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Peer reviewed
Direct linkEaton, Philip; Frank, Barrett; Willoughby, Shannon – Physical Review Physics Education Research, 2020
Items that are chained, or blocked, together appear on many of the conceptual assessments utilized for physics education research. However, when items are chained together there is the potential to introduce local dependence between those items, which would violate the assumption of item independence required by classical test theory,…
Descriptors: Science Instruction, Physics, Motion, Scientific Concepts
Haskel-Ittah, Michal; Duncan, Ravit Golan; Yarden, Anat – CBE - Life Sciences Education, 2020
The idea of the interaction between genes and environment in the formation of traits is an important component of genetic literacy, because it explains the plastic nature of phenotypes. However, most studies in genetics education characterize challenges in understanding and reasoning about genetic phenomena that do not involve modulation by the…
Descriptors: Science Instruction, Genetics, College Science, Undergraduate Students
Faletic, Sergej; Planinšic, Gorazd – Physics Education, 2020
In this paper, we present activities that help students deepen their understanding of basic electrostatics using an electroscope in combination with the photoelectric effect. The students investigate the behaviour of an isolated electroscope when the metal housing of the electroscope is charged. The activities follow the framework of the…
Descriptors: Physics, Laboratory Equipment, Science Experiments, Energy
Mirich, Anne; Enmeier, Mackenzie; Cunningham, Katie; Grossman, Kara; Recker, Grace; Jarman, Samantha; Weinmaster, Tazah; Mehaffey, Reba; Huldin, Grayson; Bacchin, Giorgio; Kallepalli, Samaya; Cogua, Laura; Johnson, Lydia; Mattson, Bruce – Journal of Chemical Education, 2020
The catalytic hydrogenation of alkenes and alkynes is an important part of the undergraduate chemistry curriculum and is a fundamental process in chemical industry. Inquiry-based laboratory activities are presented that investigate the hydrogenation of alkynes on a nanoparticle palladium surface to form alkenes, which go on to form alkanes. Alkyne…
Descriptors: Science Instruction, College Science, Undergraduate Study, Inorganic Chemistry
Xie, Aijuan; Tao, Yuwei; Zhang, Wanqi; Duo, Xiaoxiao; Chang, Jianing; Xue, Bing; Luo, Shiping; Zhou, Guoping – Journal of Chemical Education, 2020
This comprehensive experiment is specially designed for the third-year and above students who are majoring in chemistry, applied chemistry, and chemical engineering. Students conduct experiments in groups, which are required to synthesize the CeO[subscript 2]-NiTiO[subscript 3]/attapulgite (ATTP) composite catalyst by the sol-gel method; the…
Descriptors: Science Instruction, College Science, Chemistry, Science Experiments
Jarabak, Charlotte; Mutton, Troy; Ridley, Damon D. – Journal of Chemical Education, 2020
Properties of chemical substances drive a large portion of research in the sciences, but properties are very difficult to search in full text documents, and while searches in chemical information retrieval resources may help, the effective use of such resources may require considerable knowledge of the indexing and excerption policies in the…
Descriptors: Chemistry, Science Instruction, College Science, Graduate Study
Ganesh, Padma – Physics Teacher, 2020
Kinesthetic experiences in the classroom seek to engage students by muscle movement, touch, or some form of physical activity. In this article, I describe an active learning session wherein students develop a qualitative understanding of center of mass and support forces using their sense of touch. The set of activities detailed here is based on a…
Descriptors: Kinesthetic Methods, Science Instruction, Active Learning, Physics
Vasconcelos, Lucas; Kim, ChanMin – Instructional Science: An International Journal of the Learning Sciences, 2020
Scientific modeling and coding are critical skills to be integrated into K-12 instruction. Research has shown that preservice teachers are often ill-prepared for teaching scientific modeling, and lack opportunities to learn coding within teacher education programs. The present study reports the implementation of an instructional module and online…
Descriptors: Preservice Teachers, Preservice Teacher Education, Science Instruction, Models
Howard-Jones, Paul; Jay, Tim; Galeano, Laura – Mind, Brain, and Education, 2020
This pilot study investigated how a brief professional development session on the science of learning impacted teachers' attributions of usefulness to both scientific and performative concepts about teaching. Ratings were collected from teachers attending five events across the United Kingdom (N = 585) before and after receiving a 90-min training…
Descriptors: Professional Development, Learning Processes, Teacher Attitudes, Foreign Countries
Suárez, H. J. Herrera; Machado-Higuera, M.; Muñoz, J. H. – Physics Education, 2020
In this paper, the dynamic case of a system made up of two blocks connected by a string over a smooth pulley is revisited. One mass lies on a horizontal surface without friction, and the other mass has a vertical displacement. The motion equation is obtained and its solution is determined using the "Mathematica" package. Also an…
Descriptors: Science Instruction, Mechanics (Physics), Scientific Concepts, Educational Technology
Potvin, Patrice; Nenciovici, Lucian; Malenfant-Robichaud, Guillaume; Thibault, François; Sy, Ousmane; Mahhou, Mohamed Amine; Bernard, Alex; Allaire-Duquette, Geneviève; Blanchette Sarrasin, Jérémie; Brault Foisy, Lorie-Marlène; Brouillette, Nancy; St-Aubin, Audrey-Anne; Charland, Patrick; Masson, Steve; Riopel, Martin; Tsai, Chin-Chung; Bélanger, Michel; Chastenay, Pierre – Studies in Science Education, 2020
In this article, we propose an analysis of the state of, and trends in, the field of conceptual change research in science education through the lens of its models. Using a quantitative approach, we reviewed all conceptual change articles (n = 245) published in five major journals in the field of science education in search of the support that…
Descriptors: Scientific Concepts, Concept Formation, Science Instruction, Science Education
Equivalence of Entropy Balancing and the Method of Moments for Matching-Adjusted Indirect Comparison
Phillippo, David M.; Dias, Sofia; Ades, A. E.; Welton, Nicky J. – Research Synthesis Methods, 2020
Indirect comparisons are used to obtain estimates of relative effectiveness between two treatments that have not been compared in the same randomized controlled trial, but have instead been compared against a common comparator in separate trials. Standard indirect comparisons use only aggregate data, under the assumption that there are no…
Descriptors: Comparative Analysis, Outcomes of Treatment, Patients, Randomized Controlled Trials
Nuryantini, Ade Yeti; Nuryadin, Bebeh Wahid – Physics Education, 2020
The vector of aircraft motion and analysis using FlightRadar24 and Tracker motion analysis has been investigated and studied. The straight, turning and circular aircraft motion were recorded from www.flightradar24.com using a commercial desktop video recording. Then, the video of the aircraft motion was analyzed using Tracker 5.1.1 to determine…
Descriptors: Motion, Science Instruction, Scientific Concepts, Air Transportation
Tél, T.; Vinze, M.; Jánosi, I. M. – Physics Education, 2020
When injecting dye into a vortex, one finds that the dye remains captured around the vortex core over minutes, despite the fact that the vortex (and the dyed region) is strongly time-dependent. According to a recent theory, three-dimensional time-dependent vortices should be defined as rotating, material-holding regions of the fluid. Vortices…
Descriptors: Science Instruction, Science Experiments, Scientific Concepts, Physics
Heck, André; Uylings, Peter – Physics Education, 2020
The fact that a bungee jumper can reach an acceleration greater than the acceleration of gravity is, also from a physics point of view, intriguing. Taking only gravity into account, it can be explained by applying conservation of energy or by deriving carefully the equation of motion in a Newtonian approach. In this article we show how it can be…
Descriptors: Scientific Concepts, Physics, Motion, Energy
