Details are provided of computer-simulated experiments developed by the co-directors of the Learning Research and Development Center (LRDC), University of Pittsburgh. The initial materials were designed to help students learn physics. New materials are being developed along similar lines for elementary mathematics. The views of the creators are…

A problem is detailed which has a solution that embodies geometry, trigonometry, ballistics, projectile mechanics, vector analysis, and elementary computer graphics. It is felt that the information and sample computer programs can be a useful starting point for a user written code that involves missiles and other projectiles. (MP)

Describes effects which produce the semidiurnal tidal bulges, using elementary methods, without reference to fictitious forces and without recourse to a potential. (Author/HM)

Examines the interest level of Chilean students in physics and technology in light of unacceptable performance levels in these areas. Relevant thermodynamics problems applicable to students' daily lives generated more interest. Discusses the importance of presentation to student acceptance of the curriculum. (AIM)

Compared tutoring episodes where tutoring did and did not cause learning in university physics students to inform design of intelligent tutoring systems. Found that when students were not at an impasse, learning was uncommon regardless of the tutorial explanations employed. When students were at an impasse, tutorial explanations were sometimes…

Investigates the relationship between traditional physics textbook problem solving and conceptual understanding. Reports that students had many of the well-known conceptual difficulties with basic mechanics and that there was little correlation between the number of problems solved and conceptual understanding. (Contains 21 references.)…

Examined how task design influences the effectiveness of peer collaboration in facilitating students' conceptual change in physics. Subjects were 8- to 12-year olds studying heating and cooling. Results showed the general superiority of collaborative tasks that both facilitate critical testing and require rules; task designs deploying one feature…

Presents a procedure that students can use to determine the center of mass of a thin (two-dimensional), homogenous object experimentally, analytically, and numerically. Requires students to use three distinctly different approaches to a single problem and necessitates a combination of laboratory skills, a knowledge of fundamental calculus, and…

Investigation of (n=101) 17- to 18-year-old students' responses to a task relating to Boyle's Law for gases found that 34% to 38% of students did not understand the concepts of volume and mass, respectively, of a gas under the given circumstances. (Author/MKR)

Describes the graphing calculator as a new graphical approach to standard physics problems. Presents a collision problem to illustrate its use. (JRH)

Describes a study which analyzed think-aloud protocols of four expert and four novice instructional designers working on a design problem in physics instruction. Differences between novices and experts in problem interpretation, problem analysis, problem representation, solution generation, the solution, internal resources, external resources, and…

The simple physics behind the mechanism of the toy are explained. Experimental and mathematical steps are given that help in understanding the motion of the doll-pair. The geometry of the setup is described. (KR)

An attempt to clarify the teaching of some of the concepts of thermodynamics through the observation of an experiment with an ordinary refrigeration system is presented. The cycle of operation in the refrigeration system and the individual processes in the cycle are described. (KR)

A technique that uses a three-meter Foucault pendulum and a laser to measure latitude is presented. A 40-meter Foucault pendulum located in Finland and the ways in which it is used are described. The technical details and the plans for a continuously driven laser pendulum are discussed. (KR)

Investigated the extent to which differences in problem-solving performance of stronger and weaker novices in physics arise from differences in amount of domain knowledge, in how domain knowledge is organized, and in the strategic application of domain knowledge. Differences were observed in how 10 university physics students solved easy and…