Discusses consequences of using computer-assisted learning (CAL) packages for experiment planning in undergraduate physical chemistry laboratories and examines textbook presentations and syllabus criticism. An approach to syllabus reconstruction that combines operational research with experiences of CAL development program is demonstrated through…

Presents an experiment which links mass spectrometry to gas chromatography. Also presents a simulation of iron extraction using a ZX81 computer and discussions of Fehling versus Benedict's solutions, transition metal ammine complexes, electrochemical and other chemical series, and a simple model of dynamic equilibria. (JN)

A PET microcomputer is used as an accurate and programmable timer to support data acquisition from velocity experiments covering falling, rolling, and sliding objects, and human velocity, acceleration, and power measurements. The inexpensive instrumentation is simple and easy to use and compares favorably with conventional, more expensive…

Investigated the efficacy of an instructional program designed to induce students to construct a mental scheme in which experimental design and natural experiments are understood as facets of the same problems and which incorporates a general solution procedure applicable to both. Results show a highly significant posttest achievement by the…

Senator Edward Kennedy, from the Committee on Health, Education, Labor, and Pensions, submitted this report in accompaniment to United States Senate Bill 2969 (S. 2969), which was introduced by Senator Kennedy and Senator Gregg on September 19, 2002. S. 2969 provides for an office within the Department of Education to conduct high quality research…

Student-centered approach of scoring the concept maps consisted of three elements namely symbol system, individual portfolio and scoring scheme. We scored student-constructed concept maps based on 5 concept map criteria: validity of concepts, adequacy of propositions, significance of cross-links, relevancy of examples, and interconnectedness. With…

Assuming that dynamic features of Dynamic Geometry Software may provide a basic representation of both variation and functional dependency, and taking Vygotskian perspective of semiotic mediation, a teaching experiment has been designed with the aim of introducing pupils to the idea of function. First data coming from the observations in Italian…

Plant tissue culture has developed into a valid botanical discipline and is considered a key area of biotechnology, but it has not been a key component of the science curriculum because of the expensive and technical nature of research in this area. This manual presents a number of activities that are relatively easy to prepare and perform. The…

Although the benefits to academic achievement and cognitive development experienced by children participating in the Carolina Abecedarian Project have been well documented, there is little information available on the cost effectiveness of programs based on the Abecedarian preschool model. This study involved a benefit-cost analysis of the…

This document presents a collection of articles selected from the Journal of College Science Teaching. The selected articles represent how college science teaching should be practiced and include modifications in classrooms and laboratories to allow for the development of inquiry skills. Articles include: (1) "What Should Students Learn about the…

This study investigates the ideas and beliefs of a small group of high school science teachers about student observations in the science classroom. Student views on science classroom observations have been previously reported on, but teachers and their students' ideas about observation is a very little researched area in science education. There…

The Project on State-Level Child Outcomes was initiated by the U.S. Department of Health and Human Services to examine the effects on children of waiver policies related to state welfare reform efforts prior to the passage of federal welfare reform legislation. This report details the project's examination of child well-being in the context of…

Rationale, objectives, and instructional strategies for a directed study course on spectrophotometry are provided. Descriptions of three experiments and four student research projects are also provided. Objectives, laboratory procedures, advantages, and disadvantages for the experiments and projects are included. (JN)

Describes the design, construction, and use of oversize lecture-demonstration atomic/molecular models. These models appeal to both concrete and formal operational students. Also describes construction and use of an "spdf" sandwich board and an experiment using attribute blocks. (JN)

Describes a software/hardware system for running computer-controlled physics experiments. Each set of experiments consists of a disk (for Apple 48K), instruction manual, and student manual. The pendulum and acceleration experiments are described. Although not described, experiments using a temperature probe are also available. (JN)