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Peer reviewed
Direct linkRoman, Claudia; Lazar, Liliana; García-Morales, Moisés – Journal of Chemical Education, 2020
Mass transfer separations are of extreme importance to professionals working in the chemical industry. For this reason, chemical engineering and industrial chemistry students are both taught these unit operations at the final years of their study programs. The traditional way of carrying out their design is based on the use of deterministic…
Descriptors: Chemistry, Monte Carlo Methods, Science Instruction, Chemical Engineering
Celestino, Teresa; Marchetti, Fabio – Journal of Chemical Education, 2020
This paper focuses on system concept use in teaching either chemical core concepts or interdisciplinary chemistry-related topics. The system concept is important in order to develop global competences, and chemistry teaching plays a key role in this context. A questionnaire has been administered to two different samples, Italian teachers and…
Descriptors: Chemistry, Interdisciplinary Approach, Systems Approach, Advanced Placement Programs
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
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
Pirbhai, M. – Physics Education, 2020
Measuring the "e/m" ratio is a classic experiment in the physics curriculum. We show that smartphones can reliably measure the magnetic field strengths involved. Moreover, phone cameras and the image-processing software Tracker can make determining the charge-to-mass ratio of the electron more accurate.
Descriptors: Science Instruction, Science Experiments, Telecommunications, Handheld Devices
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
Putranta, Himawan; Wiyatmo, Yusman; Supahar, X. X.; Dwandaru, Wipsar Sunu Brams – Physics Education, 2020
Physics learning cannot be separated from the existence of physics measuring instruments, but their existence in schools are very limited. Therefore, creativity and innovation are needed to develop physics measuring instruments that are easily accessible by schools. This research aims to design and construct a liquid density measuring instrument…
Descriptors: Physics, Science Education, Science Instruction, Science Equipment
Wright, Lyniesha Chanell; Oliver-Hoyo, Maria Theresa – Chemistry Education Research and Practice, 2020
The mental models students have after engaging in an activity designed to teach infrared (IR) spectroscopy without reliance on IR absorption tables, were characterized. Qualitative analysis of semi-structured interviews, through open coding, allowed the classification of the mental models as Molecules as Dynamic (MAD), Bonds as Dynamic (BAD),…
Descriptors: Organic Chemistry, Spectroscopy, Schemata (Cognition), Molecular Structure
Kennedy, Jacob S.; Larson, Garrett E.; Blumenfeld, Alex; Waynant, Kristopher V. – Journal of Chemical Education, 2020
Carbohydrates are an essential group of molecules to the organic chemistry classroom providing molecular relevance to a common ingredient in chemical biology. While the meticulous elucidation of the carbohydrate structures by Fischer and others is an engaging topic in the lecture, there are few laboratory experiments that can emulate carbohydrate…
Descriptors: Organic Chemistry, College Science, Laboratory Experiments, Science Experiments
Kondinski, Aleksandar; Moons, Jens; Zhang, Yujie; Bussé, Jakob; De Borggraeve, Wim; Nies, Erik; Parac-Vogt, Tatjana N. – Journal of Chemical Education, 2020
Single-type, 6-fold symmetrically grooved, and commercially accessible interlocking disks (ILDs) have been used for modeling of sp[superscript 2] hybridized carbon-based nanoarchitectures and complex polyhedral and reticular material models. In the case of the carbon-based nanoarchitectures, we showcase that the primary ILDs can be directly used…
Descriptors: Science Instruction, Inorganic Chemistry, Hands on Science, Molecular Structure
Moore, Virginia J.; Prewitt, Elizabeth Mitchell; Carpenter-McCullough, Amber Jean; Whitworth, Brooke A. – Journal of College Science Teaching, 2020
With an overwhelming amount of research and a demand for collaborative learning in the classroom, teachers are tackling challenges at all educational levels that often accompany the social aspects of group work. Team-Based Learning (TBL) is an instructional sequence that shifts instruction from teacher lecture to small-group learning. Through the…
Descriptors: Cooperative Learning, Science Instruction, Student Attitudes, Undergraduate Students
Ashby, Patrick; Mensah, Felicia Moore – Research in Science Education, 2020
This critical ethnography documents how a group of 25 students and their teacher/researcher in a suburban, private school setting, the vast majority from the dominant cultural background, engaged with and enacted a critical chemistry education together. Critical chemistry education contextualizes chemistry in socially relevant issues and…
Descriptors: Chemistry, Science Instruction, Social Bias, Private Schools
Pölloth, Benjamin; Teikmane, Ieva; Schwarzer, Stefan; Zipse, Hendrik – Journal of Chemical Education, 2020
A modular and target-group oriented online video library with 48 videos was developed and produced in order to reduce the complexity of an introductory organic chemistry laboratory class. The library comprises three different types of videos: "Tutorials" explaining fundamental laboratory techniques, "Do nots" pointing students…
Descriptors: Video Technology, Electronic Libraries, Introductory Courses, Organic Chemistry
