11 research outputs found
Studentsâ Perceptions of Learning Processes as Co-Authors of Digital Tabletop Activities
We conducted a small-scale study in order to explore studentsâ perceptions of the learning processes when engaged as co-authors of content for collaborative higher order thinking skills learning tasks. We specifically designed the process to allow for self-critique â where authors can observe their creations being solved and therefore understand where they may improve their design. We collected data over a three-day period from a sample of twelve thirteen year olds, working in teams, authoring content for Digital Mysteries (a higher order thinking skills collaborative learning application based on the digital tabletop). The study was structured to follow Bloomâs taxonomy, a continuum of cognitive skills that develop during a learning process. We found that 1) rather than follow this continuum, skills developed in a non-linear manner due to the abstract nature of the authoring activity, and 2) the studentsâ demonstrated good metacognitive insights into the authoring task, technology and collaborative learning as a whole
The TA Framework: Designing Real-time Teaching Augmentation for K-12 Classrooms
Recently, the HCI community has seen increased interest in the design of
teaching augmentation (TA): tools that extend and complement teachers'
pedagogical abilities during ongoing classroom activities. Examples of TA
systems are emerging across multiple disciplines, taking various forms: e.g.,
ambient displays, wearables, or learning analytics dashboards. However, these
diverse examples have not been analyzed together to derive more fundamental
insights into the design of teaching augmentation. Addressing this opportunity,
we broadly synthesize existing cases to propose the TA framework. Our framework
specifies a rich design space in five dimensions, to support the design and
analysis of teaching augmentation. We contextualize the framework using
existing designs cases, to surface underlying design trade-offs: for example,
balancing actionability of presented information with teachers' needs for
professional autonomy, or balancing unobtrusiveness with informativeness in the
design of TA systems. Applying the TA framework, we identify opportunities for
future research and design.Comment: to be published in Proceedings of the 2020 CHI Conference on Human
Factors in Computing Systems, 17 pages, 10 figure
Estudio experimental sobre el comportamiento tĂ©rmico de un nuevo tipo de techo-estanque para el enfriamiento pasivo en clima hĂșmedo
En este trabajo, una nueva tipologĂa de techo-estanque metĂĄlico, basado en el enfriamiento evaporativo indirecto, que incluye masa tĂ©rmica confinada, se evalĂșa experimentalmente. Cinco sistemas de enfriamiento pasivo se han estudiado con este dispositivo experimental. Se analizan sus temperaturas caracterĂsticas con el propĂłsito de determinar en cada caso, su potencial de enfriamiento, asĂ como, la influencia de la masa tĂ©rmica en su comportamiento tĂ©rmico. Entre las tĂ©cnicas de enfriamiento pasivo aplicadas se encuentran el enfriamiento evaporativo indirecto (EEI) y el enfriamiento radiativo nocturno (ER). El sistema donde se combina masa tĂ©rmica con enfriamiento evaporativo indirecto en el dispositivo experimental presenta una elevada eficiencia de enfriamiento; su valor aumenta a medida que las condiciones son mĂĄs extremas. Un potencial de enfriamiento aun mayor se consigue al agregar al sistema anterior enfriamiento radiativo
The Effect of Urban Form on the Heat Island Phenomenon and Human Thermal Comfort: A Comparative Study of UAE Residential Sites
The Urban Heat Island (UHI) has a detrimental impact on human thermal comfort and the health of city dwellers through raising average temperatures. Urban geometry is one of the factors that affect the intensity of the UHI phenomena. The purpose of this research is to evaluate and compare traditional vs. modern urban forms with respect to temperature and thermal comfort in the United Arab Emirates. Three of each were chosen based on their densities and form. Traditional buildings in the UAE differ from others in the Middle East in that they are primarily single-story, while in the surrounding countries of the region, such as Iran, Iraq, and Saudi Arabia, they are mainly two stories. The UAE climate also has its distinct characteristics. Each configuration was investigated using the ENVI-met urban microclimate simulation software. The comparisons were made for three seasons: summer, winter, and spring. Each configuration was evaluated through four parameters: building shape, street geometry, orientation, and urban density. The results revealed that the low-density traditional urban form exhibited the lowest air temperature in August because it has a low sky view factor (SVF), high height-to-width ratio, and less density. The highest ambient temperature was observed in the sites with low-medium density, lowest height/width ratio, and maximum SVF. The high-density modern urban form displayed lower air temperatures in the summer season than the low and low-medium-density modern urban sites due to the building form, high height-to-width ratio, low SVF, and wind corridors. The traditional compact urban form in Al Fahidi, which has the highest urban density of the six configurations, achieved the best thermal comfort levels in the summer due to the sizable height-to-width ratio and lowest SVF