Situating Computer Simulation Professional Development: Does It Promote Inquiry-Based Simulation Use?

ABSTRACT

This mixed-methods study sought to identify professional development implementation variables that may influence participant (a) adoption of simulations, and (b) use for inquiry-based science instruction. Two groups (Cohort 1, N = 52; Cohort 2, N = 104) received different professional development. Cohort 1 was focused on Web site use mechanics. Cohort 2 was situated in nature and provided three additional elements: (a) modeling simulation use within inquiry-based instruction; (b) collaboration; and (c) provision of content-relevant lesson planning time. There was no difference in the extent of simulation use between cohorts, χ²(1) = 0.878, p = .349, φ = ?0.075. Results were inconclusive for a difference in observed inquiry instruction as Fisher's Exact Test was insignificant but had a medium effect size, p = .228, φ = 0.283. Computer-based standardized tests emerged as a novel technology integration barrier. These findings have implications for school policy, professional development, and future research.     

Reviews,Letters and Listings

The Internet: A Writer's Guide by Jane Dorner. London: A. & C. Black, 2000. Pp. x + 196, Hardback, £9.99. ISBN 0‐7136‐5192‐X     

‘Sport was the centre of my memories’: the performance of sport in Australia’s Asian garrisons

ABSTRACT

For better or worse, sport mirrors and mediates much of everyday life. Within both the military and colonial spheres, the physical attributes of sport are especially prized as tangible representations of social and cultural hierarchies. In turn, this further enhances the prestige and influence of sport within these two particular environments. Sport becomes particularly potent in instances where military forces undertake garrison duties in overseas colonial and post-colonial environs. This paper highlights the centrality of sport to the lives of the Australian service personnel and their families who were posted to Australia’s garrisons in the decades after World War II. The myriad roles of sport within these overseas garrison environments – as comforter, connector, healer and reinforcer on the one hand, and as isolator, oppressor and subverter on the other – are explored. This paper suggests that, for a variety of reasons, participation in sports served as the central organising force for most Australian service personnel and their families in these Australian military communities.     

On the commutativity of discrete memoryless channels in cascade

The conditions are discussed under which two square discrete memoryless channels (DMCs) in cascade commute. Two different types of channel commutativity are considered: matrix commutativity, in which changing the order of two cascaded channels results in an identical overall channel, and capacity commutativity, in which the order of two cascaded channels results in an overall channel with the same capacity as the original cascade. A theorem is presented giving necessary and sufficient conditions for a pair of square DMCs to be matrix commutative and note its implications for a number of example channel cascades. Finally, it is shown that all pairs of r-ary symmetric channels are matrix commutative, regardless of their crossover probabilities.     

Evidence for Informed Preservation Planning and Advocacy: A Synoptic View

ABSTRACT

We argue the need to demonstrate the value of preservation services to institutions, the public and funders, because it matters conceptually and needs to be supported and validated. To address this imperative, improved and focused data capture and its use by collection managers is advocated as the necessary first step towards the development of an evidence-based culture for preservation services and synoptic decision-making, where evidence enables us to optimise the outcome of planning. To do so, we need tools that enable us to evaluate diverse preservation scenarios. We demonstrate the potential of emerging cross-disciplinary tools and protocols developed in the recent years such as attitude surveys, computational modelling and demographic modelling. These offer evidence that informs prospective preservation planning and, importantly, provides a credible evidence base for advocacy. These possibilities are discussed within the wider context of well-established preservation planning protocols that have shaped collection management for three decades, broadly characterised as retrospective.