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Ye, Jianqiang; Lu, Shanshan; Bi, Hualin – Chemistry Education Research and Practice, 2019
This study uses graphs of conductivity measured by a microcomputer-based laboratory (MBL) to promote students' macro, micro, and symbolic representations when learning about net ionic reactions (NIR). A total of 54 students, aged 14-15 years old participated in this research, and were randomly divided into an experimental group (N = 27) and a…
Descriptors: Science Instruction, Science Laboratories, Scientific Concepts, Concept Formation
Poor, S. V.; Herman, B. C.; Janney, B. A. – Clearing House: A Journal of Educational Strategies, Issues and Ideas, 2023
A robust knowledge of physics entails deeply understanding electricity concepts such as conductivity and resistance. Understanding how circuits work is also critical for ensuring the safe use of electrical technology such as car batteries and downed powerlines. Curricular materials covering these content ideas are readily available for teachers.…
Descriptors: Video Technology, Teaching Methods, Scientific Principles, Science Instruction
Shang, Hao – Journal of Chemical Education, 2021
Here, we present an interdisciplinary educational project intended for high school chemistry that is focused on the establishment of a mathematical model to describe the relationship between conductivity and concentration, while linking chemistry to mathematics with the help of computer software. The project was designed to help high school…
Descriptors: Science Instruction, Chemistry, Teaching Methods, Mathematics Instruction
Seng, Set; Shinpei, Tomita; Yoshihiko, Inada; Masakazu, Kita – Journal of Chemical Education, 2014
The precise measurement of conductivity of a semiconductor film such as polypyrrole (Ppy) should be carried out by the four-point probe method; however, this is difficult for classroom application. This article describes the development of a new, convenient, handmade conductivity device from inexpensive materials that can measure the conductivity…
Descriptors: Science Instruction, Laboratory Equipment, Secondary School Science, High School Students
Compton, Owen C.; Egan, Martin; Kanakaraj, Rupa; Higgins, Thomas B.; Nguyen, SonBinh T. – Journal of Chemical Education, 2012
Periodic conductivity trends are placed in the scope of lithium-ion batteries, where increases in the ionic radii of salt components affect the conductivity of a poly(ethyleneoxide)-based polymer electrolyte. Numerous electrolytes containing varying concentrations and types of metal salts are prepared and evaluated in either one or two laboratory…
Descriptors: Chemistry, Plastics, Undergraduate Students, College Science
Gusky, Sharon – American Biology Teacher, 2014
In this activity, freshman college students learn biotechnology techniques while playing the role of a laboratory technician. They perform simulations of three diagnostic tests used to screen newborns for cystic fibrosis. By performing an ELISA, a PCR analysis, and a conductivity test, students learn how biotechnology techniques can be used to…
Descriptors: Screening Tests, Diseases, Neonates, College Freshmen
Kácovský, Petr – Physics Teacher, 2019
Providing instant visual feedback, thermal imaging cameras are becoming more and more popular tools not only in industrial applications, but also in physics education. Continuously decreasing prices, modules compatible with smart portable devices, and intuitive operation make thermal measurements available for schools and attractive for students.…
Descriptors: Electronics, Physics, Science Instruction, Photography