A method for personalising the blade size for competitors in flatwater kayaking

The intent of this project was to explore the feasibility of personalising the paddle blade size for individual flatwater kayakers based on their power output profiles. Twelve elite male kayakers performed on a kayak ergometer at the same intensity and resistance that they would normally experience while paddling at race pace for 500 m on the water. The kayak ergometer was instrumented so that power profiles could be determined from the instantaneous force and velocity of the representative centre point of the paddle blade. From the power profile information, the researchers calculated a personalised blade size that was expected to improve performance for those kayakers differing more than 5% from the calculated ‘ideal’ size. For the elite kayakers studied, it was recommended that seven of the paddlers should increase their blade size by approximately 5–10%. For the remaining five paddlers, the results indicated that their current blade sizes were within the expected measurement error of their predicted ideal value and should be retained. It is anticipated that this research will provide the theoretical rationale for elite kayakers to see the need to personalise their blade size based on their own muscle power profiles.     

Emotion Work Revealed by Job Loss Discourse: Backgrounding-Foregrounding of Feelings, Construction of Normalcy, and (Re)instituting of Traditional Masculinities

Three emotion work themes were displayed in the discourse of individuals who lost their jobs and of their family members. Foregrounding-backgrounding of emotions indicated not only how some individuals and family members exerted effort to express positive emotions, but also why they would do so (for deep authenticity). In the construction of normalcy, respondents made an effort to portray and enact their lives as similar to the way things were before the job loss. By (re)instituting traditional masculinities, the men who lost their jobs were able to be "real" men in an emasculating situation. Taken together, these findings offer possibilities for further theoretical development and for communication interventions that can be applied by human resource professionals, career and outplacement counselors, family members, friends, and the individuals themselves.     

Demonstration of Classroom Survival Skills in Kindergarten: A five-year transition study of children with intellectual disabilities

Thirty-three children with a range of intellectual disabilities who participated in a transition program embedded within a model inclusive preschool program were enrolled in mainstream kindergarten classes from 1995 to 1999. In the second of four kindergarten terms the classroom survival skills, on-task behaviour across a range of activities and following teacher directions, were measured by observing the children with intellectual disabilities and a typical peer, nominated by each classroom teacher. While the teacher-nominated peers outperformed the students with intellectual disabilities in total time-on-task, the level achieved by the children with intellectual disabilities was still at the lower end of what is regarded as average. There was no statistical difference between the two groups in on-task behaviour during independent activities but the difference between the groups during whole class instruction was highly significant. This may have implications for the selection of strategies for preparing children for transition and the adaptation of teaching practices. On-task behaviour did not vary a great deal across level of intellectual disability but gender may have been a contributing factor. There appeared to be a greater difference between students with and without disabilities in responding to teacher directions. The results of the present study suggest that successful demonstration of these critical skills requires more appropriate teacher preparation and intervention at the kindergarten level.     

Multiple‐Choice Tests and Student Understanding: What Is the Connection?

Instructors can use both “multiple‐choice” (MC) and “constructed response” (CR) questions (such as short answer, essay, or problem‐solving questions) to evaluate student understanding of course materials and principles. This article begins by discussing the advantages and concerns of using these alternate test formats and reviews the studies conducted to test the hypothesis (or perhaps better described as the hope) that MC tests, by themselves, perform an adequate job of evaluating student understanding of course materials. Despite research from educational psychology demonstrating the potential for MC tests to measure the same levels of student mastery as CR tests, recent studies in specific educational domains find imperfect relationships between these two performance measures. We suggest that a significant confound in prior experiments has been the treatment of MC questions as homogeneous entities when in fact MC questions may test widely varying levels of student understanding. The primary contribution of the article is a modified research model for CR/MC research based on knowledge‐level analyses of MC test banks and CR question sets from basic computer language programming. The analyses are based on an operationalization of Bloom's Taxonomy of Learning Goals for the domain, which is used to develop a skills‐focused taxonomy of MC questions. However, we propose that their analyses readily generalize to similar teaching domains of interest to decision sciences educators such as modeling and simulation programming.     

Constructivisms and Relativisms: A Shopper‘s Guide

Diverse forms of constructivism can be found in the literature today. They exhibit a commonality regarding certain classical positions that they oppose - a unity in their negative identities - but a sometimes wild multiplicity and incompatibility regarding the positive proposals that they put forward. In particular, some constructivisms propose an epistemological idealism, with a concomitant relativism, while others are explicitly opposed to such positions, and move in multifarious different directions. This is a potentially confusing situation, and has resulted in some critics branding all constructivisms with the charge of relativism, and throwing out the baby with the bath water. In addition, since the epistemological foundations of even non-relativist constructivisms are not as familiar as the classical positions, there is a risk of mis-interpretation of constructivisms and their consequences, even by some who endorse them, not to mention those who criticize. Because I urge that some version of constructivism is an epistemological necessity, this situation strikes me as seriously unfortunate for philosophy, and potentially dangerous for the practice of education.     

Personal Development and the Self in Work Experience

Abstract

This article explores the experience of a group of young people who experienced difficulty attending school. Young people's reasons for not attending school and the support provided for them by their teachers are examined. Finally, an analysis based on a shift in identity from school refuser to effective learner is offered as an explanation for the students' success in coping with school. The authors draw on Paul Klee's metaphor of art as a development that can go forwards, backward, up and down as similar to the processes of working with such young people. They argue that to expect linear progress is both unrealistic and sets unfair expectations on students and their teachers.     

The somatic marker as a “short cut” to verbal immediacy

This study examined the relationships between the somatic‐marker hypothesis, developed by Damasio (1994) as it relates to homophily and verbal immediacy in the classroom. Damasio has hypothesized that when particular events occur in one's life, there is a “memory” of that event in the brain. As a result, when a similar event occurs, the somatic marker recreates that first event. Students were provided three different scenarios about the first day of a communication class. In the scenarios, the instructor presented information about himself. One instructor provided only autobiographical, demographic data (the control). Another provided information hozu he had had difficulty with public speaking (the selfish marker). The third provided information about how the instructor had helped someone else who had difficulty in public speaking (the altruistic marker). The results indicated that while homophily differences were not significant, there was a significant difference between the control group and the altruistic marker.     

Teaching imaginary children: University students’ narratives about their Latino practicum children

This study investigates the dialogic processes involved in how teachers talk about their students and what consequences their ways of talking (i.e., “narratives”) may have for their guidance. We take a sociocultural perspective on learning as transformation of students’ subjectivity. Teaching, as a process of guiding and facilitating learning, cannot be effective if the teacher does not actively seek how the student perceives and understands reality. We borrow and adapt from Bakhtin (1999) four narrative ways of talking about others: objectivizing, subjectivizing, problematizing and finalizing. The presence of these narratives in web discussion postings of our pre-service teachers about the Latino children they worked with in a community center are analyzed. We then compare their ways of talking about children with print- and web-based discussions about children made by in-service teachers, model teachers and our pre-service teachers in a school-based practicum. Using mixed quantitative and qualitative methodologies, we found an overwhelming predominance of objectivizing and finalizing in our pre-service teachers’ narratives about the children with whom they work that seems to define a certain pedagogical regime that we call here “teaching imaginary children/students.” This “way of talking” about children seems to be characterized by unchecked speculations guiding instruction that are not tested by finding out from the children themselves how they understand the instruction and the world. These speculations, in turn, can lead to a dogmatic approach towards children.     

NBA不再需要『飞人』

迈克尔·乔丹曾经为NBA缔造了一个不可超越的神话,至今人们仍能回忆起“飞人”漂亮的腾空、转身、换手投篮和他吐出的舌头。但今天的NBA无疑已不再是“飞人”的天下,人们总在呼唤新的传奇出现,但NBA真的这么需要英雄独侠搭建精彩的“舞台”吗?