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Sanchez, Juan M. – Journal of Chemical Education, 2021
Systematic errors are unfortunately common in analyses performed by students in teaching laboratories. Quality control (QC) tools are required to detect and solve bias in laboratory analyses. However, although QC has become routine in real-world laboratories, it is still rarely applied in teaching laboratories. For this reason, systematic errors…
Descriptors: Critical Thinking, Science Experiments, Problem Solving, Error Patterns
Oliveira, Vitor – Physics Education, 2022
We discuss the limits of the equation of the period of a simple pendulum, T[subscript s] = 2[pi][square root]l/g, frequently used in high-school and university classrooms to measure the acceleration of gravity. We evaluate the relative error in determining the acceleration of gravity with this simple equation instead of a more realistic one,…
Descriptors: Physics, Teaching Methods, Science Instruction, Accuracy
Schwichow, Martin; Brandenburger, Martina; Wilbers, Jens – International Journal of Science Education, 2022
Designing and interpreting controlled experiments are important inquiry skills addressed in many current science curricula. The relevant skills associated with the design and interpretation of controlled experiments are summarised under the term control-of-variables strategy (CVS). Research on elementary school students' CVS skills shows that they…
Descriptors: Research Design, Inquiry, Elementary School Students, Comparative Analysis
Walkup, John R.; Key, Roger A.; Duncan, Sean Patrick; Sheldon, Avery E.; Walkup, Michael A. – Physics Education, 2020
Error analysis consumes much of the focus in introductory physics labs. Catastrophic cancellation is a spike in error that occurs when subtracting two measurements of roughly equal magnitude. Often termed "loss of significance" or "subtractive cancellation," this effect can easily relegate experimental results to utter…
Descriptors: Physics, Science Instruction, Laboratory Experiments, Teaching Methods
Thy, Savrin; Iwayama, Tsutomu – Physics Education, 2021
This paper presents a thorough method for studying the interference of water waves. The study aimed: (a) to demonstrate the interaction of two coherent waves, which creates interference patterns, and (b) to analyse the interference patterns. Three main tools were employed: a simplified ripple tank to experiment, a smartphone camera to record the…
Descriptors: Science Instruction, Physics, Scientific Concepts, Science Experiments
PaaBen, Benjamin; Bertsch, Andreas; Langer-Fischer, Katharina; Rüdian, Sylvio; Wang, Xia; Sinha, Rupali; Kuzilek, Jakub; Britsch, Stefan; Pinkwart, Niels – International Educational Data Mining Society, 2021
Many modern anatomy curricula teach histology using virtual microscopes, where students inspect tissue slices in a computer program (e.g. a web browser). However, the educational data mining (EDM) potential of these virtual microscopes remains under-utilized. In this paper, we use EDM techniques to investigate three research questions on a virtual…
Descriptors: Anatomy, Science Instruction, Computer Simulation, Computer Software
von Kotzebue, Lena; Müller, Laura; Haslbeck, Heidi; Neuhaus, Birgit J.; Lankes, Eva-Maria – International Journal of Research in Education and Science, 2020
Cognitive activation is one of the central quality characteristics of teaching. Studies which analyzed cognitive activation in science instruction and its influence on the achievement and the interest of students, took most of the times place in higher grades. Since scientific thinking can be taught at a very early stage and, in particular,…
Descriptors: Cognitive Processes, Elementary Schools, Kindergarten, Preschool Teachers
Coleman, Aaron B.; Lam, Diane P.; Soowal, Lara N. – Biochemistry and Molecular Biology Education, 2015
Gaining an understanding of how science works is central to an undergraduate education in biology and biochemistry. The reasoning required to design or interpret experiments that ask specific questions does not come naturally, and is an essential part of the science process skills that must be learned for an understanding of how scientists conduct…
Descriptors: Science Instruction, College Science, Undergraduate Study, Biochemistry
Michelle L. Kovarik; Betty Cristina Galarreta; Peter J. Mahon; Daniel A. McCurry; Aren E. Gerdon; Steven M. Collier; Marjorie E. Squires – Journal of Chemical Education, 2022
This article reports the results of a curriculum survey of 322 analytical chemistry instructors (92% U.S.-based) conducted during Spring 2021. This snapshot of current course formats, topics, and pedagogical methods will be useful to both seasoned and novice teachers of analytical chemistry. The majority of respondents reported that their major…
Descriptors: Chemistry, Science Instruction, Active Learning, Evidence Based Practice
Joseph, Ariana; Budden, Katherine; Cisek, Richard; Tokarz, Danielle – Journal of Chemical Education, 2018
In a university third-year instrumental chemistry laboratory students build a laser based polarimeter for determining light scattering with commercially available optical components used in modern optics research laboratories. During this laboratory experiment, students learn that solutions containing molecules which scatter light also influence…
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Error Patterns
Girault, Isabelle; d'Ham, Cédric – Journal of Science Education and Technology, 2014
When solving a scientific problem through experimentation, students may have the responsibility to design the experiment. When students work in a conventional condition, with paper and pencil, the designed procedures stay at a very general level. There is a need for additional scaffolds to help the students perform this complex task. We propose a…
Descriptors: Science Instruction, Problem Solving, Science Experiments, Scaffolding (Teaching Technique)
McCall, Richard P. – Physics Teacher, 2013
Systematic errors can cause measurements to deviate from the actual value of the quantity being measured. Faulty equipment (such as a meterstick that is not marked correctly), inaccurate calibration of measuring devices (such as a scale to measure mass that has not been properly zeroed), and improper use of equipment by the experimenter (such as…
Descriptors: Physics, Science Instruction, Laboratory Equipment, Science Laboratories
Heinicke, Susanne – Interchange: A Quarterly Review of Education, 2014
Every measurement in science, every experimental decision, result and information drawn from it has to cope with something that has long been named by the term "error". In fact, errors describe our limitations when it comes to experimental science and science looks back on a long tradition to cope with them. The widely known way to cope…
Descriptors: Coping, Teaching Methods, Motivation Techniques, Science Education History
Bonner, David – Science Teacher, 2012
Conducting labs isn't a new way to teach physics, but labs have become increasingly prevalent with the rise of inquiry. Physics students collect mostly quantitative data, often represented by graphs or tables. Interpreting this data can be a challenge for students, especially when it comes to experimental error. To address this issue, this article…
Descriptors: Physics, Science Instruction, Science Laboratories, Inquiry
Hershkovitz, Arnon; Baker, Ryan S. J. d.; Gobert, Janice; Wixon, Michael; Sao Pedro, Michael – Grantee Submission, 2013
In recent years, an increasing number of analyses in Learning Analytics and Educational Data Mining (EDM) have adopted a "Discovery with Models" approach, where an existing model is used as a key component in a new EDM/analytics analysis. This article presents a theoretical discussion on the emergence of discovery with models, its…
Descriptors: Learning Analytics, Models, Learning Processes, Case Studies
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