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Kopasz, Katalin; Makra, Péter; Gingl, Zoltán – Acta Didactica Napocensia, 2012
The development of demonstration experiments plays a key role in modern and efficient teaching of physics, chemistry, biology and several other disciplines. Today's computers and electronic devices allow the use of simple software-based instrumentation to achieve flexible and surprisingly transparent experimentation, however, the professional…
Descriptors: Science Education, Demonstrations (Educational), Secondary School Science, High School Students
Bruck, Laura B.; Bruck, Aaron D.; Phelps, Amy J. – Journal of Chemical Education, 2010
Solubility is challenging for many general chemistry students, and the interactions of aqueous species are difficult to conceptualize. Derived from the pedagogies of Johnstone, Bloom, and Piaget, our primary research questions probe whether students' conceptual understandings of solubility could be enhanced by participation in a concept-building,…
Descriptors: Chemistry, Scientific Concepts, Hands on Science, Comprehension
Bromfield Lee, Deborah C.; Beggs, Grace A. – Journal of Chemical Education, 2021
The authors describe the construction and use of tactile models for demonstrating intermolecular forces. These models are composed of inexpensive materials and can be used in college chemistry classrooms of varying levels including general and organic chemistry. The models were designed to be paired with an accompanying activity to encourage…
Descriptors: Manipulative Materials, Models, Demonstrations (Educational), Science Instruction
Broyer, Rebecca M.; Miller, Kenny; Ramachandran, Shalini; Fu, Sheree; Howell, Karen; Cutchin, Steven – Journal of Chemical Education, 2021
In recent years, immersive technology tools have burgeoned. After the release of the affordable Oculus Go headset and the Merge Cube, there has been increasing use of virtual, augmented, and extended reality (VR, AR, XR) in classrooms. Of significance to chemistry educators are the virtual lab simulations developed by Labster and HoloLab Champions…
Descriptors: Computer Simulation, Simulated Environment, Demonstrations (Educational), Equipment
Held, Lubomir – Universal Journal of Educational Research, 2017
Avogadro's conception of the structure of gases was not widely accepted by his contemporaries--probably because the hypothesis was not supported by direct evidence. This problem is rarely addressed in schools. This article discusses the difficulties that accompany the acceptance of new ideas. Such difficulties may be associated with the ways in…
Descriptors: Hypothesis Testing, Scientific Methodology, Science History, Scientific Concepts
Adelhelm, Manfred; Aristov, Natasha; Habekost, Achim – Journal of Chemical Education, 2010
The physical properties of oxygen, in particular, the blue color of the liquid phase, the red glow of its chemiluminescence, and its paramagnetism as shown by the entrapment or deflection of liquid oxygen by a magnetic field, can be investigated in a regular school setting with hand-held spectrophotometers and digital cameras. In college-level…
Descriptors: Chemistry, Science Instruction, Instrumentation, Demonstrations (Educational)