Dandelion Diagram: Aggregating Positioning and Orientation Data in the Visualization of Classroom Proxemics

In the past two years, an emerging body of HCI work has been focused on classroom proxemics - how teachers divide time and attention over students in the different regions of the classroom. Tracking and visualizing this implicit yet relevant dimension of teaching can benefit both research and teacher professionalization. Prior work has proved the value of depicting teachers' whereabouts. Yet a major opportunity remains in the design of new, synthesized visualizations that help researchers and practitioners to gain more insights in the vast tracking data. We present Dandelion Diagram, a synthesized heatmap technique that combines both teachers' positioning and orientation (heading) data, and affords richer representations in addition to whereabouts - For example, teachers' attention pattern (which directions they were attending to), and their mobility pattern (i.e., trajectories in the classroom). Utilizing various classroom data from a field study, this paper illustrates the design and utility of Dandelion Diagram.Comment: To be published in CHI'20 Extended Abstracts (April 25-30, 2020), 8 pages, 4 figure

Seeing learning analytics tools as orchestration technologies: Towards supporting learning activities across physical and digital spaces

© Copyright 2016 for this paper by its authors. This panel paper proposes to consider the process that learners or educators commonly follow while interacting with learning analytics tools as part of an orchestration loop. This may be particularly valuable to facilitate understanding of the key role that learning analytics may have to provide sustained support to learners and educators. The complexity of learning situations where learning occurs across varied physical spaces and multiple educational tools are involved requires a holistic and practical approach. The proposal is to build on principles of orchestration that can help link technical and theoretical aspects of learning analytics with the practitioner. The panel paper provides: 1) a brief description of the relevance of the notions of orchestration and orchestrable technologies for learning analytics; and 2) the illustration of the orchestration loop as a process followed by learners or educators when they use learning analytics tools

Analysing, visualising and supporting collaborative learning using interactive tabletops

The key contribution of this thesis is a novel approach to design, implement and evaluate the conceptual and technological infrastructure that captures student’s activity at interactive tabletops and analyses these data through Interaction Data Analytics techniques to provide support to teachers by enhancing their awareness of student’s collaboration. To achieve the above, this thesis presents a series of carefully designed user studies to understand how to capture, analyse and distil indicators of collaborative learning. We perform this in three steps: the exploration of the feasibility of the approach, the construction of a novel solution and the execution of the conceptual proposal, both under controlled conditions and in the wild. A total of eight datasets were analysed for the studies that are described in this thesis. This work pioneered in a number of areas including the application of data mining techniques to study collaboration at the tabletop, a plug-in solution to add user-identification to a regular tabletop using a depth sensor and the first multi-tabletop classroom used to run authentic collaborative activities associated with the curricula. In summary, while the mechanisms, interfaces and studies presented in this thesis were mostly explored in the context of interactive tabletops, the findings are likely to be relevant to other forms of groupware and learning scenarios that can be implemented in real classrooms. Through the mechanisms, the studies conducted and our conceptual framework this thesis provides an important research foundation for the ways in which interactive tabletops, along with data mining and visualisation techniques, can be used to provide support to improve teacher’s understanding about student’s collaboration and learning in small groups

Measuring the Effects of Interpersonal Training for the Workforce

This study assesses the cumulative effect of a training curriculum focused on teamwork, which was delivered to technical employees in a multinational organization. Employees were given a 10-item survey prior to the training and four months after the survey. Several aspects of the literature were incorporated into the design of the curriculum and analysis of the results: content was tailored toward the employees’ environment, management was asked to promote the training to contribute to a positive climate, and assessment was deferred by four months to maximize the chance that employees might implement the lessons from the training into practice. The results for the 10-item survey show a significant pre- and post-training difference, and implications and findings are discussed and reconciled with the literature

PRÓTESIS PARCIAL REMOVIBLE Y TOTAL II

GUÍA DE EVALUACIÓN DEL APRENDIZAJ

Designing OLMs for reflection about group brainstorming at interactive tabletops

Brainstorming is a valuable and widely-used group technique to enhance creativity. Interactive tabletops have the potential to support brainstorming and, by exploiting learners' trace data, they can provide Open Learner Models (OLMs) to support reflection on a brainstorming session. We describe our design of such OLMs to enable an individual to answer core questions: C1) how much did I contribute? C2) at what times was the group or an individual stuck? and C3) where did group members seem to 'spark' off each other? We conducted 24 brainstorming sessions and analysed them to create core brainstorming models underlying the OLMs. We evaluated the OLMs in a think-aloud study designed to see whether learners could interpret the OLMs to answer the core questions. Results indicate the OLMs were effective and that it is valuable, that learners benefit from guidance in their reflection and from drawing on an example of an excellent group's OLM. Our contributions are: i) the first OLMs supporting reflection on brainstorming; ii) models of brainstorming that underlie the OLMs; and iii) a user study demonstrating that learners can use the OLMs to answer the core reflection questions

A student-facing dashboard for supporting sensemaking about the brainstorm process at a multi-surface space

© 2017 Association for Computing Machinery. All rights reserved. We developed a student-facing dashboard tuned to support posthoc sensemaking in terms of participation and group effects in the context of collocated brainstorming. Grounding on foundations of small-group collaboration, open learner modelling and brainstorming at large interactive displays, we designed a set of models from behavioural data that can be visually presented to students. We validated the effectiveness of our dashboard in provoking group reflection by addressing two questions: (1) What do group members gain from studying measures of egalitarian contribution? and (2) What do group members gain from modelling how they sparked ideas off each other? We report on outcomes from a study with higher education students performing brainstorming. We present evidence from i) descriptive quantitative usage patterns; and ii) qualitative experiential descriptions reported by the students. We conclude the paper with a discussion that can be useful for the community in the design of collective reflection systems

Inversión Crecimiento y Desarrollo de la Económia de Nicaragua : Opciones de financiamiento de las MYPYMES en el sector textil del dstrito VI de Managua 2012-2015

El presente trabajo de investigación pretendió analizar y precisar las cantidades adecuadas de financiamiento requeridas por las Micro, Pequeñas y Medianas Empresas (MIPYMES), según las condiciones económicas del país. Los resultados indican que las MIPYMES se encuentran restringidas financieramente, y que ni las Instituciones Micro-financieras, ni el Sistema Bancario formal constituyen fuentes adecuadas de financiamiento. La importancia de las MIPYMES en Nicaragua es que representa la mayoría de las empresas nicaragüenses, convirtiéndose en generadoras de empleos y cuentan con gran flexibilidad en sus procesos productivos. Debido al impacto económico y social que tienen las MIPYMES en el sector empresarial y en la economía nacional es necesario un apoyo más directo del gobierno, tal como se ha venido ejecutando a través de diferentes programas que se impulsan como: “HAMBRE CERO” en el caso rural y los créditos otorgados por USURA CERO. Las MIPYMES se han convertido en una alternativa de desarrollo en la economía nacional y en la reducción de pobreza. A pesar de los obstáculos financieros que enfrentan por ser empresas pequeñas, han mejorado su mecanismo de trabajo. Las MIPYMES no son un fenómeno reciente, éstas han pasado por diferentes dificultades hasta el punto de tener conflicto con las grandes empresas. Desde el 2009 las MIPYMES han venido desarrollándose y creciendo cada vez más logrando un crecimiento económico de 5% anual y aportan al producto interno bruto entre el 35 y 40%. Las MIPYMES representan el 87.45% (106,619) del total de empresas que existen en Nicaragua. Nicaragua, ha demostrado ser el país que más desarrollo ha tenido en Centro América en los últimos cincos años, con mayor presencia en el comercio nacional y la incursión que realiza en el mercado internacional. Las MIPYMES tienen menor probabilidad de usar financiamiento bancario y otras fuentes de recursos externos. Mientras que el 30 por ciento de las grandes empresas usan financiamiento bancario para nuevas inversiones, sólo el 12 por ciento de las pequeñas empresas lo hacen. Entre las debilidades de la MIPYMES en este sector del Distrito VI de Managua son: las faltas de financiamiento, carecen de tecnología, altos costos de producción. Por otro lado el financiamiento de crédito por una micro financiero es muy caro y ha sido uno de los principales tropiezos que ha tenido dicho sector. Operan con capital privado, estos talleres no pasan a veces de ser una casa-taller, donde trabajan las mujeres de una familia. En algunas ocasiones reúnen hasta 25 empleadas. Se contrata a estas mujeres para hacer parte de un trabajo mayor que se hace en la maquiladora. En Managua, los rótulos que anuncian "maquilados y confecciones", indican la ubicación de estos talleres. Esto implica que las MIPYMES pierden el potencial de transformarse en grandes empresas, con su consiguiente impacto en el desarrollo y empleo. Es decir, las fallas institucionales y de mercado (restricción de financiamiento) crean un entorno competitivo desigual entre empresas de diferente tamaño. Uno de los factores de éxito de los pequeños negocios en Nicaragua es el acceso al capital, el acceso al financiamiento resulta decisivo a la hora de poner en marcha o expandir una pequeña o mediana empresa. El problemas de los prestamos está atado a garantías hipotecarias y líquidas y no todas las MIPYMES tienen los documentos de sus propiedad además que por ser una economía de pequeña o mediana empresa no todas las personas tiene acceso al financiamiento, porque también tienen bajos ingresos, también las empresas tiene escasez de activos y por esos se limitan a realizar un préstamo