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Showing 1 to 15 of 107 results Save | Export
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Nagel, Thomas; Mentzer, Casey; Kivistik, P. Mike – Journal of Chemical Education, 2019
This experiment provides students with a thorough understanding of electrolysis and the parameters that most greatly impact optimization of this process. In this laboratory exercise, students will focus on the anodization of bismuth metal to develop thin oxide films. When designing an electrolytic cell devoted to anodization, there are several…
Descriptors: Cytology, Science Instruction, Laboratory Experiments, Teaching Methods
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Esselman, Brian J.; Block, Stephen B. – Journal of Chemical Education, 2019
The VSEPR model has well-established limitations in its ability to represent accurate molecular and electronic geometries of simple molecules, which can create a significant need for students to relearn structure and bonding concepts in organic chemistry. We present an alternate method for describing molecular geometries and electronic structures…
Descriptors: Science Instruction, College Science, Undergraduate Study, Scientific Concepts
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Costa, Samuel C.; Fernandes, Julio C. B. – Journal of Chemical Education, 2019
We developed a simple device to teach the concept of pH to visually impaired people through an experimental approach. An interface between a glass electrode and an open-source electronics platform based on easy-to-use hardware and software (Arduino Uno) was designed using an operational amplifier of ultralow input current. A headphone connected to…
Descriptors: Science Instruction, Scientific Concepts, Visual Impairments, Teaching Methods
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Carmel, Justin H.; Herrington, Deborah G.; Posey, Lynmarie A.; Ward, Joseph S.; Pollock, Amy M.; Cooper, Melanie M. – Journal of Chemical Education, 2019
Over the past 20 years research on reform efforts aimed at the chemistry laboratory has focused on different aspects of students' experiences including increasing content knowledge, improving student attitudes toward chemistry, incorporating inquiry activities, and providing students a hands-on experience related to the chemistry concepts learned…
Descriptors: Chemistry, Science Instruction, Teaching Methods, Educational Change
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Ferraro, Giovanni; Fratini, Emiliano – Journal of Chemical Education, 2019
A procedure for one-pot preparation and characterization of silver 1D nanostructures is described. The main advantages of this synthetic approach are the simplicity and reproducibility, where the size of the final product can be controlled just by changing the reaction time. This experiment is designed as a laboratory introduction to colloidal…
Descriptors: Color, Science Instruction, Teaching Methods, Undergraduate Students
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Kondinski, Aleksandar; Parac-Vogt, Tatjana N. – Journal of Chemical Education, 2019
Single-type, 8-fold-grooved, commercially accessible interlocking disks (ILDs) have been used for modeling of complex polyhedral and reticular topologies with relevance to inorganic and hybrid materials. The assembly of complex topologies relies on the preparation of secondary building units (SBUs), which exhibit different connectivity than that…
Descriptors: Chemistry, Science Instruction, Scientific Concepts, Models
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Farhat, Naha J.; Stanford, Courtney; Ruder, Suzanne M. – Journal of Chemical Education, 2019
Assessments can provide instructors and students with valuable information regarding student's level of knowledge and understanding, in order to improve both teaching and learning. In this study, we analyzed departmental assessment quizzes given to students at the start of Organic Chemistry 2, over an eight year period. This assessment quiz was…
Descriptors: Organic Chemistry, Teaching Methods, Science Instruction, Science Tests
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Scott, Dane; Firth, Daniel – Journal of Chemical Education, 2019
Statistical process control (SPC) is used in the chemical industry to monitor manufacturing and laboratory processes to ensure quality and compliance with regulatory requirements. Control charts are a key tool used in this monitoring. Industrial job postings desire experience with SPC. Most undergraduates entering the workforce have no exposure,…
Descriptors: Chemistry, Science Instruction, Scientific Concepts, Science Laboratories
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Duangpummet, Prempree; Chaiyen, Pimchai; Chenprakhon, Pirom – Journal of Chemical Education, 2019
An inquiry-based laboratory learning unit was designed to enhance high school students' understanding of the application of lipase as a catalyst to synthesize isoamyl and geranyl ester derivatives as well as to promote their understanding and positive perceptions of green chemistry. The learning unit consisted of three laboratories and a final…
Descriptors: Science Laboratories, Secondary School Science, High Schools, Chemistry
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Kizilaslan, Aydin; Sozbilir, Mustafa; Zorluoglu, Seraceddin Levent – Journal of Chemical Education, 2019
Science education could be made more accessible to students with visual impairments through collaboration and specific adaptation in both the science classrooms and laboratories. For example, by providing simple adaptations or doing some essential modifications, students can gain experience with measuring, balancing, and weighing a variety of…
Descriptors: Science Instruction, Visual Impairments, Teaching Methods, Academic Accommodations (Disabilities)
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Zorrilla, David; Sánchez-Márquez, Jesús; García, Víctor; Fernández, Manuel – Journal of Chemical Education, 2019
Teaching and understanding the concepts related to ideal gases and their transformations is relatively uncomplicated. However, for science and engineering students, reaching an understanding of and assimilating the concepts related to real gases and their transformations is a more difficult goal. Backed by their considerable experience teaching…
Descriptors: Computer Simulation, Teaching Methods, Science Instruction, Scientific Concepts
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Cruzeiro, Vinícius Wilian D.; Gao, Xiang; Kleiman, Valeria D. – Journal of Chemical Education, 2019
The ready availability of interactive platforms has produced a new generation of students able to utilize computer-based learning tools with ease and comfort. The potential to better "explore by yourself" the lecture material permits students to have an enhanced learning experience and stimulates them to tinker with equation parameters…
Descriptors: Science Instruction, Quantum Mechanics, Chemistry, College Science
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Le, Christine M.; Morra, Barbora – Journal of Chemical Education, 2019
The tutorials of a second-year undergraduate organic chemistry course have been modified to include a retrosynthetic exercise in conjunction with a Molecule of the Week (MoW) challenge. In contrast to the original tutorial assignments in the course, which primarily focused on completing simple reaction roadmaps, the new tutorials place a heavier…
Descriptors: Organic Chemistry, Science Instruction, Teaching Methods, Molecular Structure
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Bain, Kinsey; Rodriguez, Jon-Marc G.; Towns, Marcy H. – Journal of Chemical Education, 2019
The themes discussed in this study relate to how students reason about the information encoded in rate constants, which is important for developing a deep understanding of chemical kinetics at the molecular level. This study is part of a larger project centered more generally on students' understanding and use of mathematics in chemical kinetics.…
Descriptors: Science Instruction, Teaching Methods, Molecular Structure, Scientific Concepts
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Minkiewicz, Piotr; Darewicz, Malgorzata; Iwaniak, Anna – Journal of Chemical Education, 2018
A simple equation to calculate the oxidation states (oxidation numbers) of individual atoms in molecules and ions may be introduced instead of rules associated with words alone. The equation includes two of three categories of bonds, classified as proposed by Goodstein: number of bonds with more electronegative atoms and number of bonds with less…
Descriptors: Science Instruction, Secondary School Science, High Schools, College Science
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