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Download full textAhmed, Mohamed Elsayed; Hasegawa, Shinobu – Education Sciences, 2021
The increasing use of online virtual laboratories (OVLs) in educational institutions as a recent educational technology application necessitates developing a new educational platform for assisting instructors in using such technology in the teaching process without web programming obstacles. The OVLs are online environments that provide students…
Descriptors: Science Laboratories, Computer Simulation, Laboratory Experiments, Educational Technology
Yamashita, Shuichi; Kashiwaguma, Yasuyuki; Hayashi, Hideko; Pietzner, Verena – Science Education International, 2017
In science classes, students usually learn about the law of definite proportions by the oxidation of copper. However, common procedures usually do not lead to proper results. This leads to confusion among the students because their experimental results do not fit to the theoretical values. Therefore, we invented a new procedure for this experiment…
Descriptors: Science Instruction, Science Experiments, Scientific Concepts, Concept Formation
Direct linkYoshikawa, Masahiro; Koga, Nobuyoshi – Journal of Chemical Education, 2016
This study focuses on students' understandings of a liquid-gas system with liquid-vapor equilibrium in a closed system using a pressure-temperature ("P-T") diagram. By administrating three assessment questions concerning the "P-T" diagrams of liquid-gas systems to students at the beginning of undergraduate general chemistry…
Descriptors: Science Instruction, Scientific Concepts, Concept Formation, College Science
Ohashi, Atsushi – Journal of Chemical Education, 2015
A high-school third-year or undergraduate first-semester general chemistry laboratory experiment introducing simple-cubic, face-centered cubic, body-centered cubic, and hexagonal closest packing unit cells is presented. Latex balls and acrylic resin plates are employed to make each atomic arrangement. The volume of the vacant space in each cell is…
Descriptors: Secondary School Science, High Schools, College Science, Undergraduate Study
Set, Seng; Ford, David; Kita, Masakazu – Journal of Chemical Education, 2015
This research revealed that metal ions with different charges could significantly affect the viscosity of aqueous sodium carboxylmethylcellulose (CMC) solution. On the basis of an Ostwald viscometer, an improvised apparatus using a dropping ball for examining the viscosity of liquids/solutions has been developed. The results indicate that the…
Descriptors: Science Instruction, Molecular Structure, Metallurgy, Chemistry
Kamata, Masahiro; Takeuchi, Noriko; Akahane, Hisao; Shoji, Ryuichi – Physics Education, 2002
Although ammeters are very important tools for science classes in elementary and junior high schools, many ordinary ones are not easy to handle nor sufficiently educational. From this viewpoint, the authors have investigated the possibility of using clamp-on ammeters, which are very common among professional electricians, for educational purposes.…
Descriptors: Junior High School Students, Secondary School Science, Laboratory Equipment, Science Laboratories
