The main advantage of using these concepts lies in the reduction of algebraic work involved in solving certain dynamics problems. A brief analytical treatment of the acceleration center and a description of a virtual work principle for equipollent systems in the kinetics of rigid bodies are provided. (MVL)

The egalitarian dogma, the belief that blacks and whites are genetically equal in cognitive ability, has been perpetuated through intimidation and pious thinking. Data on racial differences and the corruption of scholarship that causes them to be ignored are discussed. (SLD)

One of the signatures of scientific writing is its ability to present the claims of science as if they were "untouched by human hands." In the early years of experimental education, researchers achieved this by adopting a citational practice that led to the sedimentation of their cardinal method, the analysis of variance, and their standard for…

This paper is about the structural equation modelling of quantitative measures that are obtained from a multiple facet design. A facet is simply a set consisting of a finite number of elements. It is assumed that measures are obtained by combining each element of each facet. Methods and traits are two such facets, and a multitrait-multimethod…

In this article, the author gives basic information on constructing a wind tunnel that teachers can use for instructional activities with their students for many years to come. He illustrates and describes the procedure and materials that he developed in constructing his own wind tunnel. This information should be viewed as a guide. (Contains 1…

REACH (Reaching Engineering and Architectural Career Heights) is a weeklong summer academy outreach program for high school students interested in engineering, architecture, or technology. Through module-­based instruction, students are introduced to various engineering fields. This report describes one of the modules focused on introducing…

This article discusses a theoretical aspect of composition studies concerning the development of "an irenic multicultural composition classroom." The author notes that such a classroom environment, where all parties learn how to get along and perhaps learn to "agree to disagree," has been a long-time goal of composition studies theorists. However,…

Major concepts can help create thinking frameworks that are powerful enough to make additional input more meaningful. As a result, the content is richer, more diverse, and more widely applicable. This set of concept papers was produced because concepts are not uniformly understood by practitioners. Each is designed to introduce a concept and to…

This document contains the proceedings of the 2001 Annual International Conference of the Association for the Education of Teachers in Science which was held in Costa Mesa, California, January 18-21, 2001. Papers include: (1) "An Elementary Preservice Teacher's Search for Solutions about the Evolution-Divine Creation Question: The Story of Tracy"…

This document explains the Arkansas science benchmarks for grades K-4 which were developed to provide guidance to science teachers. The content standards for three strands--physical science systems, life science systems, and Earth science/space science systems--were identified based on grade levels. (YDS)

This document contains the proceedings of the 2002 Annual International Conference of the Association for the Education of Teachers in Science which was held in Charlotte, North Carolina, January 10-13, 2002. Papers include: (1) "Teaching Science Methods Courses with Web-Enhanced Activities" (Alec M. Bodzin); (2) "How Is Your Lawnmower Working?…

"How Students Learn: Science in the Classroom" builds on the discoveries detailed in the best-selling "How People Learn." Now these findings are presented in a way that teachers can use immediately, to revitalize their work in the classroom for even greater effectiveness. Organized for utility, the book explores how the principles of learning can…

Describes the Assessment of Performance Unit (APU) Science project. Discusses the findings including perceptions of problems, procedural understanding, control of variables, and measurement strategies. Suggests a change from traditional learning strategies to more student-centered ones. (YP)

Presents two recent cases that can be used in the classroom to illustrate the application of scientific methods in biological research: (1) the use of a complementary RNA or DNA molecule to block the production or translation of an mRNA molecule; and (2) the development of HIV trial vaccines. Contains 20 references. (WRM)

Despite the ubiquity of the term "inquiry" in science education literature, little is known about how teachers conceptualize inquiry, how these conceptions are formed and reinforced, how they relate to work done by scientists, and if these ideas about inquiry are translated into classroom practice. This is a multicase study in which 14 preservice…