In this paper, we focus on the organization of activities that produce graphical representations on the shared whiteboard of a CSCL system with dual interaction spaces called VMT Chat, and the ways those representations are used as interactional resources by small groups during their collaborative math problem solving work. In particular, we will investigate how actions performed in one medium ...

It can be argued that although computer science may seem one of the best researched areas, it could also be one of the worst taught. In this research we examine the residual problems in traditional teaching methods, and how the same problems have re-occurred in web-based education. We cite the lack of a cognitive model for learning programming as the primary reason for this weakness, and discus...

objectives: the role of cognitive process for postural control was shown in dual task studies. however, there was no definite evidence how verbal instructions influence the allocation of attention to postural control. this study determined whether young and elderly adult are able to deliberately control the resource allocation when performing a sensorimotor and cognitive task simultaneously and...

background: the effect of coping strategies on modification of competitive anxiety and self-confidence is controversial. the purpose of this study was investigation of the role of coping strategies on competitive anxiety and self-confidence in individual and group athletes. methods: 700 group and individual athletes were selected from five counties of kermanshah province, western iran, applying...

mental rotation is the ability to imagine how an object will look if rotated away from the orientation in comparison with the one which is actually presented. that is a component of spatial abilities. this research aimed at comparing mental rotation ability in those with motor and cognitive experiences. the method of this research was causal-comparative and the sample was selected purposively. ...

A standard procedure for the evaluation of emergency impact is developed, concentrating on variation of the impact degree. A numerical method is presented in this paper. The concepts of impact depth and impact width are introduced to assess the impact degree, and both ofwhich determine the evolution path of impact. Based on the variation pattern of impact depth, the evolution path could be divi...

Although many talented researchers have created excellent tools for computer-assisted instruction and intelligent tutoring systems, creating high-quality, effective, scalable but individualized tools for learning at a low cost is still an open research challenge. Many learning tools create complex models of student behavior that require extensive time on the part of subject experts, as well as ...

To preoperatively assess the functional outcome of a total joint replacement, finite element analysis can be used for an objective evaluation of individual implant configurations. For large scale studies, where the implant configuration is varied in size, position or design, numerous finite element meshes have to be generated. To improve the planning process we propose a method that outputs a m...