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Journal of Chemical Education10238
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Showing 166 to 180 of 10,238 results Save | Export
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Stowe, Ryan L.; Herrington, Deborah G.; McKay, Robert L.; Cooper, Melanie M. – Journal of Chemical Education, 2019
Widespread adoption of the Next Generation Science Standards (NGSS) has created a need to carefully consider how chemistry curricula should support students in understanding the world in terms of atomic/molecular behavior. We argue that Standards-aligned coursework should be "core-ideas centered" due to evidence that curricula embedded…
Descriptors: High School Students, Science Instruction, Chemistry, Standards
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Hudson-Smith, Natalie V.; Cahill, Meghan S.; Klein, Nathan D.; Krause, Miriam O.P.; Haynes, Christy L. – Journal of Chemical Education, 2019
Although nanotechnology lessons are increasingly integrated into curricula, students still face significant challenges in understanding the characterization techniques used to investigate nanotechnology. Many characterization techniques, such as transmission electron microscopy (TEM), are prohibitively expensive for primarily undergraduate…
Descriptors: Hands on Science, Chemistry, Technology, Molecular Structure
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Schweitzer, Julie; Merad, Souhila; Schrodj, Gautier; Gall, Florence Bally-Le; Vonna, Laurent – Journal of Chemical Education, 2019
A laboratory experiment for the determination of the cross-linking density of silicone elastomers is described on the basis of swelling experiments and mechanical tests. In the experiment, the macroscopic swelling and mechanical behaviors of the elastomers were discussed as a function of the cross-linking density, which can be easily controlled by…
Descriptors: Chemistry, Science Experiments, Laboratory Experiments, Hands on Science
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da Silva, Rodrigo Sens; Borges, Endler Marcel – Journal of Chemical Education, 2019
Here, students determine aspirin (acetylsalicylic acid) mass in pharmaceutical tablets using a colorimetric method. Aspirin, salicylate, and salicylic acid do not absorb visible light. Thus, in alkaline medium, acetylsalicylic acid was hydrolyzed to salicylate; then, it was reacted with an acidic Fe(III) solution, and a violet complex was formed.…
Descriptors: Spreadsheets, Drug Therapy, Light, Chemistry
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Oliveira, Brenno R. M.; Vailati, André L.; Luiz, Edinara; Böll, Fabrine G.; Mendes, Samuel R. – Journal of Chemical Education, 2019
This study discusses the potential of the Jigsaw cooperative method in the teaching of organic chemistry. Such an approach was used in five classes with Brazilian secondary school students. Results indicate better learning regarding the development of knowledge about the nomenclature, application, and identification of functional groups at the…
Descriptors: Cooperative Learning, Science Instruction, Teaching Methods, Organic Chemistry
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Bierenstiel, Matthias; Snow, Kathy – Journal of Chemical Education, 2019
The Periodic Table of the Elements (PTE) is arguably one of the most central topics in chemistry. This article provides a critical review of current teaching practices of the PTE to high-school students and undergraduate university students. It also provides a new teaching model, the "periodic universe", for understanding of the PTE…
Descriptors: Chemistry, Science Instruction, Teaching Methods, High School Students
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Stieff, Mike – Journal of Chemical Education, 2019
Inquiry activities with component visualization tools are increasingly prevalent in K-12 STEM classrooms; however, evidence of their efficacy has primarily been collected from controlled laboratory studies that lack ecological validity or from small-scale classroom interventions that assess learning outcomes proximal to the intervention. Here, the…
Descriptors: Outcomes of Education, Science Achievement, Secondary School Science, Chemistry
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Josephson, Philip; Nykvist, Viktor; Qasim, Wafa; Blomkvist, Björn; Dinér, Peter – Journal of Chemical Education, 2019
Green chemistry and sustainable development have become increasingly important topics for the education of future chemists, but the implementation of green chemistry into the chemistry curriculum requires significant efforts from teachers, especially in laboratory education. A student-driven development of a greener synthesis of Lidocaine was…
Descriptors: Undergraduate Students, College Science, Science Instruction, Sustainable Development
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Bibic, Lucka; Druskis, Justinas; Walpole, Samuel; Angulo, Jesus; Stokes, Leanne – Journal of Chemical Education, 2019
Virtual reality (VR) technology has been capturing the public imagination for decades. VR software applications that allow for interactive immersion are emerging as a renowned medium in many areas, including educating the public in biochemistry-related subjects via public engagement events. This report provides information about an immersive,…
Descriptors: Computer Simulation, Educational Technology, Technology Uses in Education, Computer Software
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Fisher, Aidan A.E. – Journal of Chemical Education, 2019
Computational approaches toward simulating chemical systems and evaluating experimental data has gathered great momentum in recent years. The onset of more powerful computers and advanced software has been instrumental to this end. This manuscript presents a hands-on activity which trains students in basic coding skills within the Matlab…
Descriptors: Computer Software, Chemistry, Quantum Mechanics, Energy
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Stowe, Ryan L.; Herrington, Deborah G.; McKay, Robert L.; Cooper, Melanie M. – Journal of Chemical Education, 2019
Connecting the behavior of invisible (to the naked eye) particles governed by the principles of quantum mechanics to the world we can see and touch requires a host of inferences, almost none of which can be extrapolated from experience. Molecular-level sensemaking thus relies upon intellectual resources that must be developed in large part by…
Descriptors: Chemistry, Science Curriculum, High School Students, Standards
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McArdle, Patrick – Journal of Chemical Education, 2019
This article contrasts the normal method for drawing Lewis structures with a two-step systematic approach. The latter approach uses a known molecular connectivity and a knowledge of the number of valence electrons that each atom possesses to visualize bonds that are formed by pairing electrons, one from each atom. This process is repeated until at…
Descriptors: Chemistry, Science Instruction, Computer Assisted Instruction, Freehand Drawing
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Arnbjerg, Jacob; Khataee, Amirreza; Breitenbach, Thomas; Thøgersen, Jan; Christiansen, Sigurd; Mortensen, Henriette Gavlshøj; Bilde, Merete; Hougaard, Rikke Frøhlich; Bentien, Anders – Journal of Chemical Education, 2019
On the basis of recent advances in battery research and technology, we have developed a novel laboratory exercise centered on an organic--inorganic battery using the redox chemistry of the organic molecule anthraquinone-2,7-disulfonic acid disodium salt (AQDS). Although most commercially available batteries are based on inorganic redox couples,…
Descriptors: Science Instruction, Science Laboratories, Chemistry, Undergraduate Study
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Kellamis, Natalia M.; Yezierski, Ellen J. – Journal of Chemical Education, 2019
With the introduction of the Next Generation Science Standards (NGSS), curriculum and professional development have had to change rapidly to fit the new standards. To aid with those changes, the EQuIP rubric was released as a guide for NGSS alignment. This study aims to evaluate lesson plans developed through the Target Inquiry project to…
Descriptors: Academic Standards, Chemistry, Science Education, Curriculum Evaluation
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Cai, Longfei; Zhang, Xiaolin; Luo, Liquan; Lin, Huibin; Chen, Jinhua; Xu, Chunxiu; Zhong, Minghua; Liao, Xiaoning – Journal of Chemical Education, 2019
We described a simple method for detection of Fe on a thread-based analytical device. Fe reacts with 1,10-phenanthroline to form a colored band on a cotton thread; the length was measured to quantify the contents of Fe using a ruler. This method has the advantages of easy operation, low cost, easy fabrication, and reduced sample/reagent…
Descriptors: Chemistry, College Science, College Students, Science Experiments
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