Familiar Object Salience Affects Novel Word Learning

Children use the presence of familiar objects with known names to identify the correct referents of novel words. In natural environments, objects vary widely in salience. The presence of familiar objects may sometimes hinder rather than help word learning. To test this hypothesis, 3-year-olds (N = 36) were shown novel objects paired with familiar objects that varied in their visual salience. When the novel objects were labeled, children were slower and less accurate at fixating them in the presence of highly salient familiar objects than in the presence of less salient familiar objects. They were also less successful in retaining these word-referent pairings. While familiar objects may facilitate novel word learning in ambiguous situations, the properties of familiar objects matter.     

The influence of formal and informal formative pre‐service experiences on teacher self‐efficacy

Formal pre‐service training has been shown to be effective in building teacher self‐efficacy beliefs. However, the impact of other, less formal, ‘teacher‐like’ pre‐service experiences on the formation of efficacy beliefs has not previously been investigated. This study examines the associations between both formal and informal formative pre‐service experiences and teacher self‐efficacy. In addition, the effect of years of teaching experience on these associations was investigated. Three hundred fifteen teachers of general and Judaic studies in Jewish day schools in the USA responded to a survey about their formal pre‐service experiences; informal experiences as youth advisors, camp counsellors and childcare supervisors; and two measures of teacher self‐efficacy. Formal pre‐service training and positive student‐teaching experiences, as well as each of the three informal experiences, were found to be associated with positive teacher self‐efficacy. Interestingly, formal and informal pre‐service experiences appear to be associated with different aspects of teacher self‐efficacy. Formal teacher training was most strongly associated with efficacy for instructional practices, while the positive informal experiences were most strongly associated with efficacy for student engagement. The potential impact of both formal and informal experiences did not appear to fade over time. On the contrary, for those variables where an interaction with years of teaching was detected, it was the efficacy beliefs of the most senior teachers that were most related to their pre‐service experiences. These findings have important implications for the practice of both teacher trainers and those charged with recruiting and supporting teachers.     

Relays and relations: tracking a policy initiative for improving teacher professionalism

This paper offers a new way of exploring some of the complexities inherent in attempts by policy makers and others to promote educational change. The focus of this study is on the current drive in education policy to alter the basis of teacher professionalism through the application of principles of lifelong learning to teachers’ professional development. Drawing upon data from two studies of the Chartered Teacher (CT) initiative in Scotland the paper examines the formation of successive transmission points as material relays of relations during the process of implementing this policy objective. It explores how three key discursive elements of a professional standard for accomplished teaching: collaborative action, critical reflection and enquiry, and teacher leadership, were progressively recontextualised during the introduction of CT status in schools. The findings indicate some of the conceptual and political struggles involved at the critical junctures where policy implementation requires the movement of a discourse from one social context to another. The paper suggests that a discursive analysis of how a centrally mandated initiative is transmitted can help to promote an understanding of the complexities of this process and increase critical awareness of the issues at stake for those involved.     

Analysing the integration of engineering in science lessons with the Engineering-Infused Lesson Rubric

ABSTRACT

Science teachers are being called on to incorporate engineering practices into their classrooms. This study explores whether the Engineering-Infused Lesson Rubric, a new rubric designed to target best practices in engineering education, could be used to evaluate the extent to which engineering is infused into online science lessons. Eighty lessons were selected at random from three online repositories, and coded with the rubric. Overall results documented the strengths of existing lessons, as well as many components that teachers might strengthen. In addition, a subset of characteristics was found to distinguish lessons with the highest level of engineering infusion. Findings are discussed in relation to the potential of the rubric to help teachers use research evidence-informed practice generally, and in relation to the new content demands of the U.S. Next Generation Science Standards, in particular.     

Young weightlifters' performance across time

Prestigious professional organisations have questioned the efficacy of resistive training by children or have often neglected to address weightlifting in their position papers on resistive training for children. The purpose of this paper was to address the deficit in data regarding the efficacy of training children for weightlifting and to report data regarding to safety in this population. Eleven subjects (3 female, 8 male) who had trained at the USA Weightlifting Development Centre in Shreveport Louisiana for a minimum of 22 months (mean = 28.8; SD +/- 4.4) served as subjects for this study. Means for the pool of subjects subjected to t-test to compare data obtained at each subject's initial competition with that obtained at the individual's most recent competition revealed significant positive changes in body weight, snatch weight, clean and jerk weight, and total weight lifted. The latter three were significant both in absolute weight and in weight lifted per kg of body weight. Total weight lifted at competitions plotted separately for boys and for girls across time indicated an apparently steeper slope of improvement for boys. The latter were not tested for significance because of the small sample sizes. The lack of injury in training and in 534 competitive lifts was discussed. None required medical attention or loss of training time. It was concluded that there can be no doubt regarding the efficacy of weightlifting as carried out at the USA Weightlifting Development Centre. The importance of proper application of scientific theory of conditioning in a conservative manner for this population was emphasised.     

Movement and stretching imagery during flexibility training

Abstract

The aim of this study was to examine the effect of movement and stretching imagery on increases in flexibility. Thirty volunteers took part in a 4 week flexibility training programme. They were randomly assigned to one of three groups: (1) movement imagery, where participants imagined moving the limb they were stretching; (2) stretching imagery, where participants imagined the physiological processes involved in stretching the muscle; and (3) control, where participants did not engage in mental imagery. Active and passive range of motion around the hip was assessed before and after the programme. Participants provided specific ratings of vividness and comfort throughout the programme. Results showed significant increases in flexibility over time, but no differences between the three groups. A significant relationship was found, however, between improved flexibility and vividness ratings in the movement imagery group. Furthermore, both imagery groups scored significantly higher than the control group on levels of comfort, with the movement imagery group also scoring significantly higher than the stretching imagery group. We conclude that the imagery had stronger psychological than physiological effects, but that there is potential for enhancing physiological effects by maximizing imagery vividness, particularly for movement imagery.     

Quantifying Qualitative Scholarship: A Fool’s Errand or a Methodological Necessity?

This paper describes our efforts to systematically generate knowledge from ethnographic and other qualitative scholarship as a way of bridging intellectual gaps found in quantitative research. We ground this scholarly endeavor in the study of gangs, which has a lengthy history in the field of criminology, yet lacks a coherent, coordinated, and comparative understanding of gang dynamics, behavior, and impacts. We discuss the importance of acknowledging the multiple and mixed methodologies used in gang scholarship and detail the inductive, deductive, and iterative process that helped us (1) develop a comprehensive coding instrument for coding a range of qualitative works, (2) establish the instrument’s inter-rater reliability, and (3) remain cognizant and reflexive about the strengths of both quantitative and qualitative research. Finally, we share the critical yet informative challenges we faced throughout the project and conclude with reflections on why the project was unsuccessful in the way we originally envisioned.     

The Effect of Increasing Conceptual Challenge in Primary Science Lessons on Pupils' Achievement and Engagement

This paper reports research into the effect on 11‐year‐old pupils of introducing more cognitively challenging, practical, and interactive science lessons. Our hypothesis was that such lessons would increase the children's enthusiasm for science and their engagement with the scientific process, thereby improving educational performance. Schools in England are under pressure to raise achievement, as measured by the results of national tests. This has an impact on teaching, where revision of subject knowledge often dominates and can be particularly detrimental to more able pupils. The research was a controlled trial which took place in thirty‐two English primary schools as part of a project “Conceptual Challenge in Primary Science”. Teachers from 16 intervention schools participated in continuing professional development (CPD) and developed science lessons that had more practical work, more discussion, more thinking and less (but more focused) writing. The proportion of pupils achieving the highest level (level 5) in the national science tests at age 11 was compared in the matched‐school pairs before and after the intervention. Focus group interviews were also held with a group of pupils in each intervention school. There was a 10% (95% Confidence Interval 2–17%) increase in the proportion of children achieving the top score in the intervention schools. The pupils and teachers reported greater engagement and motivation. These findings suggest that moving from rote revision to cognitively challenging, interactive science could help improve science education. They merit replication in other international settings to test their generalisability.     

新一代流行乐之王

At the Butcher Shop, a steakhouse in downtown Memphis, a banquet-size table is crowded with people who are all somehow asso-ciated with Justin Timberlake: his mother and stepfather, Lynn and Paul Harless (who co-manage his career), his best friend's girlfriend, his publicist, some family friends, business asso-ciates, me. We pass our time laughing and drinking wine and eating filet (鱼片) mignon and twice-baked potatoes, but we're really just waiting     

爱:最神奇的力量

一位大学教授在他的社会学课堂上,让他的学生去巴尔迪摩贫民窟找到两百个男孩的记录,并且要对每个男孩的未来做出评估.学生们给每个孩子的评价都是:“这辈子根本没有机会翻身了.”二十五年后,另外一个社会学教授发现了这个早期做过的社会调查.于是他让自己的学生继续探究这个课题,看看当初那些小男孩现在到底怎么样了.