10 resultados para Structural modeling of digital informational environments

em Deakin Research Online - Australia


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In line with global trends, Australian educational policy emphatically recognises the need for contemporary learners to be digitally literate, with provision of 'one-to-one' devices to individual learners in schools a major implementation strategy. However, without teacher commitment, the benefits of such investment in one-to-one programs are undermined and the devices themselves are under-utilised. Too often, the focus on hardware is not accompanied by insight into the organisational learning and change required in pedagogical practices. In the knowledge that curriculum and pedagogical renewal rests squarely with teachers and leaders rather than with technological hardware and software per se, this article draws on outcomes/findings from a school/university ethnographic collaboration which closely explored the introduction of a school-funded, one-to-one netbook program in a school excluded from a state-wide initiative. It seeks to make visible the often overlooked work of teachers as members of learning organisations through a narrative of change. The narrative focuses on teacher agency and capacity to mobilise a school community to commit to a vision of; no-blame risk taking; collective professional learning; the power of purpose and passion; leadership in the face of government practice which disempowered teachers and disadvantaged students; and the development of an innovation 'from the inside'.

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In the 21st Century young people have the opportunity to create texts that were unimaginable for previous generations. Today’s children live and learn while immersed in a technological world that is fast paced and constantly in a state of change. As technology becomes more and more accessible and specifically marketed to children of the 21st century, educators are challenged to re-consider the literacy skills required to be successfully and safely literate, and the repertoire of literacy pedagogies teacher must have to effectively engage these young people in learning. While there is much evidence to suggest that schools and teachers are not all meeting this challenge, there are some inspiring examples in which schools, communities and teachers are taking up the challenge. This paper presents one case study, which is explored through a 21st century literacy framework that allows us to interpret and analyse the multimodal texts and the processes students use in their creation. Attention is paid to how the case study teacher created meaningful learning experiences and opportunities for them to create and interact within multimodal communications environments, both within and beyond the school.

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Development of a digital material representation (DMR) model of dual phase steel is presented within the paper. Subsequent stages involving generation of a reliable representation of microstructure morphology, assignment of material properties to component phases and incorporation of the model into the commercial finite element software are described within the paper. Different approaches used to recreate dual phase morphology in a digital manner are critically assessed. However, particular attention is placed on innovative identification of phase properties at the micro scale by using micro-pillar compression tests. The developed DMR model is finally applied to model influence of micro scale features on failure initiation and propagation under loading conditions.

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In the 21st century young people live and learn in a technological world that is fast paced and in a constant state of change. As technology becomes more and more accessible outside of the classroom,educators are challenged to re-consider the literacy skills required to be successfully literate. Enacting literacy teaching and learning in and for the 21st century requires teachers to update their pedagogicalknowledge, skills and contextual understanding of the world children live and learn in. This chapter offers a brief overview of the Australian Curriculum, locating it within a 21st century learning discourse.The authors interpret and analyse one young student’s creation of a digital text in a movie modality. Attention is paid to how the case study teacher created meaningful digital literacy learning experiences and opportunities for children to create and interact in social, multimodal textual environments, both within and beyond the school.

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The development of data rich digital environments for the construction industry has been problematic despite the initial optimism when their application to design and construction was first considered. This paper reviews the current state of the art research into the application of information technology in design and construction and identifies the more critical issues in its adoption. In conclusion the paper then proposes a preliminary theoretical model being developed as a research tool for investigation into highly detailed information flows in a case study building renovation project. This investigation aims to track the detailed information flows and knowledge system used by the stakeholders in the building project.

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The objective is to test the consistency of measurement and structural properties in a model of corporate codes of ethics (CCE) on an aggregated level and across multiple samples derived from three countries, namely Australia, Canada and the USA. The properties of four constructs of CCE are described and tested, these being: surveillance/training, internal communication, external communication, and guidance. The conclusion is that the measurement and structural models on an aggregated level have a satisfactory fit, validity and reliability. Furthermore, they are consistent when tested on each of the three samples (i.e. cross-validated). The cross-cultural model makes a contribution in addition to previous mostly descriptive studies and theory in the field using confirmatory factor analysis and structural equation modeling.

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Purpose – The purpose of this paper is to test the measurement and structural properties in a model of organizational codes of ethics (OCE) in Sweden.

Design/methodology/approach – The measurement and structural properties of four OCE constructs (i.e. surveillance/training, internal communication, external communication, and guidance) were described and tested in a dual sample based upon private and public sectors of Sweden.

Findings – Results show that the measurement and structural models of OCE in part have a satisfactory fit, validity, and reliability.

Research limitations/implications – The paper makes a contribution to theory as it outlines a set of OCE constructs and it presents an empirical test of and OCE model in respect to measurement and structural properties. A number of research limitations are provided.

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It provides a model to be considered in the implementation and monitoring of OCE. The present research provides opportunities for further research in refining, extending, and testing the proposed OCE model in other cultural and organizational settings.

Originality/value – The OCE model extends previous studies that have been predominately descriptive, by using confirmatory factor analysis and structural equation modeling.

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This paper has been prepared to address the issues and questions of the theme ‘access, equity and socio-cultural issues’. Findings from two studies are reported. In the first study gender issues in mathematical learning environments when computers were used were investigated. In the second effective practices for teaching disadvantaged or marginalised students with digital technology are canvassed. Teaching for equity and social justice in the digital age is complex. Teachers need to be aware that their beliefs and classroom practices may exacerbate gender and cultural inequalities in mathematics learning. Approaches that are consistent with social-constructivist and democratic theories need further investigation.

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Teachers' beliefs about what it is (or is not) possible to achieve with digital games in educational contexts will inevitably influence the decisions that they make about how, when, and for what specific purposes they will bring these games into their classrooms. They play a crucial role in both shaping and responding to the complex contextual factors which influence how games are understood and experienced in educational settings. Throughout this article the authors draw upon data collected for a large-scale, mixed-methods research project focusing on literacy, learning and teaching with digital games in Australian classrooms, to focus explicitly on the attitudes, understandings and expectations held about digital games by diverse teachers at the beginning of the project. They seek to identify the beliefs about games that motivated teachers' participation in a digital games research project while focusing, as well, on concerns that teachers express about risks or limitations of such a project. The authors' aim is to develop a detailed picture of the mindsets that teachers bring to games-based learning environments, and the relevance of these mindsets to broader debates about the relationship between games, learning and school.