CSCL: Structuring the Past, Present and Future Through Virtual Portfolios

Web-based processes of learning and collaboration produce an enlarged structural opportunity at many levels. Careful structuring of the virtual space supports and adds quality to both collaborative learning between students, and to instruction. Such enhancement in quality may take place through use of individual and collaborative spaces for learning activities, overview of process and content, increased clarity of learning expectations, and facilitation of collaborative and individual processes of reflection and self-reflection. This chapter investigates the structuring potential of a virtual version of portfolios for supporting these aspects. It discusses the conceptual and structural complexity associated with design and use of virtual portfolios from the perspective of, both learners and instructors, and on the basis of the design and use of virtual portfolios in a web-based American course on global change

Using an Open Software System (Sakai) to Develop Student Portfolios

E-portfolios are digital collections of artifacts that represent the achievements and reflections of individuals. They offer a unique view into student learning and allow educators and external accreditors to assess student progress towards established standards as well as reviewing their program’s performance in supporting that progress. Students benefit from assembling their e-portfolios through the process of reviewing their own work with a critical eye, choosing pieces of their work that best represent their abilities, and reflecting on the transformative nature of their University experience, both in class and through extra-curricular, service learning, internships and international activities. An e-portfolio provides a holistic view of a student’s personal growth and abilities that will serve them well in their career search or graduate school application. The challenge for an institution is to provide this learning and assessment resource in an accessible and affordable vehicle that is manageable for both faculty and students. Roger Williams University has crafted a strategy to utilize the Sakai open source course management system with its integrated e-portfolio tool set and a linked website to provide both e-portfolios and program assessment. This strategy will also be employed to propose a virtual accreditation of a professional program that will serve as a model throughout the University and the broader higher education community

Online Scientific Volunteering: the technological immersion for the co-construction of knowledge, employability, entrepreneurship and innovation in a logic of inclusion

“We all have something to learn and something to share” is the motto of this project, through which we aim to assess the impact of a multilingual platform which combines and makes the most of the potentials of digital environments and favours inclusion, in the co-construction of knowledge in learning/practice, in employability, entrepreneurism and innovation. In this article we will introduce an ongoing project which is founded on the principle of openness to the research community. Its philosophy is Online Scientific Volunteering for the co-construction of knowledge about learning best practices. The platform that will emerge from the project will be open access. The academic community, whether national or international, can contribute with content and knowledge to the platform, through interaction and discussions around relevant and emerging topics. The community may also exploit, without encumbrance, the contents of the platform for their own benefit. This way students and scientific expertise can share in a common knowledge space, and together build a comprehensive knowledge base.info:eu-repo/semantics/publishedVersio

(WP 2014-01) Is Bitcoin the \u27Paris Hilton\u27 of the Currency World? Or Are the Early Investors onto Something That Will Make Them Rich? [updated version]

The bitcoin phenomenon, and the technological innovation that made it possible, is interesting - but for investors large and small, the more pertinent question is whether they should buy the digital currency or avoid it. We analyze a bitcoin investment from the standpoint of an investor with a diversified portfolio using both in-sample and out-of-sample settings. Within the in-sample setting, bitcoin does not yield added value to investors with utility function consistent with the mean-variance setting. On the other hand, they do offer diversification benefits to investors with negative exponential and power utility functions. However, these benefits are not preserved in the out-of-sample framework. In most cases, the optimal portfolios that include only the traditional asset classes appear to have superior performance

Proteus: A Hierarchical Portfolio of Solvers and Transformations

In recent years, portfolio approaches to solving SAT problems and CSPs have become increasingly common. There are also a number of different encodings for representing CSPs as SAT instances. In this paper, we leverage advances in both SAT and CSP solving to present a novel hierarchical portfolio-based approach to CSP solving, which we call Proteus, that does not rely purely on CSP solvers. Instead, it may decide that it is best to encode a CSP problem instance into SAT, selecting an appropriate encoding and a corresponding SAT solver. Our experimental evaluation used an instance of Proteus that involved four CSP solvers, three SAT encodings, and six SAT solvers, evaluated on the most challenging problem instances from the CSP solver competitions, involving global and intensional constraints. We show that significant performance improvements can be achieved by Proteus obtained by exploiting alternative view-points and solvers for combinatorial problem-solving.Comment: 11th International Conference on Integration of AI and OR Techniques in Constraint Programming for Combinatorial Optimization Problems. The final publication is available at link.springer.co

The personal created through dialogue: enhancing possibilities through the use of new media

This paper explores the relationships between a number of different developments in higher education pedagogy, which are subsumed under the broad heading of progress files. The overall concern of the paper is to explore the ways in which personal reflection and learning is enhanced through dialogue. The paper explores the ways learners engage in dialogue in two environments that use different aspects of digital technologies to support the development of portfolios. The findings from the case studies point to the ways in which different technologies facilitated personal reflection mediated through sharing and dialogue. We develop the idea of affordances as a relationship whereby the learner is involved in a purposeful engagement with the possibilities created by their environment. The affordance of digitised technologies in supporting dialogue is, therefore, conceptualised in relation to the characteristics of the learner, not as a simple technology relation

Early childhood portfolios as a tool for enhancing learning during the transition to school

From 2005-2008 Mangere Bridge Kindergarten in New Zealand carried out a Centre of Innovation research project exploring the transition between early childhood education and school. A flexible action research approach was used, with the three teacher researchers, supported by two university research associates, developing and researching a range of strategies for supporting children’s learning as the children and their families ‘crossed the border’ from early childhood education to school. Many of these initiatives involved working closely with teachers in the local school setting. This paper focuses on one aspect of the findings, the ways in which the early childhood portfolios could be used to enhance children’s learning during the transition to school. Portfolios were identified as a belonging and empowerment tool; a means for school teachers to access to children’s funds of knowledge; playing a role in constructing a positive self-image about learning; and as valuable literacy artefacts