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Showing 1 to 15 of 20 results Save | Export
Maria Cerrato-Alvarez; Samuel Frutos-Puerto; Eduardo Pinilla-Gil – Journal of Chemical Education, 2024
Calculating analytical uncertainties as a part of method validation is a relevant aspect of field and laboratory practices in instrumental analytical chemistry subjects, which usually require complex algorithms. This work describes the development and didactic use of an automatic and straightforward informatics tool, implemented in an Excel macro,…
Descriptors: Computation, Computer Software, Teaching Methods, Knowledge Level
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Balabanoff, Morgan; Harrold, Archer; Moon, Alena – Electronic Journal for Research in Science & Mathematics Education, 2023
Previous work has highlighted the difficulties students have when explaining wave behavior. We present an investigation of chemistry students' understanding of the double-slit experiment, where students were asked to explain a series of PhET simulations illustrating a single continuous light source, single-slit diffraction, and double-slit…
Descriptors: Chemistry, Thinking Skills, Science Experiments, Light
Önen Öztürk, Fatma; Aglarci Özdemir, Oya – Online Submission, 2022
Chemistry includes observable phenomena and materials related to daily life, but learners sometimes have difficulties understanding the theoretical and abstract nature of chemistry as well as its applications and relating it to everyday experiences. In this manner, the aim of the study is to determine and assess whether pre-service science and…
Descriptors: College Freshmen, Preservice Teachers, Science Instruction, Chemistry
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Keen, Clarissa; Couture, Steven; El Meseh, Nayer Abd; Sevian, Hannah – Journal of Chemical Education, 2020
Electrochemistry is omnipresent in our lives, but students often do not recognize that the electrochemistry they learn in general chemistry happens in the batteries on which we depend. Students also may not recognize that they have the power to make greener choices about batteries using their knowledge of chemistry. This 4 h general chemistry…
Descriptors: Chemistry, Equipment, Knowledge Level, Science Experiments
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M. del Mar de la Fuente Garci´a-Soto; Joaqui´n Marti´nez-Urreaga; Adolfo Narros Sierra – Journal of Chemical Education, 2022
This paper presents an insight on the pedagogy and strategic design of the organization of the four experimental subjects of the Chemical Engineering Degree Curricula at the Universidad Politécnica de Madrid (GIQ-ETSII-UPM). Outcome-based learning is applied, focused on the student's work, centering explicitly in Experimental Design outcomes.…
Descriptors: Chemistry, Science Education, Engineering Education, Technical Education
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Yuqing Fang; Peng Hou; Cuiyun Zeng; Changfeng Wan; Shuiliang Chen – Journal of Chemical Education, 2023
Integrating new synthetic methods and experimental techniques from the latest research reports into undergraduate laboratory experiments is of great significance, as it enables students to learn the cutting-edge technology of organic chemistry and cultivates their experimental skills and innovative thinking. In this study, an experiment on their…
Descriptors: Science Experiments, Science Laboratories, Undergraduate Study, Science Instruction
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Güven, Nalan Akkuzu; Uyulgan, Melis Arzu – Journal of Pedagogical Research, 2021
The present investigation aims to analyze the knowledge levels and chemical representation levels of pre-service primary school teachers (PPSTs) on the experiment of distillation. For this purpose, the cross-sectional survey technique, one of the quantitative research designs was employed. The study was carried out at a Faculty of Education in the…
Descriptors: Knowledge Level, Chemistry, Preservice Teachers, Elementary School Teachers
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Szalay, L.; Toth, Z.; Kiss, E. – Chemistry Education Research and Practice, 2020
The results of an earlier empirical research study on modifying 'step-by-step' instructions to practical activities requiring one or more steps of the experiments to be designed by students initiated a longitudinal study to investigate the effectiveness of the approach for younger students and over a period of time. The longitudinal study that…
Descriptors: Research Design, Scientific Research, Science Experiments, Foreign Countries
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Mistry, Nimesh; Gorman, Stephen G. – Chemistry Education Research and Practice, 2020
To be able to design a laboratory course it is important to know what laboratory skills students possess before the course starts. This way the course can focus on developing skills in areas that are lacking. Despite the extensive literature on laboratory education, there are few studies on what laboratory skills students have at this stage of…
Descriptors: Science Instruction, Science Laboratories, Skill Development, Knowledge Level
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Vinko, Luka; Delaney, Seamus; Devetak, Iztok – Center for Educational Policy Studies Journal, 2020
Chemistry is an experimental discipline that uses experimentation as one of its most important research methods. Laboratory work and other practical work are therefore also essential in chemistry lessons. Chemistry demonstrations are used by teachers as an educational approach that can increase students' interest in chemistry and motivate them to…
Descriptors: Teacher Attitudes, Instructional Effectiveness, Chemistry, Science Instruction
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Baldwin, Nicole; Orgill, MaryKay – Chemistry Education Research and Practice, 2019
Practicing chemists use models, diagrams, symbols, and figures to represent phenomena which cannot be detected by the human senses. Although research suggests that these external representations (ERs) can also be used to address the challenges that students have in learning chemistry, it is not clear how instructors' use of ERs aligns with their…
Descriptors: Teaching Assistants, College Science, Chemistry, Science Laboratories
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Schneider, Elia M.; Bärtsch, Amadeus; Stark, Wendelin J.; Grass, Robert N. – Journal of Chemical Education, 2019
A simple synthesis of fluorescent carbon quantum dots from lemon juice is described to introduce advanced high-school students and undergraduate college students to nanoparticle synthesis and quantum dots. The synthesis is based on the carbonization of lemon juice using only a hot plate stirrer. Column chromatography is used to separate different…
Descriptors: Science Instruction, Teaching Methods, High School Students, Foreign Countries
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Bain, Kinsey; Towns, Marcy H. – Journal of Chemical Education, 2018
The concept of energy is of central significance, as it is a core disciplinary idea in chemistry and a cross-cutting concept in the sciences. This study sought to investigate student understanding of energetics and associated thermodynamic functions in chemical reactions and processes across a sample of introductory-level undergraduate chemistry…
Descriptors: College Students, Chemistry, Knowledge Level, Thermodynamics
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Chen, Huai-Yi; Nieh, Hwa-Ming; Yang, Ming-Feng; Chou, Yu-Kung; Chung, Jui-Hsu; Liou, Je-Wen – IEEE Transactions on Education, 2016
This study proposes a home-assembled, low-cost blue light-emitting diode (LED) photometer that uses simple and low-cost hardware and software, costing about US $150. This 425-nm wavelength photometer is controlled by an 89C51 microcontroller chip. Glucose concentration detection experiments involving enzyme coupling reactions were carried out to…
Descriptors: Measurement Equipment, Electronics, Biotechnology, Energy
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Alagumalai, Sivakumar – Teaching Science, 2015
Thinking scientifically consists of systematic observation, experiment, measurement, and the testing and modification of research questions. In effect, science is about measurement and the understanding of causation. Measurement is an integral part of science and engineering, and has pertinent implications for the human sciences. No measurement is…
Descriptors: Science Education, Error of Measurement, Observation, Scientific Concepts
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