Group Instruction, Teaching Methods, Peer Teaching
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Ye, Li; Lewis, Scott E.; Raker, Jeffrey R.; Oueini, Razanne – Journal of Chemical Education, 2015
Evaluating the impact of Chemistry Education Research articles has historically centered on the impact factor of the publishing journal. With the advent of electronic journal indices, it is possible to determine the impact of individual research articles by the number of citations it has received. However, in a relatively new discipline, such as…
Descriptors: Chemistry, Science Education, Periodicals, Journal Articles
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Jensen, William B. – Journal of Chemical Education, 2014
This historical review traces the origins of the Kimball free-cloud model of the chemical bond, otherwise known as the charge-cloud or tangent-sphere model, and the central role it played in attempts to reform the introductory chemical curriculum at both the high school and college levels in the 1960s. It also critically evaluates the limitations…
Descriptors: Chemistry, Science Instruction, Scientific Concepts, Science Curriculum
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Hinze, Scott R.; Williamson, Vickie M.; Deslongchamps, Ghislain; Shultz, Mary Jane; Williamson, Kenneth C.; Rapp, David N. – Journal of Chemical Education, 2013
Electrostatic potential maps (EPMs) allow for representation of key molecular-level information in a relatively simple and inexpensive format. As these visualizations become more prevalent in instruction, it is important to determine how students are exposed to them and supported in their use. A systematic review of current general and organic…
Descriptors: Organic Chemistry, Chemistry, Textbooks, College Science
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Leber, Phyllis A.; Williams, Benjamin R.; Yoder, Claude H. – Journal of Chemical Education, 2009
Publication rates for chemistry faculty at 55 predominantly undergraduate institutions were ascertained from the number of publications and presentations produced over the past three decades. Comparison of the publications for the last decade with those reported for the earlier decades showed that the majority of institutions surveyed have…
Descriptors: Productivity, College Faculty, Faculty Publishing, Science Education
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Roesky, Herbert W.; Kennepohl, Dietmar – Journal of Chemical Education, 2008
Cartoons are part of a much larger effort by chemical educators to introduce activities to enhance learning and student participation. There are a variety of cartoon types used in teaching that have been evaluated and discussed within the chemical education community including caricatures, comics, and concept cartoons. This article focuses on the…
Descriptors: Cartoons, Chemistry, Science Instruction, Teaching Methods
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Meany, J. E. – Journal of Chemical Education, 2007
Many carbonyl substrates of oxidoreductase enzymes undergo hydration and enolization so that these substrate systems are partitioned between keto, hydrated (gem-diol), and enol forms in aqueous solution. Some oxidoreductase enzymes are subject to inhibition by high concentrations of substrate. For such enzymes, two questions arise pertaining to…
Descriptors: Biochemistry, Science Experiments, Scientific Concepts, Scientific Research
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Andraos, John; Sayed, Murtuzaali – Journal of Chemical Education, 2007
A general analysis of reaction mass efficiency and raw material cost is developed using an Excel spread sheet format which can be applied to any chemical transformation. These new methods can be easily incorporated into standard laboratory exercises.
Descriptors: Organic Chemistry, Science Instruction, College Science, Undergraduate Study
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Centelles, Josep J.; Imperial, Santiago – Journal of Chemical Education, 2005
Although Fischer's convention for stereoisomers is useful for simple molecules, the stereochemistry of complex biochemical molecules is often poorly indicated in textbooks. This article reports on errors in stereochemistry of complex hydrosoluble vitamin B12 molecule. Twenty-five popular biochemistry textbooks were examined for their treatment of…
Descriptors: Textbooks, Biochemistry, Textbook Content, Error Patterns
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Uffelman, Erich S. – Journal of Chemical Education, 2004
Green chemistry closely relates to energy and environmental problems, and includes the promotion of environmental friendly products and systems within the framework of renewable resources. Various websites on green chemistry are reviewed, one of which lists the 12 commandments of this particular subject.
Descriptors: Chemistry, Environmental Education, Web Sites, Science Education
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Long, Steve – Journal of Chemical Education, 2004
The chemistry articles published in the September through December 2003 issues of "The Science Teacher (TST)" are examined. Topics on buoyancy, density, molar volumes of gases, absorption spectra and the electromagnetic spectrum are discussed.
Descriptors: Science Education, Journal Articles, Chemistry, Scientific Concepts
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McGrady, John E. – Journal of Chemical Education, 2004
A presentation of an extensive review of traditional approaches to teaching electron counting is given. The electron-precise clusters are usually taken as a reference point for rationalizing the structures of their electron-rich counterparts, which are characterized by valence electron counts greater than 5n.
Descriptors: Conventional Instruction, Chemistry, Science Education, Teaching Methods
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