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Journal of Chemical Education10173
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Showing 136 to 150 of 10,173 results Save | Export
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Niemeyer, Emily D.; Zewail-Foote, Maha – Journal of Chemical Education, 2018
The use of electronic response pads or "clickers" is a popular way to engage students and create an active-learning environment, especially within large chemistry courses. We examined students' perceptions of how the clicker affected their learning, participation, and engagement in the classroom, as well as their overall experience…
Descriptors: Gender Differences, Audience Response Systems, Educational Technology, Technology Uses in Education
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Namwong, Pithakpong; Jarujamrus, Purim; Amatatongchai, Maliwan; Chairam, Sanoe – Journal of Chemical Education, 2018
In this article, a low-cost, simple, and rapid fabrication of paper-based analytical devices (PADs) using a wax screen-printing method is reported here. The acid-base reaction is implemented in the simple PADs to demonstrate to students the chemistry concept of a limiting reagent. When a fixed concentration of base reacts with a gradually…
Descriptors: Science Instruction, Chemistry, High Schools, Secondary School Science
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Marek, Keith A.; Raker, Jeffery R.; Holme, Thomas A.; Murphy, Kristen L. – Journal of Chemical Education, 2018
For the past eight years, the ACS Examinations Institute has been developing Anchoring Concepts Content Maps for the different subdisciplines taught throughout the undergraduate curriculum. The structure of the map consists of two top levels that are shared throughout the entire curriculum and two subdiscipline specific levels that contain…
Descriptors: Science Instruction, College Science, Undergraduate Study, Science Tests
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Agnello, Armelinda; Carre, Cyril; Billen, Roland; Leyh, Bernard; De Pauw, Edwin; Damblon, Christian – Journal of Chemical Education, 2018
The analysis of spectroscopic data to solve chemical structures requires practical skills and drills. In this context, we have developed ULg Spectra, a computer-based tool designed to improve the ability of learners to perform complex reasoning. The identification of organic chemical compounds involves gathering and interpreting complementary…
Descriptors: Science Instruction, Spectroscopy, College Science, Undergraduate Study
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Wietsma, Jan Jaap; van der Veen, Jan T.; Buesink, Wilfred; van den Berg, Albert; Odijk, Mathieu – Journal of Chemical Education, 2018
Lab-on-a-chip technology is brought into the classroom through development of a lesson series with hands-on practicals. Students can discover the principles of microfluidics with different practicals covering laminar flow, micromixing, and droplet generation, as well as trapping and counting beads. A quite affordable novel production technique…
Descriptors: Science Instruction, Chemistry, Secondary School Science, High Schools
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Jin, Hao; Qin, Yiheng; Pan, Si; Alam, Arif U.; Dong, Shurong; Ghosh, Raja; Deen, M. Jamal – Journal of Chemical Education, 2018
pH determination is an essential experiment in many chemistry laboratories. It requires a potentiometric instrument with extremely low input bias current to accurately measure the voltage between a pH sensing electrode and a reference electrode. In this technology report, we propose an open-source potentiometric instrument for pH determination…
Descriptors: Science Experiments, Science Laboratories, Laboratory Experiments, Chemistry
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Ghanem, Eman; Long, S. Reid; Rodenbusch, Stacia E.; Shear, Ruth I.; Beckham, Josh T.; Procko, Kristen; DePue, Lauren; Stevenson, Keith J.; Robertus, Jon D.; Martin, Stephen; Holliday, Bradley; Jones, Richard A.; Anslyn, Eric V.; Simmons, Sarah L. – Journal of Chemical Education, 2018
Innovative models of teaching through research have broken the long-held paradigm that core chemistry competencies must be taught with predictable, scripted experiments. We describe here five fundamentally different, course-based undergraduate research experiences that integrate faculty research projects, accomplish ACS accreditation objectives,…
Descriptors: Chemistry, Science Instruction, College Science, Undergraduate Study
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Hoffmann, Heiko; Tausch, Michael W. – Journal of Chemical Education, 2018
An inexpensive self-made apparatus for photochemical experiments was developed and has been tested to facilitate the inclusion of photoreactions in undergraduate teaching laboratories despite budget constraints. The core setup allowing the selection of defined wavelengths in the visible and UV regions is made of commercially available components…
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Teaching Methods
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Kimaru, Irene W.; Corigliano, Anthony T.; Zhao, Fang – Journal of Chemical Education, 2018
Potency assays of pharmaceutical products are designed to measure the amount of an active ingredient in a sample. They are important quality control tools for all medications, including intravenous (IV) admixture fluid bags which are commonly prepared by pharmacists in healthcare facilities via extemporaneous compounding. An interdisciplinary…
Descriptors: Chemistry, Science Instruction, Interdisciplinary Approach, Transformative Learning
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Caicedo, Obradith; Devia-Ramirez, Jency; Malagón, Andrés – Journal of Chemical Education, 2018
Adsorption of methylene blue and malachite green was carried out using "Luffa cylindrica" sponges as adsorbing material. We provide a very illustrative exercise about the use of common natural materials requiring little preparation to solve environmental tasks in a routine laboratory situation such as using dyes. In addition, the…
Descriptors: Science Instruction, Science Laboratories, Chemistry, Scientific Concepts
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Martin, James D.; Nock, Katherine A. – Journal of Chemical Education, 2018
The National Research Council's Framework for K-12 Science Education articulates the need to shift science curricula from being a collection of discrete facts to curricula that integrate core ideas and practices. To help teachers better integrate content and to respond to expressed frustration regarding extensive lists of standards often presented…
Descriptors: Chemistry, Science Instruction, Standards, Teaching Methods
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Pratt, Justin M.; Yezierski, Ellen J. – Journal of Chemical Education, 2018
Informal chemistry education/chemistry outreach is ubiquitous with the chemical enterprise. However, little research has focused on the planning, implementation, or evaluation of these events. Results from a previous study suggest that college students involved with collegiate chapters of the American Chemical Society and Alpha Chi Sigma are…
Descriptors: College Students, Peer Teaching, Science Instruction, Chemistry
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Mitchell, Miguel O. – Journal of Chemical Education, 2018
Although the potent effects of cation-p interactions for stabilizing protein structure and binding ligands to proteins have been reported in the chemical literature for over two decades, there are no undergraduate biochemistry textbooks covering this important noncovalent attractive force. In an attempt to remedy this situation, this primer…
Descriptors: Science Instruction, College Science, Undergraduate Study, Web Based Instruction
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Smith, Garon C.; Hossain, Md Mainul; Barry, Daniel D. – Journal of Chemical Education, 2018
Diluting a system with metal complexes can sometimes cause free metal ions to increase in concentration. This paper describes "metal ion anti-buffering", a situation in which free metal ion concentrations rapidly increase as system dilution drives dissociation. It only occurs under excess free ligand conditions when a solution is…
Descriptors: Science Instruction, College Science, Chemistry, Computer Assisted Instruction
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Ruder, Suzanne M.; Stanford, Courtney – Journal of Chemical Education, 2018
Several active-learning pedagogies involve groups of students working together to construct their own understanding of course content. In these classrooms, the instructor serves as a facilitator of learning, by interacting with every group, engaging students in discussions, answering questions, and providing formative feedback. This type of…
Descriptors: Teaching Assistants, Active Learning, Undergraduate Students, College Science
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