Exercising sociomathematical norms in classroom discourse about data representation : insights from one case study of a grade 6 lesson in Indonesia

This paper examines a research study to foster mathematical discourse about data representations among Indonesian students. It was situated in the context of implementing an Indonesian version of Realistic Mathematics Education, labelled as PMRI, in primary schools. A case study of one lesson involving Grade 6 students on the choice of data representations in Yogyakarta will be discussed. The analysis focused on the enacted social norms and sociomathematical norms during a wholeclass discussion and their impacts on students’ knowledge of data representations. The need for constant effort to enact these norms in classroom mathematical discourse is highlighted.

Beyond the rational museum : toward a discourse of inclusion

Museum discourse is not inclusive in that it neglects or negates the affective potential of museums. Affect is precognitive sensation, it is unexpected, and leaves a more lasting impression than re-cognition. The museum’s role in the shaping of histories, and its origins in class and gender exploitation are important areas of discourse, however, the focus on these issues also limits discourse. Ideologically driven critique seems unable to explain the experiential affect of exhibits of art and material culture. Arguably, an alternative museum with a contradictory set of meanings has always existed alongside the rational museum of critical discourse. Some critics do acknowledge that their disciplines seem unable to grapple with this ‘alternative museum’, however, there is not a critical vocabulary of affect with which to give it appropriate expression. Gilles Deleuze’s philosophical ideas give relevance to affect, and are useful in shaping or ‘shocking’ a way toward a more inclusive critical discourse, which might lead toward more inclusive museum practices.

Novel watermarking methods for copyright protection of audio signals

This research presented improved watermarking methods for mono and stereo audio signals. To enhance the performance, novel methods are developed using echo hiding techniques and patchwork-based algorithms. The superior performances of the proposed methods are demonstrated by theoretical analysis and simulation examples, in comparison with the existing methods.

Applying King et al.'s taxonomy to frame the IS discipline's engagement in green IS discourse

This paper considers how the IS discipline can engage with discourse on the institutions and their interventions which influence and regulate green IS innovation. To consider possible responses, we apply King et al.’s (1994) taxonomy, based on Institutional Theory, to frame a research agenda to guide future exploration and debate on the interventions to facilitate green IS innovation. Through the application of the taxonomy, we derive several pertinent questions for the discipline to consider as part of this debate. We conclude that the IS discipline can, and indeed should, play a more prominent role both through traditional responses (e.g., descriptive studies of green IS methodologies, organisational best practice, maturity models, etc.), but also through more active engagement in the form of participation and advocacy in shaping future green policy and regulation.

Power and discourse in information systems practice : a narrative research method

Relationships of authority and control and their effect on information systems actors has interested IS researchers since at least the 1980’s. The study of power itself has also troubled organisational and sociological theorists, from which information systems researchers have drawn various lines of attack. Our approach to power rests on an historical synchronic theory that seeks to uncover the places and operation of power through an examination of narrative ‘testaments’ which are analysed not from the perspective of the giving individual but from the structural elements of discourse that they may represent. This paper compliments previous research methods on the topic of power especially in expert reports and systems development methodologies; provides specific guidance on how to apply the notion of discourse synchronically; and reconstructs the commercial practice of information systems, not as a broad church, but as one of competing and epistemologically incommensurate discourse, where the fates of the powerful are balanced against the fearful and silent disciplined.

In what ways does policy on academic integrity, copyright and privacy need to respond in order to accommodate assessment with Web 2.0 tools?

Increasingly social web technologies, such as blogging and micro-blogging, audio and video podcasting, photo/video, social bookmarking, social networking, wiki writing or virtual worlds are being used as forms of authoring or content creation to support students’ learning in higher education. As Web 2.0 teaching practice is characterised by open access to information and collaborative networks there are both familiar and novel challenges for policy-makers in higher education institutions. The Government 2.0 Taskforce heralded legislative and practice changes necessary because of Web 2.0. We reflect on the qualitative feedback received from innovative higher education practitioners using Web 2.0 to assess student work. This indicates a need for information policy review to accommodate the cultural shift towards information exchange and communication across traditional institutional boundaries. Issues involved when implementing Web 2.0 assessments are identified to highlight requisite areas for policy improvement in higher education, in particular for academic integrity, copyright and privacy policies

Book review : Hollywood's copyright wars : from Edison to the internet by Decherney, Peter

Exploration of landmark court cases and decisions in the copyright debate in the US, from Edison's attempts to extend to the fledgling film industry copyright law designed to protect photographs, to the Hollywood studios' responses to copyright breaches, and fair use exemptions granted to media educators and others since 2006.

The copyright wars

Forty minutes through my first body pump exercise class, I was panting, sweating and uncomfortable. Starved of calcium, my muscles were groaning. No ... that was me groaning, as I struggled through the final rep of a rotator cuff move with four-kilogram hand weights. As the class wore on, my execution of the choreographed movements that are integral to Body Pump got progressively more ragged. I was hurting.

Moral rights and Australian contemporary architecture : recent professional dilemmas and the thoughts of Peter Muller in this discourse

The moral rights of contemporary design projects has arisen as a difficult ethical dilemma in Australian architectural discourses, and is more complex when matters of heritage are implicated. This paper considers the position of moral rights under the AustralianCopyright Act 19682 having regard to the Australian exemplars of Peter Muller. Muller is one of the most highly regarded Australian architects of the twentieth century possessing a passion for organic architecture realised in several significant Australian and Indonesian design exemplars. The paper considers recent Australian debates about moral rights and projects that implicate several architectural and landscape architecture projects, the current legal interpretations, and explains the ideas, values, and opinions and practice of Muller in this context. A clear conclusion is that while the Act confers rights, there is no mechanism to ensure adherence to these rights, and particularly in the situation of a living designer where one of their designs is being accorded heritage status.

Spoken mathematics as an instructional strategy: the public discourse of mathematics classrooms in different countries

This chapter examines the use of spoken mathematics in the public discourse of eighth-grade mathematics classrooms internationally. By “spoken mathematics” we mean the recognizably mathematical terms used in spoken interaction in the classroom. Our principal focus was the relatively sophisticated terms by which each lesson’s central concepts or procedures were named. In our analysis we addressed the question(s): “What is the occurrence of publicly spoken mathematics in the different classrooms studied and what efforts do the teachers appear to make to promote students’ use of technical mathematical terms in their public classroom talk?” A companion chapter examines the question of students’ private spoken mathematics in the classroom and the possible learning that might result.

Uni has a different language … to the real world: demystifying academic culture and discourse for students from low socioeconomic backgrounds

The Australian government has set ambitious targets for increased higher-education participation of people from low socioeconomic backgrounds. There is, thus, a pressing need to explore how best to empower these students with what they require to progress and succeed at university. The paper draws on a literature review and qualitative data from a national study in which 89 students from low socioeconomic backgrounds and 26 staff were interviewed. The paper argues that demystifying academic culture and discourses for these students is a key step institutions and staff can take in assisting students from low socioeconomic backgrounds to progress and succeed at university. A recurring theme to emerge from both the literature and interviews with students and staff was that teaching the discourse empowers and enables students to learn, has a positive impact on their sense of belonging and ultimately helps them succeed in higher education.