In almost any given day, one will stumble upon sounds that are out of the ordinary, distinct enough to capture one's attention. Ordinary sounds in a home are represented by the white-noise-like background created by speaking, moving around, household appliances running, and so forth. The out of the ordinary is the sparkling sound of a knife blade…

The year 2014 marked the four-hundred-and-fiftieth anniversary of Galileo's birth, making it the perfect occasion to present and illustrate a GeoGebra applet which reproduces some of Galileo's celebrated experiments on the uniformly accelerated motion, as reported on in "Discourses and Mathematical Demonstrations Relating to Two New…

Describes a project designed to develop 50 tutorial lessons for students having difficulty with specific types of physics problems. Because the intent was to tutor problem solving rather than teach physics concepts, lessons were designed for use after classroom instruction had occurred. Includes project goals, development, implementation, results,…

Analyzes trends in physics teaching represented by papers presented at American Association of Physics Teachers' annual meetings. Major topics examined for the period from summer 1971 through summer 1983 include: Piagetian studies; personalized system of instruction; media; energy and environment; astronomy; and computer-oriented topics. (JN)