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Journal of Chemical Education172
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Showing 31 to 45 of 172 results Save | Export
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Diawati, Chansyanah; Liliasari; Setiabudi, Agus; Buchari – Journal of Chemical Education, 2018
Students learned the principles and practice of photometry through project-based learning. They addressed the challenge of measuring the unknown concentration of a colored substance using a photometer they were required to design, build, and test. Then, they used that instrument to carry out the experiment and fulfill the challenge. A photometer…
Descriptors: Student Projects, Teaching Methods, Science Instruction, College Science
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Galloway, Kelli R.; Leung, Min Wah; Flynn, Alison B. – Journal of Chemical Education, 2018
To explore the differences between how organic chemistry students and organic chemistry professors think about organic chemistry reactions, we administered a card sort task to participants with a range of knowledge and experience levels. Beginning students created a variety of categories ranging from structural similarities to process oriented…
Descriptors: Organic Chemistry, Science Instruction, College Science, Graduate Students
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Bhattacharyya, Gautam; Harris, Michael S. – Journal of Chemical Education, 2018
We report our research of seven pairs of students enrolled in the second semester of sophomore-level organic chemistry as they attempted to describe (in their own words) and draw, respectively, three electron-pushing diagrams of three-step reaction mechanisms. The tasks' objective was to accurately reproduce the diagrams based solely on the…
Descriptors: Science Instruction, Organic Chemistry, College Science, Undergraduate Study
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Graulich, Nicole; Schween, Michael – Journal of Chemical Education, 2018
Acquiring conceptual understanding seems to be one of the main challenges students face when studying organic chemistry. Traditionally, organic chemistry presents an extensive variety of chemical transformations, which often lead students to recall an organic transformation rather than apply conceptual knowledge. Strong surface level focus and…
Descriptors: Science Instruction, Scientific Concepts, Organic Chemistry, College Science
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Applebee, Michelle S.; Johanson, Ami P.; Lawler-Sagarin, Kimberly A. – Journal of Chemical Education, 2018
It is essential that chemists develop strong oral communication skills. At the undergraduate level, this requires students to build confidence in their ability to speak without a script and to utilize graphics effectively. We have developed a short activity that helps address common presentation issues such as overuse of text and reading verbatim…
Descriptors: Science Instruction, Chemistry, College Science, Undergraduate Study
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Cox, Charles T., Jr.; Poehlmann, Jennifer Schwartz; Ortega, Caitlin; Lopez, Julio C. – Journal of Chemical Education, 2018
Problem solving and critical thinking are buzzwords used in defining general chemistry learning goals. Assessments including well-structured homework, quizzes, and exams are designed and incorporated to build these skills. Our research expanded upon the types of assessments and analyzed the effect of writing assignments for promoting problem…
Descriptors: Problem Solving, Critical Thinking, Chemistry, Science Instruction
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Dood, Amber J.; Fields, Kimberly B.; Raker, Jeffrey R. – Journal of Chemical Education, 2018
The Lewis acid-base model is key to identifying and explaining the formation and breaking of bonds in a large number of reaction mechanisms taught in the sophomore-level year-long organic chemistry course. Understanding the model is, thus, essential to success in organic chemistry coursework. Concept-inventories exist to identify misunderstandings…
Descriptors: Science Instruction, College Science, Undergraduate Study, Scientific Concepts
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Pinto, Alexandre H. – Journal of Chemical Education, 2018
The experience of designing and teaching a lecture-based course about characterization techniques commonly used in solid state chemistry and materials science in an undergraduate institution is described. Among the techniques studied were the following: powder X-ray diffraction, infrared spectroscopy, Raman spectroscopy, scanning electron…
Descriptors: Science Instruction, College Science, Chemistry, Undergraduate Study
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Murphy, Kevin V.; Turney, Justin M.; Schaefer, Henry F., III. – Journal of Chemical Education, 2018
Preceding even the Hartree-Fock method, molecular integrals are the very foundation upon which quantum chemical molecular modeling depends. Discussions of molecular integrals are normally found only in advanced and technical texts or articles. The objective of the present article is to provide less experienced readers, or students in a…
Descriptors: Teaching Methods, Molecular Structure, Chemistry, Science Instruction
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Webber, Declan M.; Flynn, Alison B. – Journal of Chemical Education, 2018
In this study, we continue our efforts to address students' difficulties understanding organic chemistry, particularly in connecting structure to function and using the language of chemistry to explain how and why reactions occur. For the first time, we have characterized students' work and problem-solving strategies on familiar and unfamiliar…
Descriptors: Organic Chemistry, Problem Solving, Protocol Analysis, Teaching Methods
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Ison, A.; Ison, E. A.; Perry, C. M. – Journal of Chemical Education, 2017
An effective way of teaching undergraduates a full complement of research skills is through a multiweek advanced laboratory experiment. Here we outline a comprehensive set of experiments adapted from current primary literature focusing on organic and inorganic synthesis, catalysis, reactivity, and reaction kinetics. The catalyst,…
Descriptors: Science Instruction, College Science, Undergraduate Study, Chemistry
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Henry, Renee Monica – Journal of Chemical Education, 2017
Reported here is a study of an interactive component to General Chemistry I and General Chemistry II where a new pedagogy for taking notes in class was developed. These notes, called key word created class notes, prompted students to locate information using the Internet guided by a key word. Reference Web sites were added to a next generation of…
Descriptors: Science Instruction, College Science, Undergraduate Study, Web Based Instruction
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Hoben, John P.; Wang, Jianing; Miller, Anne-Frances – Journal of Chemical Education, 2017
A signature of life is that biological molecules occur as a single stereoisomer with respect to each chiral center, and this is echoed in the structures of biological polymers. Thus, circular dichroism (CD) has emerged as a hallmark of biomolecular structures. The tangible and familiar phenomenon of raw egg white's conversion from transparent…
Descriptors: Molecular Biology, Molecular Structure, Science Experiments, Scientific Concepts
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Johnstone, Erik V.; Yates, Mary Anne; Poineau, Frederic; Sattelberger, Alfred P.; Czerwinski, Kenneth R. – Journal of Chemical Education, 2017
The radioactive nature of technetium is discussed using a combination of introductory nuclear physics concepts and empirical trends observed in the chart of the nuclides and the periodic table of the elements. Trends such as the enhanced stability of nucleon pairs, magic numbers, and Mattauch's rule are described. The concepts of nuclear binding…
Descriptors: Physics, Molecular Structure, Introductory Courses, Scientific Concepts
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Tomba, J. Pablo – Journal of Chemical Education, 2017
The use of free energy plots to understand the concept of thermodynamic equilibrium has been shown to be of great pedagogical value in materials science. Although chemical equilibrium is also amenable to this kind of analysis, it is not part of the agenda of materials science textbooks. Something similar is found in chemistry branches, where free…
Descriptors: Energy, Thermodynamics, Teaching Methods, Equations (Mathematics)
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