In the study, one of each of pairs of average and high ability eighth-grade classes was designated, by random means, as the experimental class. Students in the experimental classes viewed projected 2 x 2 colored slides which represented sequences of the same laboratory activities as those performed by the manipulative group. All other…

A laboratory experiment was conducted with 28 Black and white, male and female Educators in dyadic interaction with a B/w, M/F stranger of fixed location, position, and gaze. Race and sex of stranger influenced Educator-set impersonator distance, gaze and bodily orientation in a one-minute encounter as hypothesized. If many school personnel do…

Provides the syllabus for an advanced level (A-level) electronics course in which communication computer and feedback systems are analyzed. (CP)

Investigates the effectiveness of different elements of diagnosis and prescription incorporated into help sessions for college science students. Results show that following laboratory classes with help sessions that are based on the results of diagnostic tests can alter achievement significantly, whether help sessions are directed by teacher or…

This freshman chemistry lab relates stoichiometric problems to real situations. It requires students to measure the Fe impurity in reagent grade calcium chloride. (BB)

This experiment provides an excellent practical application of computer-controlled spectrometers. (BB)

Explains a laboratory exercise where 2-methylpyrazinepentacyanoiron (II) is synthesized by thermal and photochemical pathways. (GA)

The demonstrations and experiments described in this article are appropriate for junior high school and older students, including beginning students in college biology or botany. Included are culture and observation of zoospores, zoospore attraction to plant roots, and other topics. (BB)

Presents two experiments concerned with mapping skills. Directions are given for calculating the circumference of the earth and for developing a model of the solar system using familiar territory as a frame of reference. (MA)

The use of basic oceanography equipment in junior high and senior high school science applications is described. (CP)

A model of Brownian motion is discussed which includes viscosity effects. The model lends itself to Monte Carlo simulation and thus is suitable for an elementary physics laboratory experiment. (BB)

Describes science-related competitive events in which 10th and 11th grade students participated. The organization and operation of the olympiad is detailed. (CP)

Topics in biology A-level projects are briefly described. (CP)

Studies the effects of computer-managed self-paced (CMSP) and teacher-managed group-paced (TMGP) laboratory instruction on the attitudes toward science of ninth-grade students. All students were enrolled in an introduction to chemistry and physics course. Posttests revealed that groups did not differ significantly on achievement measures but the…

Presents an experiment in which students prepare salt-water taffy, and concrete props for teaching weak acids and bases. (SL)