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This article presents the outcomes of a pilot study investigating factors that supported and constrained collaborative learning in a blended reality environment. Pre-service teachers at an Australian university took part in a hybrid tutorial lesson involving a mixture of students who were co-located in the same face-to-face (F2F) classroom along with others who were participating remotely via their avatars in a three-dimensional virtual world. Video and sound recording equipment captured activity in the classroom, which was streamed live into the virtual world so the remote participants could see and hear their instructor and F2F peers; the in-world activity was also simultaneously displayed on a projector screen, with the audio broadcast via speakers, for the benefit of the F2F participants. While technical issues constrained communication and learning in some instances, the majority of remote and F2F participants felt the blended reality environment supported effective communication, collaboration and co-presence. Qualitative analysis of participant evaluations revealed a number of pedagogical, technological and logistical factors that supported and constrained learning. The article concludes with a detailed discussion of present and future implications of blended reality collaborative environments for learning and teaching as well as recommendations for educators looking to design and deliver their own blended reality lessons.

Blended synchronous learning involves using rich-media technologies to enable remote and face-to-face students to jointly participate in the same live classes. This article presents blended synchronous learning designs from seven case studies that were part of a project funded by the Australian Government Office for Learning and Teaching and articulates principles for implementation as espoused by the teachers who enacted them. A wide range of technologies (including video conferencing, web conferencing and virtual worlds), tasks (namely collaborative evaluation, group questioning, class discussion, problem solving and collaborative design) and levels of student interaction (from lightweight to tightly coupled) were present within the designs. The main issues that teachers confronted when facilitating blended synchronous lessons were those relating to communication and those relating to cognitive overload caused by split attention. Key pedagogical principles for enactment as identified by the lead teachers included the need for extensive preparation, clear instructions, composure, flexibility, advance preparation of students and savvy utilisation of support staff.

Discovery-based learning designs incorporating active exploration are common within instructional software. However, researchers have highlighted empirical evidence showing that "pure" discovery learning is of limited value and strategies which reduce complexity and provide guidance to learners are important if potential learning benefits are to be achieved. One approach to reducing complexity in discovery learning is limiting the range of possible actions for the learner to ensure that they do not undertake exploratory activities leading to confusion. This article reports on a study in which the learning outcomes from two learning conditions using computer-based simulations were compared. One condition allowed exploration through manipulation of simulation parameters, while the other allowed observation of simulation output from preset parameters, the latter condition designed to limit the complexity of the task. Learning outcomes for the 158 university student participants were assessed via pre-tests and post-tests of conceptual understanding. Students' exploration activities were recorded and their strategies subsequently coded as either systematic or unsystematic. The results showed that when compared with observation, systematic exploration resulted in learning benefits, while unsystematic exploration did not. These results have implications for the design of discovery learning tasks and instructional guidance within computer-based simulations.

This article describes the research design of, and reports selected findings from, a scoping study aimed at examining current and planned applications of 3D immersive virtual worlds at higher education institutions across Australia and New Zealand. The scoping study is the first of its kind in the region, intended to parallel and complement a number of studies conducted in other parts of the world. Results from a sector-wide questionnaire administered as part of the scoping study, portions of which are presented in this article, appear consistent with international trends, especially in terms of the platforms chosen and the dramatic increase in usage seen in recent years. Higher education teaching staff in Australia and New Zealand are using 3D immersive virtual worlds with their students in a variety of ways, for both assessable and non-assessable tasks and in face to face, fully online/distance as well as blended-mode subjects, although use in face to face and blended contexts appears to be most common. The results also provide some insight into the demographics (e.g. age) of staff who have adopted 3D immersive virtual worlds in their teaching, as well as into the academic disciplines in which the technology is being employed. (Contains 6 figures.)

This paper reviews existing methods used to address questions about interactivity, cognition and learning in multimedia learning environments. Existing behavioural and self-report methods identified include observations, audit trails, questionnaires, interviews, video-stimulated recall, and think-aloud protocols. The limitations of these methods are examined, highlighting the problems with using behavioural information to speculate about the cognitive activity that is occurring; the difficulties posed by relying on the correct interpretation of questions or accurate recall of past events; and the potential for the data collection methods to have an impact on cognition as it is occurring. Functional brain imaging techniques offer a complement to the existing methods, but possess a number of inherent methodological constraints. The specific constraints emerging from a recent pilot study carried out by the authors are discussed in detail, including: limitations on learner-computer interaction because of the need to use MRI compatible input devices; activation from motor tasks potentially confounding the results of comparisons between cognition occurring during interactive and non-interactive resources; visual differences between multimedia conditions potentially confounding the results due to activation associated with the visual processing; and problems with the provision of "baseline" or "rest" conditions for comparison purposes during holistic problem-based tasks. Despite these constraints it is argued that the use of functional imaging techniques within this field of research has significant potential. (Contains 4 figures.)

This article explores the potential learning benefits of three-dimensional (3-D) virtual learning environments (VLEs). Drawing on published research spanning two decades, it identifies a set of unique characteristics of 3-D VLEs, which includes aspects of their representational fidelity and aspects of the learner-computer interactivity they facilitate. A review of applications of 3-D VLEs is presented, leading to the identification of a series of learning affordances of such environments. These affordances include the facilitation of tasks that lead to enhanced spatial knowledge representation, greater opportunities for experiential learning, increased motivation/engagement, improved contextualisation of learning and richer/more effective collaborative learning as compared to tasks made possible by 2-D alternatives. The authors contend that the continued development of and investment in 3-D games, simulations and virtual worlds for educational purposes should be considered contingent on further investigation into the precise relationships between the unique characteristics of 3-D VLEs and their potential learning benefits. To this end, they conclude by proposing an agenda or "roadmap" for future research that encompasses empirical studies aimed at exploring these relationships, as well as those aimed at deriving principles and guidelines to inform the design, development and use of 3-D virtual environments for learning.

This paper describes two empirical studies which investigated the importance for spatial learning of view control and object manipulation within 3D environments. A 3D virtual chemistry laboratory was used as the research instrument. Subjects, who were university undergraduate students (34 in the first study and 80 in the second study), undertook tasks in the virtual laboratory and were tested on their spatial knowledge through written tests. The results of the study indicate that view control and object manipulation enhance spatial learning but only if the learner undertakes authentic tasks that require this learning. These results have implications for educational designers making a choice between video or animation and interactive 3D technologies. The results are discussed within the framework of Piaget's theories on active learning and Gibson's ecological theory of perception and action. (Contains 3 tables and 4 figures.)