Does skill specialisation influence individual differences in drag flicking speed and accuracy?

Research has revealed that individual soccer goalkeepers respond differently to penalty shots, depending on their specific perceptual and motor capabilities. However, it remains unclear whether analogous differences exist between individual penalty takers, and if specialising in penalty taking affects the occurrence of differences between individuals. The present study examined individual differences in penalty shot speed and accuracy for specialists in penalty taking versus non-specialists. Expert specialist field hockey drag flickers and equivalently skilled non-specialists performed drag flicks towards predetermined targets placed in the face of a standard field hockey goal. Comparisons in shot speed and accuracy were made at a group level (specialists vs. non-specialists) as well as between individuals. Results revealed differences in both speed and accuracy between specialists, but only differences in speed between non-specialists. Specialists generated significantly greater shot speed than non-specialists (P < .001) and were more accurate to some, but not all, targets (top left, P < .006, bottom left P < .001). In addition, it was found that in specialists increasing practice correlated with decreasing accuracy. This may indicate that excessive practice could potentially reduce a specialist’s accuracy in shooting towards specific targets.     

The effect of epistemic fidelity and accessibility on teaching with physical materials: A comparison of two models for teaching decimal numeration

Multi-base arithmetic blocks (MAB) are the most frequently used physical materials for teaching about decimal numbers, despite published reservations about their appropriateness. This paper presents an alternative, LAB (linear arithmetic blocks) and compares the two materials on the basis of epistemic fidelity and accessibility for students. Two teaching experiments involving 30 matched students indicated that LAB is considerably more accessible for students, and identify three contributing factors (LAB modeling number with length rather than volume, MAB incorporating an apparent dimensional shift and having prior use). Use of LAB was associated with more active engagement by students and deeper discussion. Epistemic fidelity is critical to facilitate teaching with the models, but we attribute the enhanced classroom environment to the greater accessibility of the LAB material. Further research is warranted, so that teaching of mathematics with physical materials can be improved. This revised version was published online in July 2006 with corrections to the Cover Date.     

Social Presence Online: Networking Learners at a Distance

This paper draws on two studies which researched the use of online small group environments where collaborative learning is a central structure for learning. The establishment of social presence is facilitated through the socio-affective aspect of small group interaction which contributed to the effectiveness of learning online. Social presence, the ability of online learners to project themselves into a textual environment which has few visual or contextual cues, will be explored as an important element in facilitating effective online learning. The teacher's role in helping students project their online social presence and in establishing an environment for learning within the larger group computer conference will also be discussed.     

Adopting Web‐Based Learning and Teaching: A case study in higher education

Most universities worldwide are becoming distance education providers through adopting web‐based learning and teaching via the introduction of learning management systems that enable them to open their courses to both on‐ and off‐campus students. Whether this is an effective introduction depends on factors that enable and impede the adoption of such systems and their related pedagogical strategies. This study examines such factors related to adopting a learning management system in a large multicampus urban Australian university. The research method used case study approaches and purposively selected the sample consisting of innovative teaching academics from across the university, who used web‐based approaches to teach both on‐ and off‐campus learners. The data were analyzed using a combination of Rogers’ theory of diffusion of innovations and actor‐network theory and revealed a series of enabling and impeding factors faced by pioneering technology‐adopter teaching academics, some of which are technology related while others are policy related and common to large multicampus institutions. The study found that safe adoption environments recognizing career priorities of academics are a result of the continuous negotiation between the evolving institution and its innovative and creative staff. The article concludes with a series of conditions that would form a safe, enabling, and encouraging environment for technology‐adopter teaching academics in a large multicampus higher education setting.     

The Embedded Lesson Approach to Social Media Research: Researching Online Phenomena in an Authentic Offline Setting

For American teenagers, social media participation has become a routine feature of everyday life, with ready access to their online networks via smartphones, tablets, and computers. Despite questions and concerns about its effects, relatively few educational researchers have qualitatively explored how students use social media. Complexities such as parental consent, unintended access to non-consented peers, and privacy rights may be deterrents to this research. In this paper, we describe our embedded lesson approach to studying teenagers’ social media use in a high school setting. We designed and delivered three consecutive lessons about social media to two classes. Embedded within these lessons were opportunities to collect data via surveys, focus groups, and observations, along with member checking as a form of quality assurance. This approach rapidly yielded a rich data set, while also giving students the opportunity to articulate and reflect on their social media activities and experiences.     

Understanding and representing changing work structures and practices through art

Courses: Organizational Communication, Advanced Organizational Communication, Organizing Work, Management/Organizational History

Objectives: This activity will help students to understand major shifts in the organization of work and creatively represent changing work structures and practices.