The purpose of this research was to determine if various modes of positive reinforcement can result in the improvement of the beginning speaker's speaking skill. Nine drill sections of a beginning speech course were compared via nonparametric analysis of variance routines. Improvement in gestural skill was ascertained by measuring the differences…

As one of four research projects conducted to increase the amount of study focused on traditional nursery school (group day care centers) and family day care centers, this paper presents and tests two hypotheses: (1) that there would be more verbalizations and more movement in the family day care center, and (2) that there would be less movement…

Force diagrams involving angular velocity, linear velocity, centripetal force, work, and kinetic energy are given with related equations of motion expressed in polar coordinates. The computer is used to solve differential equations, thus reducing the mathematical requirements of the students. An experiment is conducted using an air table to check…

Examples of the presentation and solution of variations on a common projectile trajectory problem are presented. (BB)

Provides an apparatus for the analysis and evaluation of television by categorizing the existential media factors such as light, two- and three-dimensional screen space, time-motion, and sound. The correlation of one factor, time, with experiental phenomena such as instantaneousness and irrevocability of the moment and the complexity of the…

Presented and discussed is a program for a programable calculator that predicts the altitude achieveable by a model rocket. (MP)

Looks briefly at the abilities of children within the ages of three and thirteen and at movement and dance appropriate for them. (Author/RK)

Considers the problem of the radiation emitted by a charged particle undergoing eternal hyperbolic motion. (Author/SL)

Through simple and pleasurable movement experiences a very young child can be led to an understanding of the intricate craft of music and the signs and symbols of the music "language", while developing at the same time an increasing appreciation and perception of music as an artistic expression. (Author)

Discusses how the discovery of chaos has created a new paradigm in scientific modeling and how findings are contributing to changes in thought about many different branches of science. Includes explanations and examples of how chaotic behavior can be understood. (ML)

Explains the phenomenon of Brownian motion, which serves as a mathematical model for random processes. Topics addressed include kinetic theory, Einstein's theory, particle displacement, and others. Points out that observations of the random course of a particle suspended in fluid led to the first accurate measurement of atomic mass. (DH)

Shows that the angle of projection of a bullet is not the same as the angle of the bore of the firearm just before firing. Includes an equation that is useful when considering the firing of bullets and arrows in the air. (JN)

Presents an experiment which focuses on the inertial properties of a rigid body as expressed in terms of principal axes and moments of inertia. Background information, a description of the apparatus needed, and a discussion of results obtained are included. (JN)

Describes two studies of five- to nine-year-old children. Study 1 illustrated a low incidence of animistic thought and indicated the salience of movement in a group of northern, Unitarian children. Children demonstrated a variety of criteria for aliveness. Study 2 replicated findings in a group of southern, Baptist children. (Author/KS)

Describes how to record and study two-dimensional collisions using video-recording equipment. These techniques have been used by students in a calculus-based physics laboratory for such experiments as the analysis of conservation of momentum on the airtable. (JN)