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Galeriu, Calin – Physics Teacher, 2022
The determination of the speed of sound in air is a classical experiment, usually performed with a resonance tube apparatus. The measured value can be checked against Eq. (1), which describes the temperature dependence of the speed of sound in dry air. A modern implementation of this speed of sound investigation uses an Arduino Uno microcontroller…
Descriptors: Acoustics, Physics, Measurement Equipment, Motion
Mohazzabi, Pirooz – Physics Teacher, 2018
In an article in this journal, it was shown that air resistance could never be a significant source of error in typical free-fall experiments in introductory physics laboratories. Since projectile motion is the two-dimensional version of the free-fall experiment and usually follows the former experiment in such laboratories, it seemed natural to…
Descriptors: Physics, Introductory Courses, Laboratory Experiments, Error Patterns
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
Breno Arsioli Moura – Science & Education, 2024
In 1752, the American polymath Benjamin Franklin supposedly flew a kite near the city of Philadelphia, Pennsylvania, to confirm that lightning had the same properties of common electricity that electrical machines produced and Leyden jars served to store. Illustrations, vignettes and paintings frequently portray the famous experiment, showing…
Descriptors: Science Education, Science Experiments, Illustrations, Content Analysis
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
Baur, Armin – International Journal of Science Education, 2023
Student problems (preconceptions, errors, and learner-specific approaches) that arise when planning and conducting experiments are relevant for lesson planning and the further development of teaching practice overall. student problems are understood as a learning opportunity. So far, little attention has been paid to the relationships between…
Descriptors: Science Education, Science Experiments, Inquiry, Misconceptions
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
Stephens, Jeff; Bostjancic, Melissa; Koskulitz, Tara – Physics Teacher, 2019
The use of video analysis for the study of motion and forces is well established in the worlds of physics and biomechanics. The issue of parallax error, sometimes referred to as perspective error or scaling error, when videotaping a moving object is known, and the experimenter is often counseled to be "far away." However, "far…
Descriptors: Physics, Motion, Scientific Principles, Scientific Concepts
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
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
Eshach, Haim; Kukliansky, Ida – International Journal of Science and Mathematics Education, 2018
The present study uses the intuitive rules theory as a framework to examine whether some of the difficulties in dealing with errors and uncertainties observed among students in the university physics laboratory can stem from their use of intuitive rules. The study also examines the relationship between the use of intuitive rules and laboratory…
Descriptors: Physics, Engineering Education, Error of Measurement, 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
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