The authors describe a Modeling Instruction program that places an emphasis on the construction and application of conceptual models of physical phenomena as a central aspect of learning and doing science. (Contains 1 table.)

Suggests that models and theories in physics exist for a particular phenomenon, and that these models could be organized to explain the entire physics domain. Describes the knowledge structures of experts, intermediates, and novices and compares the proportions of theory and model-based categories created by the subjects. Investigates the…

Discusses scattering problems in continuous media, and presents a simple discrete model for scalar wave scattering from inhomogeneities on a lattice. Illustrates the relationships between the amplitude of the scattered wave and the characteristic function of the fluctuating motion of a point reflector in one dimension. (Author/GA)

Describes the advantages of mathematical modeling approach in teaching applied mathematics and gives many suggestions for suitable material which illustrates the links between real problems and mathematics. (GA)

Presents a model describing the vibrations of a mass connected to fixed supports by "ideal" Hooke's law springs which may serve as a starting point in the study of the properties of irons in a crystal undergoing soft mode activated transition. (SL)

Introduces a simple one-dimensional model of a diatomic molecule that can explain all the essential features of a real two particle quantum mechanical system and gives quantitative results in fair agreement with those of a hydrogen molecule. (GA)

Describes a model used to convey the concepts of generators, electric motors, and electric meter operation. (SL)

Describes a systematic study of skills for solving problems in basic physics. Also discusses how detailed observations of individuals were used to formulate models for problem-solving processes in mechanics and applications for teaching basic college physics or engineering courses. (HM)

Distinguishes between correct concepts in physical reality and deliberate fictions which aid visualization or simplify calculations. If fictions are to be used they should be explained for what they are and taught plainly as fictions. (DF)

Discussed are how models arise, are used, and abandoned in favor of some different theory. Maxwell's work in electromagnetic theory is used as an example. (MDR)

Describes some science apparatus: included are a gene kit to demonstrate aspects of population genetics and selection, an electronic thermometer for use in the field of environmental studies, an astrobrella to use in astronomy classes, and crystal display models of different substances for chemistry classes. (GA)

Short articles describe a method of introducing the study of simple harmonic motion, and suggest models that are analogues for impedence matching, electrical transformers, and birefringent crystals. (AL)