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Direct linkDounay, Amy B.; O'Donnell, Martin J.; Samaritoni, J. Geno; Popiolek, Lukasz; Schirch, Douglas; Biernasiuk, Anna; Malm, Anna; Lamb, Isaac W.; Mudrack, Kristen; Rivera, Daniel G.; Ojeda, Gerardo M.; Scott, William L. – Journal of Chemical Education, 2019
An experiment for the synthesis of N-acyl derivatives of natural amino acids has been developed as part of the Distributed Drug Discovery (D3) program. Students use solid-phase synthesis techniques to complete a three-step, combinatorial synthesis of six products, which are analyzed using LC-MS and NMR spectroscopy. This protocol is suitable for…
Descriptors: Organic Chemistry, Laboratory Experiments, Science Experiments, Pharmacology
Yong, Fang; Zhu, Qiuhong; Zhang, Guohao; Tao, Guohong; Qin, Song – Journal of Chemical Education, 2019
The stated purpose of this paper is to provide a simple and quick method to assemble pH electrodes using readily available materials. The present assembled electrodes are comparable with commercial pH electrodes, with accuracy for pH determination in the range 2-12. Furthermore, the constructed simple pH electrodes exhibit a fast and stable…
Descriptors: Science Instruction, Chemistry, Teaching Methods, Science Laboratories
Harrison, Colin D.; Nguyen, Tiffy A.; Seidel, Shannon B.; Escobedo, Alycia M.; Hartman, Courtney; Lam, Katie; Liang, Kristen S.; Martens, Miranda; Acker, Gigi N.; Akana, Susan F.; Balukjian, Brad; Benton, Hilary P.; Blair, J. R.; Boaz, Segal M.; Boyer, Katharyn E.; Bram, Jason B.; Burrus, Laura W.; Byrd, Dana T.; Caporale, Natalia; Carpenter, Edward J.; Chan, Yee-Hung M.; Chen, Lily; Chovnick, Amy; Chu, Diana S.; Clarkson, Bryan K.; Cooper, Sara E.; Creech, Catherine J.; de la Torre, José R.; Denetclaw, Wilfred F.; Duncan, Kathleen; Edwards, Amelia S.; Erickson, Karen; Fuse, Megumi; Gorga, Joseph J.; Govindan, Brinda; Green, L. Jeanette; Hankamp, Paul Z.; Harris, Holly E.; He, Zheng-Hui; Ingalls, Stephen B.; Ingmire, Peter D.; Jacobs, J. Rebecca; Kamakea, Mark; Kimpo, Rhea R.; Knight, Jonathan D.; Krause, Sara K.; Krueger, Lori E.; Light, Terrye L.; Lund, Lance; Márquez-Magaña, Leticia M.; McCarthy, Briana K.; McPheron, Linda; Miller-Sims, Vanessa C.; Moffatt, Cristopher A.; Muick, Pamela C.; Nagami, Paul H.; Nusse, Gloria; Okimura, K. M.; Pasion, Sally G.; Patterson, Robert; Pennings, Pleuni S.; Riggs, Blake; Romeo, Joseph M.; Roy, Scott W.; Russo-Tait, Tatiane; Schultheis, Lisa M.; Sengupta, Lakshmikanta; Spicer, Greg S.; Swei, Andrea; Wade, Jennifer M.; Willsie, Julia K.; Kelley, Loretta A.; Owens, Melinda T.; Trujillo, Gloriana; Domingo, Carmen; Schinske, Jeffrey N.; Tanner, Kimberly D. – CBE - Life Sciences Education, 2019
Instructor Talk--noncontent language used by instructors in classrooms--is a recently defined and promising variable for better understanding classroom dynamics. Having previously characterized the Instructor Talk framework within the context of a single course, we present here our results surrounding the applicability of the Instructor Talk…
Descriptors: Classroom Communication, Language Usage, Novelty (Stimulus Dimension), Models
Waal, Eric; Tran, Thomas; Abbondanza, Domenic; Dey, Arup; Peterson, Celeste – Biochemistry and Molecular Biology Education, 2019
The CRISPR/Cas9 system is a powerful tool for gene editing and it has become increasingly important for biology students to understand this emerging technique. Most CRISPR laboratory teaching modules use complex metazoan systems or mammalian cell culture which can be expensive. Here, we present a lab module that engages students in learning the…
Descriptors: Science Instruction, Biology, Science Laboratories, Teaching Methods
Davies, Kevin W. – Journal of College Science Teaching, 2019
In recent years, video-based lectures have been increasingly used in education as part of flipped classroom approaches, adult education, distance learning, and other applications. Though approaches in video-based lectures have been widely studied, less has been reported in the development of approaches to teach relevant technical skills, such as…
Descriptors: Skill Development, Instructional Effectiveness, Video Technology, Lecture Method
Dai, Jie; Lu, Dadong; Ye, Tao; Yu, Shouyun; Cheng, Xu – Journal of Chemical Education, 2019
The Suzuki-Miyaura cross-coupling reaction, which is one of the most important methods for C-C bond formation in modern organic synthesis, exhibits broad functional group compatibility. A Suzuki-Miyaura cross-coupling protocol is reported that is suitable for demonstrating this compatibility in undergraduate laboratories. In this reaction, two…
Descriptors: Science Instruction, Organic Chemistry, College Science, Hands on Science
Peng, Hao-Che; Bryan, Jessica; Henson, William; Zhdankin, Viktor V.; Gandhi, Kushal; David, Samuel – Journal of Chemical Education, 2019
The synthesis of substituted 1,4-benzoquinones, a biologically important class of compounds, was developed using [mu]-oxodi(phenyliodanyl) diacetate, a (diacetoxyiodo)benzene-based oxidizing reagent, in order to introduce second-year undergraduate organic laboratory students in their second semester or advanced organic students to increasingly…
Descriptors: Organic Chemistry, College Science, Undergraduate Students, Science Experiments
Download full textMiller, Scott T.; James, C. Renée – Journal of Astronomy & Earth Sciences Education, 2019
We present results of a two-semester study to gauge the impact of collaborative two-stage exams on student learning and attitudes in university-level introductory astronomy classes for non-science majors. In the collaborative two-stage exam setting, students first completed an exam individually, and then they reconsidered a subset of exam…
Descriptors: Instructional Effectiveness, Group Testing, Introductory Courses, Astronomy
Yang, Hanjun; Fan, Winnie; Hills-Kimball, Katie; Chen, Ou; Want, Li-Qiong – Journal of Chemical Education, 2019
Quantum dots (QDs) are considered useful for demonstrating quantum phenomena in undergraduate laboratories due to their monodisperse size and excellent optical properties. Although doping has an increasingly important role in QD fabrication in the semiconductor field, it has rarely been discussed in the context of the undergraduate laboratory. In…
Descriptors: Science Instruction, College Science, Undergraduate Study, Science Laboratories
Wilcox, Bethany R.; Corsiglia, Giaco – Physical Review Physics Education Research, 2019
We investigate upper-division student difficulties with direct integration in multiple contexts involving the calculation of a potential from a continuous distribution (e.g., mass, charge, or current). Integration is a tool that has been historically studied at several different points in the curriculum including introductory and upper-division…
Descriptors: Physics, Science Instruction, Mathematics, Computation
Wegner, Claas; Bruneman, Rachel LeeAnn; Steffen, Antonia – Science Education International, 2019
Although fundamental chemistry acts as a prerequisite for fully comprehending imperative aspects of biology, Bielefeld University is one of three universities in North Rhine-Westphalia, Germany that does not require majors or minors in biology education to complete classes in general chemistry, before fulfilling graduation requirements. A study…
Descriptors: Biology, Chemistry, College Science, Science Process Skills
Odden, Tor Ole B.; Lockwood, Elise; Caballero, Marcos D. – Physical Review Physics Education Research, 2019
Computation is becoming an increasingly important part of physics education. However, there are currently few theories of learning that can be used to help explain and predict the unique challenges and affordances associated with computation in physics. In this study, we adapt the existing theory of computational literacy, which posits that…
Descriptors: Physics, Learning Theories, College Science, Undergraduate Students
Mora, Germán – Journal of Geoscience Education, 2019
Inquiry-based instruction facilitates students' acquisition of scientific abilities, but little is known about how rapidly college students master these skills, particularly when this form of instruction includes scaffolding and especially when those scaffolds are removed. To address this gap, this study aimed to evaluate the effect that removing…
Descriptors: Teaching Methods, Inquiry, Science Laboratories, Environmental Education
Walker, Joi Phelps; Van Duzor, Andrea Gay; Lower, Meghan A. – Journal of Chemical Education, 2019
Scientific argumentation is a key means by which students make sense of content and processes in inquiry-based instruction. In scientific argumentation students make a "claim" that they support with "evidence" and provide "reasoning" as to how the evidence supports the claim. Integrating the different aspects of…
Descriptors: Science Instruction, Chemistry, Science Laboratories, Persuasive Discourse
Divya, Damodaran; Raj, Kovummal Govind – Journal of Chemical Education, 2019
A practical approach for synthesizing functional material from waste material is described. The work was carried out by chemistry undergraduate students as a group project. The concepts used mainly in inorganic quantitative approaches were applied to transform an iron-containing material to magnetic iron oxide nanoparticles. The magnetic…
Descriptors: Chemistry, College Science, Wastes, Undergraduate Students
