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Peer reviewed
Direct linkValente Nabais, J. M.; Costa, Sara D. – Journal of Chemical Education, 2017
This paper reports an experimental activity where students have to carefully analyze the evidence collected at the crime scene, namely fibers and lipstick traces. The fibers are analyzed by infrared spectroscopy, solubility tests, and optical microscopy, while in turn the lipstick traces are investigated by thin layer chromatography. Students also…
Descriptors: Science Instruction, Crime, College Science, Undergraduate Study
Fernández-Calviño, David; Pérez-Rodríguez, Paula; Nóvoa-Muñoz, Juan Carlos; Estévez, Manuel Arias – Journal of Chemical Education, 2017
National legislation concerning soil pollution by heavy metals in different countries is mostly based on the total heavy metal concentration levels allowed in different soils. As soil pollution is an issue of worldwide concern, here we develop a laboratory exercise for students in which they must check the suitability of a total metal…
Descriptors: Chemistry, Science Instruction, Science Laboratories, Metallurgy
Almeida, Maria Strecht; Quintanilha, Alexandre – Biochemistry and Molecular Biology Education, 2017
We explore the integration of societal issues in undergraduate training within the life sciences. Skills in thinking about science, scientific knowledge production and the place of science in society are crucial in the context of the idea of responsible research and innovation. This idea became institutionalized and it is currently well-present in…
Descriptors: Science and Society, Biological Sciences, Science Instruction, Undergraduate Study
Hensiek, Sarah; DeKorver, Brittland K.; Harwood, Cynthia J.; Fish, Jason; O'Shea, Kevin; Towns, Marcy – Journal of College Science Teaching, 2017
Digital badging is an innovative method of valid, evidence-based assessment that may be used to assess hands-on skills in undergraduate science laboratories, in research laboratories, and in fieldwork. A digital badge contains information about who was awarded the badge, the criteria used, the evidence submitted, the issuer, the date issued, and…
Descriptors: Recognition (Achievement), Evaluation Methods, Academic Achievement, Evidence Based Practice
Zare, Richard N.; Cox, Charles T., Jr.; Murphy, Katherine; Bayas, Camille – Journal of College Science Teaching, 2017
In large, introductory courses, instructors and teaching assistants often struggle to provide detailed feedback on student homework in a timely manner. Here we describe a peer-reviewed homework system that provides quick turnaround while offering flexibility in the construction of homework problems. Homework is administered through a cycle, which…
Descriptors: Homework, Peer Evaluation, Introductory Courses, Problem Solving
Sokolowski, Andrzej – Physics Education, 2017
Graphs in physics are central to the analysis of phenomena and to learning about a system's behavior. The ways students handle graphs are frequently researched. Students' misconceptions are highlighted, and methods of improvement suggested. While kinematics graphs are to represent a real motion, they are also algebraic entities that must satisfy…
Descriptors: Graphs, Physics, Science Instruction, Misconceptions
Troy, Tia; Reiner, Megan; Haugen, Andrew J.; Moore, Nathan T. – Physics Education, 2017
The work describes an analogy-based small oscillations analysis of a standard static equilibrium lab problem. In addition to force analysis, a potential energy function for the system is developed, and by drawing out mathematical similarities to the simple harmonic oscillator, we are able to describe (and experimentally verify) the period of small…
Descriptors: Conservation (Concept), Energy, Motion, Physics
Stephens, Jessica D.; Battle, David C.; Gormally, Cara L.; Brickman, Peggy – Journal of College Science Teaching, 2017
Early training opportunities for future faculty, namely graduate students and postdoctoral researchers, can better prepare them to use active learning approaches. We know that instructional feedback supports sustained change and motivates instructors to improve teaching practices. Here, we incorporate feedback as a key component of a pedagogical…
Descriptors: College Faculty, Teaching Assistants, Feedback (Response), Active Learning
Fonseca, Custódia S. C. – Journal of Chemical Education, 2017
Sigmatropic rearrangement is one of the main classes of pericyclic reactions, which does not necessarily mean that these rearrangements have a pericyclic mechanism. The allylic saccharin derivative O-cinnamylsaccharin can isomerize into N-cinnamylsaccharin in the polar solvent system toluene/triethylamine in a reaction time of 2 h at 110°C. The…
Descriptors: Synthesis, Chemistry, Organic Chemistry, Laboratory Experiments
Richard, Melissa; Coley, John D.; Tanner, Kimberly D. – CBE - Life Sciences Education, 2017
Natural selection is a central concept throughout biology; however, it is a process frequently misunderstood. Bacterial resistance to antibiotic medications provides a contextual example of the relevance of evolutionary theory and is also commonly misunderstood. While research has shed light on student misconceptions of natural selection, minimal…
Descriptors: Undergraduate Students, College Science, Evolution, Logical Thinking
McCullagh, James V.; Hirakis, Sophia P. – Journal of Chemical Education, 2017
This synthesis of ethyl 6-acetoxyhexanoate (Berryflor) is designed as an experiment for use in a second-year organic chemistry course focusing on the synthesis and reaction of esters. The compound is described as having a raspberry-like odor with jasmine and anise aspects. A two-step procedure for its synthesis beginning with inexpensive…
Descriptors: College Science, Undergraduate Study, Organic Chemistry, Science Experiments
Modir, Bahar; Thompson, John D.; Sayre, Eleanor C. – Physical Review Physics Education Research, 2017
Students' difficulties in quantum mechanics may be the result of unproductive framing and not a fundamental inability to solve the problems or misconceptions about physics content. We observed groups of students solving quantum mechanics problems in an upper-division physics course. Using the lens of epistemological framing, we investigated four…
Descriptors: Epistemology, Problem Solving, Quantum Mechanics, Physics
Zhang, Lili; Zhang, Wei; Wu, Chong; Liu, Zhongming; Cai, Yunfei; Cao, Xingguo; He, Yushan; Liu, Guoxiang; Miao, Hongming – Biochemistry and Molecular Biology Education, 2017
The effect of scientific training on course learning in undergraduates is still controversial. In this study, we investigated the academic performance of undergraduate students with and without scientific training. The results show that scientific training improves students' test scores in general medical courses, such as biochemistry and…
Descriptors: Undergraduate Students, Scores, Science Tests, Biochemistry
Download full textCruells Cadevall, Montserrat; Roca Vallmajor, Antoni; Escaja Sánchez, Núria; Fernández González, Javier; Garrido Ponce, José Antonio; Giménez Farreras, Jaume; Llauradó Tarragó, Montserrat; Rodriguez Raurell, Laura; Marcos, Josep Oriol Bernad; Arias, Carla Escobar; Vinent, Nuria López; Gratovil, Ma Lluisa Sagristà; Aragay, Carme Navarro – Journal of Technology and Science Education, 2017
In scientific and technical degrees, the opinion of the final employers on the given subjects is really important. For this reason, the Quality Committee (CQ) of the Faculty of Chemistry of the University of Barcelona prepared a survey for chemical, engineering and pharmaceutical companies asking about the academic training required by the…
Descriptors: Foreign Countries, Surveys, Competence, Comparative Analysis
French, Debbie A.; Burrows, Andrea C. – Journal of College Science Teaching, 2017
Increases in student-centered pedagogy have been more prevalent in K-12 education than in collegiate undergraduate science education. The purpose of this study was to determine the effects of using student-centered pedagogy advocated in K-12 education on introductory astronomy students' content knowledge, interest, and recall of content taught in…
Descriptors: Astronomy, College Science, Science Instruction, Student Centered Learning
