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Showing 1 to 15 of 262 results Save | Export
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Qi Zheng – Journal of Microbiology & Biology Education, 2024
The importance of teaching the Luria-Delbrück experiment to biology students is increasingly recognized by educators, and improved pedagogical methods for teaching the classic experiment have been proposed and tested in the classroom. However, there are still obstacles that impede the proper teaching of the classic experiment. This note proposes…
Descriptors: Science Instruction, Biology, Science Experiments, Educational Improvement
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Antonio García-Carmona – Science & Education, 2025
For many years, hegemonic approaches to teaching the nature of science (NOS) have focused mainly on understanding some epistemic (i.e., rational, or cognitive) aspects involved in the construction of science. So, aspects of a non-epistemic (i.e., non-rational, contextual, or extra-scientific) nature have been practically neglected in these…
Descriptors: Science Instruction, Teaching Methods, Scientific Principles, Holistic Approach
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Tiantian Cheng; Lingzhen Cao; Meng Zou – American Biology Teacher, 2024
The central dogma of molecular biology describes the transfer of genetic information from nucleic acids to proteins and stipulates that the system cannot work in the reverse direction. As a fundamental principle in biology, the dogma is as influential as it is controversial. Some commentators have debated the central dogma's empirical accuracy…
Descriptors: Biology, Genetics, Science Instruction, Physiology
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Richard Brock; Wonyong Park – Science & Education, 2024
Whilst teaching about the nature of science (NOS) is a significant goal of science education, there remains debate about specifying the NOS and appropriate pedagogies and approaches to researching the NOS. A neglected, but conceptually and practically significant, problem is the proliferation of NOS-related learning goals such as NOS beliefs,…
Descriptors: Scientific Attitudes, Beliefs, Scientific Literacy, Knowledge Level
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Qiang Fu; Shiyuan Fu; Hui Yang; Jing Yu; Li Liu – Journal of Chemical Education, 2024
The double-indicator method is often used in the analysis of Na[subscript 2]CO[subscript 3], NaHCO[subscript 3], and NaOH mixtures (carbonate mixtures). In this method, the determination of the volumes at the first and second equivalence points plays a crucial role in analyzing the composition and content of the carbonate mixtures. Here, LabVIEW…
Descriptors: Science Instruction, Chemistry, Computer Simulation, Measurement
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Bo Chen; Shaoli Chen; Huinan Liu; Xianhua Meng – Science & Education, 2024
This paper aimed to examine the changes in the representations of nature of science (NOS) in Chinese senior high school chemistry textbooks under the influence of the new curriculum ideas. The study was conducted based on an analytical framework in which the aspects of NOS, the approaches to address NOS, and the content relation of NOS aspects…
Descriptors: High School Seniors, Chemistry, Science Instruction, Textbooks
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Singh, Anoushka; Miller, Ryan C.; Archuleta, Stephen R.; Kugel, Jennifer F. – Biochemistry and Molecular Biology Education, 2023
Transcription is the critical first step in expressing a gene, during which an RNA polymerase (RNAP) synthesizes an RNA copy of one strand of the DNA that encodes a gene. Here we describe a laboratory experiment that uses a single assay to probe two important steps in transcription: (1) RNAP binding to DNA, and (2) the transcriptional activity of…
Descriptors: Molecular Biology, Science Instruction, Genetics, Teaching Methods
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Adúriz-Bravo, Agustín; Sans Pinillos, Alger – Science & Education, 2023
The central argument of this article is that abduction as a "mode of inference" is a key element in the nature of scientists' science and should consequently be introduced in school science. Abduction generally understood as generation and selection of hypotheses permits to articulate the classical scientific contexts of discovery and…
Descriptors: Logical Thinking, Science Instruction, Scientific Principles, Philosophy
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González de Arrieta, I. – Physics Teacher, 2021
The conventional approach to teaching blackbody radiation in introductory modern physics courses relies on an oversimplified explanation of Wien's displacement law, which does not uphold students' conceptual understanding of Planck's law and can lead to well-known misconceptions. Thus, there is a need to clarify the pedagogical role of this…
Descriptors: Radiation, Science Instruction, Physics, Introductory Courses
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Leff, Harvey S.; Kaufman, Richard – Physics Teacher, 2020
What if energy flowed from cold to hot regions? How would thermodynamics be different? We examine such an imagined cold-to-hot world, abbreviated here as a C2H world, and show that the unfamiliar direction of energy flow implies that two thermally interacting objects at different temperatures will not equilibrate. We find that there is no…
Descriptors: Science Instruction, Energy, Thermodynamics, Scientific Principles
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Cross, Rod – Physics Education, 2020
If a ball rolls at constant speed on a horizontal surface about a horizontal axis then the angular velocity is easily measured. If the ball is projected with additional spin about the vertical axis, then the rotation axis is tilted and it is more difficult to measure the rotation speed. A few examples are presented to show how the separate topspin…
Descriptors: Motion, Physics, Scientific Principles, Science Instruction
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Ivanov, Dragia; Nikolov, Stefan – Physics Education, 2020
In this paper we consider the well-known experiment with the 'heavy' newspaper that breaks a stick that it is laid on. Using several appropriate control experiments we show that the currently invoked explanation using atmospheric pressure cannot be correct. We perform a theoretical analysis and propose a new explanation based on the rotational…
Descriptors: Science Instruction, Science Experiments, Physics, Motion
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Yousef, Abraham L.; Smith, Alexis G. – Journal of Chemical Education, 2022
A multistep synthesis of a novel arylidene 3­(2"H")-furanone has been designed and optimized for the second-year organic laboratory. The three-step sequence consists of a nucleophilic substitution, intramolecular cyclization, and acid-catalyzed aldol condensation, and can be carried out within two 3 h laboratory periods. The final…
Descriptors: Organic Chemistry, Laboratory Experiments, Science Experiments, Hands on Science
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Haskel-Ittah, Michal – Journal of Research in Science Teaching, 2023
Many studies have characterized students' difficulties in understanding and reasoning about scientific mechanisms. Some of those studies have drawn implications on teaching mechanisms and how to guide students while reasoning mechanistically. In this theoretical article, I claim that one component that has not garnered much attention in the…
Descriptors: Abstract Reasoning, Science Process Skills, Scientific Concepts, Science Instruction
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Park, Wonyong; Brock, Richard – Science & Education, 2023
The notion of family resemblance has recently emerged as a promising and fruitful approach to characterising the nature of science (NOS) in science education research, offering solutions to some perplexing challenges such as capturing both the domain-general and domain-specific features of science with a single framework. At the same time,…
Descriptors: Scientific Principles, Science Instruction, Teaching Methods, Scientific Concepts
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