Gender, task contexts, and children's performance on a computer-based task

Gender differences in response to computers have been widely reported. This study addresses the question of how far the context in which a computer task is presented can affect girls' and boys' on-task performance. In an experimental study involving 60 ten and eleven year-olds, we examine the effects of differential contextualisation on girls' and boys' performance on a computer-based perceptual-motor skills task. Our findings illustrate that even with a single, standard piece of software, children's performance can be substantially affected by the context in which that software is presented. The results suggest that gender differences in children's responses to computer tasks are relatively labile, and highly context sensitive. The implications and possible explanations for these findings are considered.     

Back to the future for KM: the case for sensible organisation

Knowledge Management Research & Practice - There are many times in our brave new web-based world that we seem to have lost the art of making common sense decisions and judgements. The current...     

Education for the Environment: a critique

This paper acknowledges that, in many contexts, the term ‘education for the environment’ has generated powerful images which have resonated with educators seeking empowerment for themselves and their students. We also acknowledge that it has enabled inquiry into socio‐political dimensions of environmental issues. However, we propose that this term has become a slogan and, as such, its use has been insufficiently problematised. We identify anomalies and inconsistencies associated with the use of ‘education for the environment.’ Further, we argue that the term is conceptually and linguistically flawed and that we may not need, or want, the structures that it imposes. In challenging, rather than casually accepting, this terminology, we seek to regenerate a fundamental dimension of the discourse within environmental education.     

Creating Meaning for and with the Graphing Calculator

In this study, we seek to describe how the meaning of a tool was co-constructed by the students and their teacher and how the students used the tool to construct mathematical meaning out of particular tasks. We report the results of a qualitative, classroom-based study that examined (1) the role, knowledge and beliefs of a pre-calculus teacher, (2)how students used graphing calculators in support of their learning of mathematics, (3) the relationship and interactions between the teacher's role, knowledge and beliefs and the students' use of the graphing calculator in learning mathematics, and (4) some constraints of the graphing calculator technology that emerged within the classroom practice. We found five patterns and modes of graphing calculator tool use emerged in this practice: computational tool, transformational tool, data collection and analysis tool, visualizing tool, and checking tool. The results of this study suggest that nature of the mathematical tasks and the role, knowledge and beliefs of the teacher influenced the emergence of such rich usage of the graphing calculator. We also found that the use of the calculator as a personal device can inhibit communication in a small group setting, while its use as a shared device supported mathematical learning in the whole class setting.This revised version was published online in September 2005 with corrections to the Cover Date.     

Success or Failure in a Core University Unit: What makes the difference?

Factors which have been identified as contributing to student academic success at the degree and program level in tertiary study include mode of study, student age, previous tertiary qualifications and past academic performance. Limited published Australian research is available, however, on student academic success in individual subjects. This study investigated identifiable patterns related to the academic success of three separate cohorts of students in an Early Childhood second-year Language, Literature and Literacy unit (N = 601). The data support previous research findings with regard to the effect of mode of study, previous university qualifications and past academic performance on academic success in this subject. In contrast with most previous studies, this study found a significant relationship between previous study at TAFE (college study at a Technical and Further Education institute) and failure in an academic unit, perhaps due to the timing of this unit in the students' overall program. Further implications for Early Childhood teacher education are discussed.     

Development of orthographic skills in Chinese children

This study investigates possible developmental trends in children's invented spelling (or spelling errors) in Chinese elementary schools. The entire study consists of two substudies, Study A and Study B. Study A analyzes over 7000 invented spellings collected from the writing samples of 1200 children. Study B analyzes 3995 invented spellings that were collected from the spelling tests of 300 children. These invented spellings are sorted initially according to emerging patterns according to the way the invented spellings deviate from standard spellings; they are then further subsumed into three general categories according to the linguistic principles of Chinese characters - phonologically based spelling errors, graphemic spelling errors, and semantic spelling errors. Qualitative analysis of the invented spellings of these three categories indicates that children's spelling errors are not random; rather they reflect the development of children's orthographic knowledge. Regression analysis for linear trend shows that a developmental trend in the use of spelling strategies exists: at the lower elementary level, phonological strategies predominate; as grade level advances, the use of graphemic and semantic strategies increases.     

Teachers designing curriculum as professional development: A model for transformational science teaching

We have designed a model for transformational science teaching focused on linking theory and practice through curriculum decision making that has been the framework for professional development sessions for middle-grade science teachers during the past 5 years. Interviews with teachers revealed that their experiences with curriculum development were of significant value in making decisions concerning the design of classroom environments. As teachers reflected on current research about teaching and learning, in collaboration with university scientists and science educators, they were informed by theoretical perspectives which held implications for their practice. Curriculum development became a vehicle for professional development and school reform; however, it was vital that the teachers were in clear communication with their administrators and communities concerning reform issues. Students and teachers from schools implementing the model and from control sites were interviewed to determine the model's influence on instructional practices and student attitude and achievement in science. The five-phase model for transformational science teaching is discussed here, accompanied by teacher comments about tensions experienced at each phase. This discussion is followed by an analysis of teacher and student interview data that reveals teachers' use of instructional strategies and students' attitudes toward science. Results and analysis of student performance on a mandated end-of-grade science test are also included. From this evidence, we recommend a new design for professional development opportunities for teachers that engages them in decision making as they reflect about the connections between theory and practice and the value of continually testing, revising, and reevaluating curriculum and instructional issues. J Res Sci Teach 34: 773–789, 1997.     

A comparison of methods to determine maximal accumulated oxygen deficit in running

The aim of this study was to compare maximal accumulated oxygen deficit (hereafter O2 deficit) estimated from the methods of Whipp et al. (1986), Medbo et al. (1988), and Hill et al. (1998) to determine whether they agree sufficiently to be used interchangeably. Nineteen moderately to highly trained endurance runners first performed an incremental test to exhaustion for the determination of maximal oxygen uptake ([Vdot]O(2max)) and peak treadmill speed, followed by six randomly ordered constant-speed tests at 95, 100, 105, 110, 110, and 120% of peak treadmill speed. All tests were separated by at least 72 h and were performed within 4 weeks. The method of Whipp produced an O(2) deficit estimate that was lower than that derived from the method of Hill or Medbo (bias +/- 95% limits of agreement: -29.6 +/- 36.6 and -26.1 +/- 32.8 ml . kg(-1), respectively; P < 0.001). The O2 deficit did not differ between the methods of Hill and Medbo (bias +/- 95% limits of agreement: 3.5 +/- 41.6 ml . kg(-1); n.s.). However, poor correlations (0.21 < r < 0.33; n.s.) together with wide limits of agreement between O2 deficit estimates (70 - 80% of the mean response) clearly question using these methods interchangeably.     

Patient-based benefit-risk assessment of medicines: development,refinement, and validation of a content search strategy to retrieve relevant studies

Introduction:Poor indexing and inconsistent use of terms and keywords may prevent efficient retrieval of studies on the patient-based benefit-risk assessment (BRA) of medicines. We aimed to develop and validate an objectively derived content search strategy containing generic search terms that can be adapted for any search for evidence on patient-based BRA of medicines for any therapeutic area.Methods:We used a robust multistep process to develop and validate the content search strategy: (1) we developed a bank of search terms derived from screening studies on patient-based BRA of medicines in various therapeutic areas, (2) we refined the proposed content search strategy through an iterative process of testing sensitivity and precision of search terms, and (3) we validated the final search strategy in PubMed by firstly using multiple sclerosis as a case condition and secondly computing its relative performance versus a published systematic review on patient-based BRA of medicines in rheumatoid arthritis.Results:We conceptualized a final search strategy to retrieve studies on patient-based BRA containing generic search terms grouped into two domains, namely the patient and the BRA of medicines (sensitivity 84%, specificity 99.4%, precision 20.7%). The relative performance of the content search strategy was 85.7% compared with a search from a published systematic review of patient preferences in the treatment of rheumatoid arthritis. We also developed a more extended filter, with a relative performance of 93.3% when compared with a search from a published systematic review of patient preferences in lung cancer.     

Our city of colours: queer/Asian publics in transpacific Vancouver

This article examines the contested relation between discourses of ethnic subjectivity and queer critique of homophobia and transphobia in Vancouver, a transpacific city in Canada that is being touted as “the most Asian city outside of Asia.” I analyse the perceived association of Chinese communities with moral conservatism and the concomitant existence of a vibrant queer Asian cultural scene in the city as a discursive clash between two cultural publics. I examine the underlying dynamics of their antagonism as well as their potential for mutual engagement.