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…

Describes the differential equation solution to the mechanics problem of the motion of a free mass subject to a harmonic force which can also be illustrated by a simple analogue computer. (SL)

Advocates changing the role of secondary school science from one of theory verification and problem solving to the formulation and acceptance of hypotheses for observed phenomena. Provides an example of the procedure using Hooke's Law. (CP)

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)

Discussed is the problem of finding the volume common to two intersecting right circular cylinders. (MP)

Presents a problem in standing waves that provides an example of the mathematics used by theoretical physicists to generate predictions of new phenomena from fundamental background knowledge. Mathematical analysis required to solve problem is accomplished by simple graphical processes. (BR)

Derives the general Doppler formula in a nonstatic universe using assumptions of special relativity, homogeneity and isotropy of the universe. Examples of applications to physical cosmology are given. (SL)

Uses the Dresden and Feiock quantum mechanical Kac ring pedagogical model to illustrate formal results and approximation limitations of nonequilibrium statistical mechanics. (SL)