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Journal of Chemical Education10173
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Showing 2,041 to 2,055 of 10,173 results Save | Export
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Selco, Jodye I.; Bruno, Mary; Chan, Sue – Journal of Chemical Education, 2012
A hands-on, minds-on inquiry chemistry experiment was developed for use in K-12 schools that enables students to combine the chemicals of their choice and observe the results. The chemistry involved is water based and builds upon acid-base, double displacement, and iodometric detection of starch reactions. Chemicals readily available in the…
Descriptors: Chemistry, Science Instruction, Elementary Secondary Education, Hands on Science
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Wei, Silin; Liu, Xiufeng; Wang, Zuhao; Wang, Xingqiao – Journal of Chemical Education, 2012
Research suggests that difficulty in making connections among three levels of chemical representations--macroscopic, submicroscopic, and symbolic--is a primary reason for student alternative conceptions of chemistry concepts, and computer modeling is promising to help students make the connections. However, no computer modeling-based assessment…
Descriptors: Measurement, Chemistry, Foreign Countries, Correlation
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Williamson, Vickie M.; Lane, Sarah M.; Gilbreath, Travis; Tasker, Roy; Ashkenazi, Guy; Williamson, Kenneth C.; Macfarlane, Ronald D. – Journal of Chemical Education, 2012
A prior study showed that students best make predictions about the outcome of opening a valve between two flasks containing a fluid or vacuum when they view both a demonstration video and a particulate animation, but the study showed no influence from the order in which these visualizations were used. The purpose of this current research was to…
Descriptors: Academic Ability, Chemistry, Animation, Video Technology
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Murphy, Kristen – Journal of Chemical Education, 2012
Personal response systems ("clickers") have become an important means for instructors to gauge student learning in large lecture classes. In addition to measuring students' performance on a particular question, requesting a measure of mental effort from students allows for richer data concerning student learning. This information can be…
Descriptors: Evaluation Methods, Lecture Method, Measurement Equipment, College Science
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Cooper, Melanie M.; Underwood, Sonia M.; Hilley, Caleb Z.; Klymkowsky, Michael W. – Journal of Chemical Education, 2012
Previously, we found that: (i) many students were unable to construct representations of simple molecular structures; (ii) a majority of students fail to make the important connection between these representations and macroscopic properties of the material; and (iii) they were unable to decode the information contained in such representations.…
Descriptors: Chemistry, Molecular Structure, Secondary School Science, High Schools
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Hein, Sara M. – Journal of Chemical Education, 2012
A student-centered learning technique, process-oriented, guided-inquiry learning (POGIL), has been developed as a pedagogical technique that facilitates collaborative and cooperative learning in the chemistry classroom. With the use of this technique, students enhance their higher-order thinking skills and process skills synergistically. In…
Descriptors: Academic Achievement, Thinking Skills, Grade Point Average, Cooperative Learning
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Pinto, Gabriel – Journal of Chemical Education, 2012
When students are introduced to the ways in which atoms are arranged in crystal structures, transposing the textbook illustrations into three-dimensional structures is difficult for some of them. To facilitate this transition, this article describes an approach to the study of the structure of solids through a well-known monument, the Atomium in…
Descriptors: Chemistry, Physical Sciences, Introductory Courses, College Science
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Grove, Nathaniel P.; Cooper, Melanie M.; Cox, Elizabeth L. – Journal of Chemical Education, 2012
The use of the curved-arrow notation to depict electron flow during mechanistic processes is one of the most important representational conventions in the organic chemistry curriculum. Our previous research documented a disturbing trend: when asked to predict the products of a series of reactions, many students do not spontaneously engage in…
Descriptors: Organic Chemistry, College Science, Problem Solving, Thinking Skills
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Skibinski, Erik S.; DeBenedetti, William J. I.; Ortoll-Bloch, Amnon G.; Hines, Melissa A. – Journal of Chemical Education, 2015
An inexpensive light board projection system that enables lecturers to face the classroom while lecturing is described. The lecturer's writing appears in high contrast in front of the lecturer; it is never blocked by the lecturer, even while writing. The projected image displays both the writing as well as the lecturer's gestures and facial…
Descriptors: Science Instruction, Educational Technology, Technology Uses in Education, College Science
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Knutson, Theodore R.; Knutson, Cassandra M.; Mozzetti, Abbie R.; Campos, Antonio R.; Haynes, Christy L.; Penn, R. Lee – Journal of Chemical Education, 2015
Chemical kinetic experiments to determine rate laws are common in high school and college chemistry courses. For reactions involving a color change, rate laws can be determined experimentally using spectrophotometric or colorimetric equipment though this equipment can be cost prohibitive. Previous work demonstrated that inexpensive handheld camera…
Descriptors: Handheld Devices, Photography, Kinetics, Chemistry
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Mottishaw, Jeffery D.; Erck, Adam R.; Kramer, Jordan H.; Sun, Haoran; Koppang, Miles – Journal of Chemical Education, 2015
Frederick Sanger's early work on protein sequencing through the use of colorimetric labeling combined with liquid chromatography involves an important nucleophilic aromatic substitution (S[subscript N]Ar) reaction in which the N-terminus of a protein is tagged with Sanger's reagent. Understanding the inherent differences between this S[subscript…
Descriptors: Science Instruction, Organic Chemistry, College Science, Computer Uses in Education
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Luxford, Cynthia J.; Holme, Thomas A. – Journal of Chemical Education, 2015
Introductory chemistry has long been considered a service course by various departments that entrust chemistry departments with teaching their students. As a result, most introductory courses include a majority of students who are not chemistry majors, and many are health and science related majors who are required to take chemistry. To identify…
Descriptors: Science Instruction, Chemistry, College Science, Undergraduate Study
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Feliciano-Ramos, Ileana; Casan~as-Montes, Barbara; García-Maldonado, María M.; Menendez, Christian L.; Mayol, Ana R.; Díaz-Vazquez, Liz M.; Cabrera, Carlos R. – Journal of Chemical Education, 2015
Nanotechnology allows the synthesis of nanoscale catalysts, which offer an efficient alternative for fuel cell applications. In this laboratory experiment, the student selects a cost-effective anode for fuel cells by comparing three different working electrodes. These are commercially available palladium (Pd) and glassy carbon (GC) electrodes, and…
Descriptors: Science Instruction, Molecular Structure, Technology, Science Laboratories
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Cooper, Melanie M. – Journal of Chemical Education, 2015
There is a strong case to be made that the goal of science is to develop explanatory theories that help us organize our understanding and make predictions about the natural world. What then, is the goal of science education? What is it that we want students to know and be able to do, and how do we achieve these goals? Here, I argue that one…
Descriptors: Science Education, Educational Objectives, Chemistry, Curriculum Development
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Bussey, Katherine A.; Cavalier, Annie R.; Connell, Jennifer R.; Mraz, Margaret E.; Holderread, Ashley S.; Oshin, Kayode D.; Pintauer, Tomislav – Journal of Chemical Education, 2015
An integrated laboratory experiment applying concepts and techniques developed in organic chemistry, inorganic chemistry, and instrumental analysis is presented for use by students interested in undergraduate research. The experiment incorporates some advanced laboratory practices such as multistep organic synthesis and purification, detailed…
Descriptors: Undergraduate Students, College Science, Organic Chemistry, Inorganic Chemistry
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