Nonlinear Learning Underpinning Pedagogy: Evidence,Challenges, and Implications

This article provides a brief overview of the framework of nonlinear pedagogy and evidence emanating from motor learning literature that underpins a nonlinear pedagogical approach. In addition, challenges for nonlinear pedagogy and a discussion on how nonlinear pedagogy support the work of physical education (PE) teachers will be shared. Evidence from the increasing volume of work on nonlinear learning from motor learning literature is used to suggest how acquisition of movement skills is supported by nonlinearity. The emergence of goal-directed behaviors is a consequence of the performer, environmental, and task constraints. With a nonlinear pedagogy approach, the focus is on the individual learner where opportunities for meaningful actions can be learnt. Design principles based on representativeness, focus of attention, functional variability, manipulation of constraints, and ensuring relevant information-movement couplings can be delivered via pedagogical channels of instructions, practices, and feedback to the learners. Importantly, this focus on the individual sets the foundation for a developing nonlinear pedagogy framework to enhance teaching in PE although the challenges are non-trivial.     

Use of deterministic models in sports and exercise biomechanics research

A deterministic model is a modeling paradigm that determines the relationships between a movement outcome measure and the biomechanical factors that produce such a measure. This review provides an overview of the use of deterministic models in biomechanics research, a historical summary of this research, and an analysis of the advantages and disadvantages of using deterministic models. The deterministic model approach has been utilized in technique analysis over the last three decades, especially in swimming, athletics field events, and gymnastics. In addition to their applications in sports and exercise biomechanics, deterministic models have been applied successfully in research on selected motor skills. The advantage of the deterministic model approach is that it helps to avoid selecting performance or injury variables arbitrarily and to provide the necessary theoretical basis for examining the relative importance of various factors that influence the outcome of a movement task. Several disadvantages of deterministic models, such as the use of subjective measures for the performance outcome, were discussed. It is recommended that exercise and sports biomechanics scholars should consider using deterministic models to help identify meaningful dependent variables in their studies.     

Effects of different exercise intensities with isoenergetic expenditures on C-reactive protein and blood lipid levels

We investigated the effects of different exercise intensities on C-reactive protein (CRP), and whether changes in CRP levels correlated with blood lipid levels. Ten men exercised at 25%, 65%, and 85% of their maximum oxygen consumption rates. Participants' blood was analyzed for CRP and blood lipid levels before and after the exercise sessions. Although there was an intensity effect for postexercise high-density lipoprotein levels, there were no significant differences or correlations for postexercise CRP levels or between CRP and lipid levels across the three exercise intensities. In an acute aerobic bout model with isoenergetic expenditures, CRP was not affected by the exercise intensity. Additionally, changes in blood lipid levels might not have been connected to CIRP levels for physically fit participants.     

Stressors, anxiety, acculturation and adjustment among international and North American students

The acculturation process generally contributes greatly to stress and anxiety levels among international students. The objectives of the present study were: (1) to see whether international students experience more anxiety, irritability, and stress from being apart from family and friends, pressure from school, difficulties with language, work and finances than students with permanent US residency, and (2) to investigate the same stressors in groups within the international student population. Surveys were distributed to 246 students aged 17–51 at an ethnically diverse community college in Southern California, US. Analysis of variance was conducted to investigate group differences between students: permanent US residents vs. international students, and, permanent US residents vs. European and Asian students, respectively. No significant differences were found between international students and students with permanent US residency. However, when the international student population was sub-grouped by above cultural regions a different pattern emerged. Difficulties of not being able to work and of socially related problems were perceived as more severe for the European and the Asian groups, while finance problems were hard for all three groups. The variable of language difficulties was harder for Asian students, while that of stress of being apart from family was harder for students from Europe. Findings are not only congruent with prior research results on international students but also demonstrate that international students with culturally diverse needs should not be considered as one homogenous group. It is suggested that educational systems need to properly adapt in order to accommodate international students’ unique cultural needs.     

Teachable Agents and the Protégé Effect: Increasing the Effort Towards Learning

Betty’s Brain is a computer-based learning environment that capitalizes on the social aspects of learning. In Betty’s Brain, students instruct a character called a Teachable Agent (TA) which can reason based on how it is taught. Two studies demonstrate the protégé effect: students make greater effort to learn for their TAs than they do for themselves. The first study involved 8th-grade students learning biology. Although all students worked with the same Betty’s Brain software, students in the TA condition believed they were teaching their TAs, while in another condition, they believed they were learning for themselves. TA students spent more time on learning activities (e.g., reading) and also learned more. These beneficial effects were most pronounced for lower achieving children. The second study used a verbal protocol with 5th-grade students to determine the possible causes of the protégé effect. As before, students learned either for their TAs or for themselves. Like study 1, students in the TA condition spent more time on learning activities. These children treated their TAs socially by attributing mental states and responsibility to them. They were also more likely to acknowledge errors by displaying negative affect and making attributions for the causes of failures. Perhaps having a TA invokes a sense of responsibility that motivates learning, provides an environment in which knowledge can be improved through revision, and protects students’ egos from the psychological ramifications of failure.     

我国竞技体育“树的生态理论”新体系构建的研究

通过对现行竞技体育体制现状的研究,提出竞技体育“树的生态理论”。采用文献法、问卷调查法、专家访谈等方法,得出我国竞技体育体系必须进行改革的结论,提出构建竞技体育“树的生态理论”新体系,并对新体系的具体实施及运行机制提出了积极的构想。     

Knowledge management process effectiveness: measurement of preliminary knowledge management implementation

While knowledge management (KM) has been widely discussed by many academics and practitioners, measurement is undoubtedly the least developed aspect of KM due to the intangibility of knowledge assets. It is of paramount importance to establish performance measures at different stages of KM implementation even from the beginning so that its effectiveness can be identified. This paper thus serves to explore KM performance measurement from the angle of KM process effectiveness. Through the data collected from 289 managers in the Malaysian telecommunication industry, where KM implementation is just beginning to take place, significant interactions were found between four of the five proposed KM preliminary success factors (i.e. business strategy, K audit, K map, KM team) and all four KM elements of strategies (i.e. technology, culture, leadership, measurement) with KM process effectiveness. The findings of this study serve as a guide for organizations in driving their KM journey and reaching their destinations even at the beginning stage of their KM implementation.     

Learning deeply in science: An analysis and reintegration of deep approaches in two case studies of grade 8 students

The purpose of this study was to articulate in fine detail, the kinds of learning strategies associated with a deep approach to learning science. The interactions of two groups of Grade 8 students were taped while they were engaged in hands-on science activities during instruction in a chemistry unit. The students were also interviewed both before and after instruction to find out more about their understanding of the science concepts in this unit. The focus in this paper is on case studies of two students who showed a deep approach to learning. Analysis of transcipts produced several categories which were used to classify the different strategies used by the students. Examples illustrating the use of these strategies are provided. A model illustrating how a learner's use of strategies is translated into regulatory control of the learning process is proposed.