7,756 research outputs found

    Technology training in preservice education programs : a review of the literature

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    Education is radically changing with the dawn of the information age, where the ability to access, analyze, and manipulate information is a basic survival skill. To become more technologically adept, elementary and secondary schools must provide technical training to their students. However, trained students are the result of trained professionals. Recognizing the burgeoning need to provide skilled professionals, institutions of teacher education are integrating educational technology programs in preservice education. This review of the literature reports on technology implementation at teacher training institutions where educational technology is being infused into the preservice curriculum through adherence to guidelines from ISTE and NCATE. Course content consisting primarily of computer and media is taught by faculty who must overcome barriers to their technical illiteracy. Best practice models of technology integration are formed by student-centered learning situations that involve constructivism and collaboration

    VISIR: experiences and challenges

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    It is of crucial importance the integration of practical sessions in engineering curricula owing to their significant role in understanding engineering concepts and scientific phenomena. However, the lack of practical sessions due to the high costs of the equipment and the unavailability of instructors has caused a significant declination in experimentation in engineering education. Remote laboratories have tackled this issues providing online reusable and shared workbenches unconstrained by neither geographical nor time considerations. Thereby, they have extremely proliferated among universities and integrated into engineering curricula over the last decade. This contribution compiles diverse experiences based on the deployment of the remote laboratory, Virtual Instrument Systems in Reality (VISIR), on the practices of undergraduate engineering grades at various universities within the VISIR community. It aims to show the impact of its usage on engineering education concerning the assessments of students and teachers as well. In addition, the paper address the next challenges and future works carried out at several universities within the VISIR community

    Fast parallel volume visualization on cuda technology

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    In the medical diagnosis and treatment planning, radiologists and surgeons rely heavily on the slices produced by medical imaging scanners. Unfortunately, most of these scanners can only produce two dimensional images because the machines that can produce three dimensional are very expensive. The two dimensional images from these devices are difficult to interpret because they only show cross-sectional views of the human structure. Consequently, such circumstances require highly qualified doctors to use their expertise in the interpretation of the possible location, size or shape of the abnormalities especially for large datasets of enormous amount of slices. Previously, the concept of reconstructing two dimensional images to three dimensional was introduced. However, such reconstruction model requires high performance computation, may either be time-consuming or costly. Furthermore, detecting the internal features of human anatomical structure, such as the imaging of the blood vessels, is still an open topic in the computer-aided diagnosis of disorders and pathologies. This study proposed, designed and implemented a visualization framework named SurLens with high performance computing using Compute Unified Device Architecture (CUDA), augmenting the widely proven ray casting technique in terms of superior qualities of images but with slow speed. Considering the rapid development of technology in the medical community, our framework is implemented on Microsoft .NET environment for easy interoperability with other emerging revolutionary tools. The Visualization System was evaluated with brain datasets from the department of Surgery, University of North Carolina, United States, containing 109 datasets of MRA, T1-FLASH, T2-Weighted, DTI and T1-MPRAGE. Significantly, at a reasonably cheaper cost, SurLens Visualization System achieves immediate reconstruction and obvious mappings of the internal features of the human brain, reliable enough for instantaneously locate possible blockages in the brain blood vessels without any prior segmentation of the datasets

    Learning objects and learning designs: an integrated system for reusable, adaptive and shareable learning content

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    This paper proposes a system, the Smart Learning Design Framework, designed to support the development of pedagogically sound learning material within an integrated, platform-independent data structure. The system supports sharing, reuse and adaptation of learning material via a metadata-driven philosophy that enables the technicalities of the system to be imperceptible to the author and consumer. The system proposes the use of pedagogically focused metadata to support and guide the author and to adapt and deliver the content to the targeted consumer. A prototype of the proposed system, which provides proof of concept for the novel processes involved, has been developed. The paper describes the Smart Learning Design Framework and places it within the context of alternative learning object models and frameworks to highlight similarities, differences and advantages of the proposed system

    Toward a Semiotic Framework for Using Technology in Mathematics Education: The Case of Learning 3D Geometry

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    This paper proposes and examines a semiotic framework to inform the use of technology in mathematics education. Semiotics asserts that all cognition is irreducibly triadic, of the nature of a sign, fallible, and thoroughly immersed in a continuing process of interpretation (Halton, 1992). Mathematical meaning-making or meaningful knowledge construction is a continuing process of interpretation within multiple semiotic resources including typological, topological, and social-actional resources. Based on this semiotic framework, an application named VRMath has been developed to facilitate the learning of 3D geometry. VRMath utilises innovative virtual reality (VR) technology and integrates many semiotic resources to form a virtual reality learning environment (VRLE) as well as a mathematical microworld (Edwards, 1995) for learning 3D geometry. The semiotic framework and VRMath are both now being evaluated and will be re-examined continuously

    Technology\u27s impact on student learning in grades K-8

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    Many research studies have found that educational technology that is accessible, equitable, and properly used can make a significant difference in students\u27 academic performance. The purpose of this study was to determine if Wildwood Crest Memorial School had a well-orchestrated technology plan, which addressed the technological needs of students and teachers and to determine what impact technology had on student learning. A survey developed by the Southeast and Islands Regional Technology in Education Consortium (SEIR*TEC) was used to collect data from students and teachers. An analysis of the data found that the district goals and objectives were being met with the integration of technology into the curriculum and instruction. Technology as a tool was used to stimulate higher order thinking and problem-solving skills. Students\u27 mastery of academic content improved significantly utilizing collaborative and globalized learning and, as such, accelerated, enriched, and deepened students\u27 understanding of the curriculum
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