Huddle, Penelope Ann, White, Margaret Dawn, and Rogers, Fiona
Journal of Chemical Education, v77 n1 p104-10 Jan 2000.
Chemistry, Demonstrations (Science), Electric Circuits, Electricity, Electrochemistry, High Schools, Higher Education, Instructional Materials, Misconceptions, Science Activities, Science Education, Science Equipment, Scientific Concepts, and Teaching Methods
Describes a concrete teaching model designed to eliminate students' misconceptions about current flow in electrochemistry. The model uses a semi-permeable membrane rather than a salt bridge to complete the circuit and demonstrate the maintenance of cell neutrality. Concludes that use of the model led to improvement in students' understanding at the high school and university levels. (Contains 27 references.) (WRM)
Chemistry, Concept Formation, Constructivism (Learning), Electricity, High Schools, Learning Processes, Metals, Science Education, and Scientific Concepts
Explores common schemes used by Spanish 10-12th grade students in concrete and abstract contextual situations to explain the internal structure of metals, the causes of electric conduction of metals, and the nature of this current. Concludes that students' conceptions change progressively as they are exposed to additional relevant information in higher grades. (Contains 66 references.) (Author/YDS)
Journal of Chemical Education, v61 n4 p381-82 Apr 1984.
Chemistry, Electricity, High Schools, Science Education, Science Instruction, Secondary School Science, Teaching Methods, and Textbook Content
Presents a problem on nonstandard concentrations at nonstandard temperature modeled after an example problem on the Nernst equation found in a high school chemistry textbook. Discusses why the problem is incorrect, offering a second problem which is correctly solved. Implications for teaching the Nernst equation are considered. (JN)
Chemistry, College Science, Electricity, Exhibits, High Schools, Higher Education, Science Education, Science Equipment, Science Experiments, Science History, Science Instruction, and Secondary School Science
Suggests preparing displays which include both dynamic and static items to attract observers' attention and hold their interest. Includes instructions for making exhibits related to phenomena associated with Joseph Priestley and Michael Faraday. (DH)
Chemistry, Demonstrations (Educational), Electricity, Energy, Heat, High Schools, Laboratory Procedures, Light, Science Activities, Science Education, Science Instruction, Secondary School Science, and Teaching Methods
Recommends using dramatic demonstrations on the energy in chemical systems as an audiovisual adjunct to lectures and laboratory sessions. Lists materials needed and provides procedures including safety tips for various experiments to produce chemical light, heat, and electricity; and concludes with hints for preparation/rehearsal. (JM)
Chemical Reactions, Chemistry, Electricity, High Schools, Laboratory Procedures, Metals, Science Education, Science Equipment, Science Experiments, and Secondary School Science
Electrography is a technique in which unknown metals are identified by the precipitates they form with known electrolytes. The technique illustrates both electrochemistry and precipitation reactions. Describes the technique, suggesting its use in science and forensic science classes. (JN)