Describes an experiment where elementary students determine the optimum angle of inclination for the greatest amount of distance a marble will roll when accelerated down an inclined plane. (PR)

Describes an experimental sequence using the force probe to develop the relationship between net force and acceleration. (PR)

Two experiments examined how learning from different media--real pulley systems or simple line diagrams--affected mechanical learning and problem solving. The first showed that subjects' learning improved equally in both cases; all subjects showed an increase in quantitative understanding as they learned; and subjects manipulating real pulley…

The 9 articles of this theme issue stem from a project on alcohol and drug abuse that involved 14 projects, 10 of which began with randomized clinical trials. These papers describe implementation problems associated with experimentation in field research and the focus on ensuring internal validity. (SLD)

Presents performance assessments, written by a team of Wisconsin science teachers, designed to see if students know, have practiced, and are able to perform the skills associated with science problem solving. (JRH)

Presents the National Science Education Standards as an exceptionally well researched tool intended to assist teachers in curriculum development. Describes an activity that meets the standards and encourages students to work together. (JRH)

Specific ways in which lectures, laboratories, cooperative group learning, and examinations and grading can be used as part of a strategy to increase pharmacy student interest and involvement in basic science are outlined. The techniques focus on making the presentation of content at least as important as the content itself. (MSE)

Presents an activity in which students make a simulated solar panel to learn about the principles behind energy production using solar panels. Provides information about how solar panels function to produce energy. (MCO)

Describes an experiment to determine which of four objects, hollow cylinders, solid cylinders, hollow balls, and solid balls, will reach the bottom of an inclined plane first when released simultaneously. Provides solutions to the problem and supplementary exercises. (MDH)

Summarizes comparisons of self-reported interest by gender and experimental condition for middle school students (n=101) who performed scientific experiments under conditions designed to vary across difficulty levels, social contexts, and scenarios of fantasy to realism. Findings indicate that boys were more attentive to aspects of experimental…

Presents a sequence of activities designed to allow eighth grade students to deal with one of the fundamental relationships that govern energy distribution. Activities guide students to measure light bulb brightness, discover the inverse square law, compare light bulb light to candle light, and measure sun brightness. (two references) (MCO)

An experiment accompanied by a series of writing exercises that engage students in activities that characterize scientific research is described. The exercise emphasizes experimental design and data analysis over technical manipulation. Possible issues for discussion and opportunities for collaboration and peer review are discussed. (KR)

Activities that use dandelions to show the phenomena of geotropism and autotropism are described. Directions for collecting the stalks and observing the gravitropic response are included. The topics of lag time and bending rates, autotropism, growth rate changes, presentation time, and gravity detection are discussed. (KR)

Discusses the principles of magnetic levitation presented in the physics classroom and applied to transportation systems. Topics discussed include three classroom demonstrations to illustrate magnetic levitation, the concept of eddy currents, lift and drag forces on a moving magnet, magnetic levitation vehicles, levitation with permanent magnets…

The function of self-injurious behavior (SIB) by an adult with severe mental retardation was analyzed via descriptive and experimental analysis methodologies. Results indicated that SIB occurred more often when the participant was presented with nonpreferred novel activities. Intervention resulted in the use of negation to terminate the…