Editorial

Science &; Education -     

Methodology and Politics in Science: The Fate of Huygens' 1673 Proposal of the Seconds Pendulum as an International Standard of Length and Some Educational Suggestions

This paper is part of a larger work on the history, philosophy and utilisation of pendulum motion studies (Matthews 2000). The paper deals with the fate of Christiaan Huygens 1673 proposal to use the length of a seconds pendulum (effectively one metre) as a universal, natural and objective standard of length. This is something which, if it had been adopted, would have been of inestimable scientific, commercial and cultural benefit. Why it was not originally adopted in the late seventeenth century, and why it was again rejected in the late eighteenth century (1795) when the Revolutionary Assembly in France adopted the metric system with the metre being defined as one ten-millionth of the quarter meridan distance – raise interesting questions about the methodology and politics of science. Given that pendulum motion is a standard component of all science courses throughout the world, and given that most science education reforms, including the US National Science Education Standards and recent Australian state reforms, require that something of the big picture of science be conveyed to students (the relationship of science to culture, commerce, history and philosophy) – it is suggested that these educational goals can be advanced by teaching about the fate of Huygens' proposal.     

The GlobalEd Project: Gender differences in a problem-based learning environment of international negotiations

The GlobalEd Project employs a technology richenvironment for high school students who wishto participate in a simulation of internationalrelations and negotiation. A simulationconsists of negotiations on a variety ofinternational policy issues conducted bystudents from 10–15 schools through anInternet-based interface. This study reportsthe findings of 234 high school participants'changes in academic and technologyself-efficacy skills, as well as knowledge,attitudes and behaviors related to academicpreparation and performance, the use ofeducational technology, and associated outcomesfrom participating in a simulation ofinternational relations. The results arediscussed in terms of the current literature onself-efficacy and gender differences incognitive process.     

Factor Structure and Construct Validity of the Counselor Skills Personal Development Rating Form

The authors completed an exploratory factor analysis of the scores of 248 counselors‐in‐training on the Counselor Skills Personal Development Rating Form (CSPD‐RF; M. B. Wilbur, 1991). Participants' counseling program was accredited by the Council for Accreditation of Counseling and Related Educational Programs at a midsize western university. The authors of the CSPD‐RF hypothesized that the CSPD‐RF measured 2 factors: (a) personal development and (b) skills development. Factor analysis yielded 4 factors (Emotional Sensitivity, Basic Listening Skills, Multicultural Skills, and Influencing Skills), accounting for 58.4% of the total variance, thus providing some support for the construct validity of the CSPD‐RF.     

The effects of group composition on achievement,interaction, and learning efficiency during computer-based cooperative instruction

This study investigated the effects of cooperative group composition, student ability, and learning accountability on achievement, interaction, and instructional efficiency during computer-based instruction. A total of 125 sixth- and seventh-grade students were randomly assigned to heterogeneous or homogeneous dyads. Groups were designated as having either group or individual account-ability for mastery of lesson content. Cooperative dyads completed a tutorial on a novel symbolic mathematics topic, featuring basic symbol learning and application of the symbols. Indicators of ongoing cooperation were collected during instruction. Five days later, students completed a posttest. Low-ability students interacted more and completed the instruction more efficiently in heterogeneous than in homogeneous groups. High-ability students completed the instruction more efficiently in homogeneous than in heterogeneous groups. Cooperation was significantly related to achievement for heterogeneous ability groups, but not for either homogeneous high- or low-ability students.     

Constructivism and science education: Some epistemological problems

The paper outlines the significant influence of constructivism in contemporary science and mathematics education and emphasizes the central role that epistemology plays in constructivist theory and practice. It is claimed that constructivism is basically a variant of old-style empiricist epistemology, which had its origins in Aristotle's individualist and sense-based theory of knowledge. There are well-known problems with empiricism from which constructivism appears unable to dissociate itself.     

Education research and the natural sciences: What can be learned from chaos theory?

This article explores some aspects of the relationship between education research and the natural sciences. It begins by pointing out that empirical or positivist science of the Modern era has had a powerful influence on the method and on the products of education research. From there the article moves to discuss the post modern sciences of the current era and speculative examples are given of the way they too may influence the method and the products of education research. In conclusion it is argued that this can and will occur as both education research and post modern science inhabit the same cultural and epistemological field.     

Dynamic properties of composite cemented clay

In this work,the dynamic properties of composite cemented clay under a wide range of strains were studied considering the effect of different mixing ratio and the change of confining pressures through dynamic triaxial test. A simple and practical method to estimate the dynamic elastic modulus and damping ratio is proposed in this paper and a related empirical normalized formula is also presented. The results provide useful guidelines for preliminary estimation of cement requirements to improve the dynamic properties of clays.