Chang, Chew Hung

The personalized project space is an important feature in G-Portal that supports individual and group learning activities. Within such a space, its owner can create, delete, and organize metadata referencing learning objects on the Web. Browsing and querying are among the functions provided to access the metadata. In addition, new schemas can be added to accommodate metadata of diverse attribute sets. Users can also easily share metadata across different projects using a “copy-and-paste” approach. Finally, a viewer to support offline viewing of personalized project content is also provided.

For many years learning management systems have been focused on providing resources for students. More recently, the growth of digital repositories has provided resources that can be tagged and searched independently of a course structure. G-portal provides resources specifically tagged for geographical learning tasks and provides a project space in which students can collaborate, create resources and share these resources amongst themselves. This paper reviews the research issues surrounding G-portal using activity theory as a framework and defines a research agenda based on the capabilities of G-portal. In particular, issues of information organisation, issues of usability, search strategies and retrieval techniques, multimodality of representation, transduction of information and representation of geographic and spatial information will be examined. The research agenda focuses on three areas: information organisation and representation; the capabilities of the G-Portal application and its ability to integrate and retrieve information and geographical task; and the ease with which students are able to undertake and complete learning tasks about geographical phenomena.

Environmental identity or how we orient ourselves to the natural world, leads us to personalize abstract global issues and take action (or not) according to our sense of who we are. Indeed, the often emotional nature of environmental conflicts can be associated with our sense of personal and social identity. Are we willing to give up our SUV for a more fuel-efficient car albeit our knowledge about the enhanced greenhouse effect? (Clayton and Opotow, 2003). In an era where web-based student-centred inquiry is gaining popularity as a mode of teaching and learning about environmental issues and potentially developing students’ environmental identities, the role of digital libraries as delivery trucks (terminology by Clark, 1983) needs to be understood better. An obvious affordance of such a digital library is that it organizes information around themes for problems to be solved. A developmental project to build a first digital library for Geographical assets was undertaken. This digital library (G-Portal) serves an active role in a collaborative learning activity in which the students conduct a field study of an environmental problem, within a geospatial context – in this case, beach erosion and sea level rise. G-Portal not only functions as a digital library of information resources, it also provides manipulation and analytical tools that can be used on the information provided. The concept of personal project space allows individuals to work in their personalized environment with a mix of private and public data and at the same time share part of the data with their team members. This allows students to explore the information, process the information, solve the problem posed and perhaps even form new understandings and reflections of their role in the natural environment.

Adopting a problem-centred approach helps students to learn Geography more effectively as they are able to identify and generalize about where different resources or activities are spatially located and they learn to associate certain patterns and processes with geographical changes. In an era where web-based student-centred inquiry is gaining popularity as a mode of learning Geography, the role of digital libraries as delivery trucks (in Clark’s terminology, 1983) needs to be better understood. An obvious affordance of the digital library is that it organizes information around themes for problems to be solved. This paper describes a developmental project to build a digital library for Geographical assets. This digital library (G-Portal) serves an active role in collaborative learning activity in which students conduct a field study of an environmental problem, within a geospatial context – in this case, beach erosion and sea level rise. G-Portal not only functions as a digital library of information resources, it also provides manipulation and analytical tools that can operate on the information provided. This study examined two specific case studies as part of a larger study which explored the possible the ways the students can use the G-portal find information, create learning artefacts, construct arguments and explore their awarness of the modality of information sources and in the learning artefacts they created. G-portal was sucessful in providing resources which supported the students in finding information and supporting multimodality in the construction their artefacts.

Students learn Geographical concepts more effectively if they can identify and generalize about where different resources or activities are spatially located and when they associate certain patterns and processes with geographical changes. Digital libraries can be used to support web-based student-centred inquiry as a mode of learning Geography. This study explores the affordances of a geographical digital repository (the G-Portal) which organizes information around problem tasks. Two phases of the project were to build a digital library for Geographical assets and to develop a place-name assignment algorithm which automatically determines the names of places embedded in web pages referenced by these assets so as to augment them with the appropriate location semantics. This G-Portal digital library serves an active role in collaborative learning activities in which students conduct a virtual field study of an environmental problem, within a geospatial context – in this case, beach erosion and sea level rise. GPortal also provides manipulation and analytical tools that can operate on the information retrieved.

This paper describes G-Portal, a geospatial digital library of geographical assets, providing an interactive platform to engage students in active manipulation and analysis of information resources and collaborative learning activities. Using a G-Portal application in which students conducted a field study of an environmental problem of beach erosion and sea level rise, we describe a pilot study to evaluate usefulness and usability issues to support the learning of geographical concepts, and in turn teaching.

Digital libraries have been rather successful in supporting learning activities by providing learners with access to information and knowledge. However, this level of support is passive to learners and interactive and collaborative learning cannot be easily achieved. In this paper, we study how digital libraries could be extended to serve a more active role in collaborative learning activities. We focus on developing new services to support a common type of learning activity, field study, in a geospatial context. We propose the concept of personal project space that allows individuals to work in their personalized environment with a mix of private and public data and at the same time to share part of the data with team members. To support the portability of the resources in our digital library, the selected resources can be exported in an organized manner.