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A Study of the Effect of HyperCard and Pen-Paper Performance Assessment Methods on Expert-Novice Chemistry Problem Solving.
Peer reviewed Peer reviewed
Kumar, David D.; And Others – Journal of Science Education and Technology, 1994
Investigates HyperCard as a tool for assessment in science education and determines whether or not a HyperCard assessment instrument could differentiate between expert and novice student performance on balancing stoichiometric equations in science education. (ZWH)
Descriptors: Chemistry, Evaluation, High Schools, Measures (Individuals)
In the Balance.
Peer reviewed Peer reviewed
Lamb, William G. – Science Teacher, 1984
Describes an experiment involving the preparation of copper iodide that gives stoichiometric results. Materials needed and procedures are discussed along with ideas on different ways to analyze the data. Pertinent chemical equations are presented. (BC)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, High Schools
Silver Science.
Peer reviewed Peer reviewed
Sumrall, William J. – Science Teacher, 1991
Presents four stoichiometric problems and their solutions that use spot metal prices quoted from the newspaper to integrate economics and chemistry. (MDH)
Descriptors: Chemical Reactions, Chemistry, Computation, Cooperative Learning
A Simple Quantitative Synthesis: Sodium Chloride from Sodium Carbonate.
Peer reviewed Peer reviewed
Gold, Marvin – Journal of Chemical Education, 1988
Describes a simple laboratory procedure for changing sodium carbonate into sodium chloride by adding concentrated HCl to cause the reaction and then evaporating the water. Claims a good stoichiometric yield can be obtained in one three-hour lab period. Suggests using fume hood for the reaction. (ML)
Descriptors: Chemistry, College Science, High Schools, Higher Education