The Negotiated Project Approach: Project-Based Learning without Leaving the Standards Behind

The purpose this study was to explore how a veteran first-grade teacher collaboratively negotiated the implementation of a project with her students while, at the same time, addressed grade-level standards. Researchers investigated the teacher’s strategies for integrating the district’s standards into project topics, investigative activities, and final presentations. They also examined the teacher’s strategies for promoting students’ participation in project planning and independent problem-solving. Data sources included field notes, teacher interviews, videotaped observations, and transcribed teacher, and student interviews. As an extension to teacher-directed approaches to implementing the project approach, the results of this study revealed a collaborative approach to implementing projects that allowed the teacher and the students to work together for project planning and learning. The teacher felt successful with meeting grade level learning needs, and the students were given the opportunity to fuel their learning by expressing their natural interests and curiosities, and become problem solvers.     

The mathematical strengths and weaknesses of children with dyslexia

This paper reports the findings of two related studies that examined the mathematical strengths and weaknesses of children with dyslexia. In study one, dyslexic children were compared to children without special educational needs on tests that assessed arithmetic fact recall, place value understanding and counting speed. Study two used the same methodology, but matched the dyslexic children with the non‐dyslexic children on a number of factors, including intellectual ability. This excluded the possibility that confounding variables accounted for the differences between the groups in study one. Both studies indicated that the dyslexic children had slower and less accurate number fact recall than the non‐dyslexic children, but had unimpaired place value understanding. The results for counting speed were more equivocal, but there was a trend for the dyslexic children to be slower counters. The results suggest that dyslexia is not normally associated with a general mathematical impairment, but rather an uneven profile of skills. This profile can be explained in terms of the phonological processing weaknesses associated with dyslexia. The finding that dyslexic children have a specific difficulty recalling arithmetic facts suggests that a teaching programme that emphasises mental methods may disadvantage them.     

Human and animal perceptual learning: Some common and some unique features

A selective summary of the four contributions to this special issue of Learning & Behavior on perceptual learning is presented. Mackintosh and Hall propose an associative analysis of perceptual learning. It is argued that Tsushima and Watanabe’s psychophysical evidence and Fiser’s Bayesian-modeling work represent (in different ways) challenges to the associative approach. Some tentative suggestions are explored with regard to how animal learning theorists might meet these challenges. Finally, the role of awareness in perceptual learning is briefly examined.     

Exploring IT-enabled innovation: A new paradigm?

Innovation is a major strategic issue for many organizations. This paper reports on findings from 10 case studies of successful IT-enabled innovation covering a wide range of organizations and projects. They were carried out as an exploratory study to identify practices that contribute to innovation and specifically consider the implications of a focus on innovation for earlier work on benefits-led approaches to IT.     

Selective immigration policies as screening devices and the immigrant–native educational achievement gap

The literature on the immigrant–native educational achievement gap is suggestive of a better performance of immigrant students in countries practising selective immigration policies. However, the origin of such differences has not been investigated. I considered both important observed characteristics as well as the role of unobservables in the formation of immigrant–native achievement differences in 4 selective immigration countries. I found that, if the comparison is between selective immigration countries as a group and other European/Organisation for Economic Co-operation and Development (OECD) countries, immigrant students in selective immigration countries perform better. However, the results are heterogeneous and different conclusions apply to each of the 4 countries. The findings are discussed in the context of successful immigration policies as screening devices, which induce a self-selection of immigrants with transferable and adaptive skills. Potentially important are also institutional differences with respect to how inclusionary and conducive to the integration of immigrants into the host country policies are.     

Two balls is too many: stadium performance and queerness among Portland’s Rose City Riveters supporters club

Abstract

Portland, Oregon’s Rose City Riveters is the largest independent organized supporters group for a women’s soccer team in the world. They support Portland Thorns with an organized, expressive and organic performance of songs, musical instruments and displays that envelopes the entire stadium. Utilizing ethnographic subject-centred methods, this empirical study argues that the group’s performance reflects two different performance lineages, organically organized transnational soccer fandom on one hand and disidentifying queer public performance on the other. This paper explores how different elements of these lineages overlap in the Riveters’ performance to disrupt, negotiate and resist the dominant ideologies of hyper-masculinity and heteronormative femininity that shape professional soccer in the United States.     

Knowledge and perceptions of sport psychology within English soccer

The aim of the present study was to examine knowledge and perceptions of applied sport psychology within English soccer. National coaches (n = 8), youth academy directors (n = 21) and academy coaches (n = 27) were surveyed using questionnaire and interview methods. Questionnaire results revealed a lack of knowledge of sport psychology that appeared to underpin some of the most significant barriers to entry for sport psychologists. These included lack of clarity concerning the services of a sport psychologist, problems fitting in and players' negative perceptions of sport psychology. Overall, however, lack of finance was the highest rated barrier. Six barrier dimensions emerged from the interview data: negative perceptions of psychology, lack of sport psychology knowledge, integrating with players and coaching staff, role and service clarity, practical constraints, and perceived value of sport psychology. These findings were broadly compatible with the survey data, with finance emerging as a major barrier and misconceptions of sport psychology being common. Our conclusions are discussed in relation to the practical implications of the study for both applied research and the provision of sport psychology services within English soccer.     

Optimisation of the chain drive system on sports motorcycles

This paper investigates the optimisation of the chain drive system on sports motorcycles. Recently there has been the development of a chain transmission efficiency model that is suitable for motorcycles. The new model is used to predict the efficiency of 600cc sports motorcycle at different speeds. The transmission efficiency is estimated to be between 96 and 99% for speeds less than 75 mile/h. Between 75 and 150 mile/h the transmission efficiency can be as low as 85% due to inertial tension. The transmission efficiency model presented in this paper enables optimisation of sprocket and chain sizes. In general, large sprockets are better at low speeds and smaller sprockets are better at high speeds. The optimum chain size is the chain with the smallest pitch that can meet the torque and power requirement. The sprocket centre distance also has a big effect on efficiency and it is important to use an effective installation procedure. In particular, it is important to set a chain up when the rear wheel axle, front crank and swing arm bearing are all in-line.     

System Performance and Natural Language Expression of Information Needs

Consider information retrieval systems that respond to a query (a natural language statement of a topic, an information need) with an ordered list of 1000 documents from the document collection. From the responses to queries that all express the same topic, one can discern how the words associated with a topic result in particular system behavior. From what is discerned from different topics, one can hypothesize abstract topic factors that influence system performance. An example of such a factor is the specificity of the topic's primary key word. This paper shows that statements about the effect of abstract topic factors on system performance can be supported empirically. A combination of statistical methods is applied to system responses from NIST's Text REtrieval Conference. We analyze each topic using a measure of irrelevant-document exclusion computed for each response and a measure of dissimilarity between relevant-document return orders computed for each pair of responses. We formulate topic factors through graphical comparison of measurements for different topics. Finally, we propose for each topic a four-dimensional summarization that we use to select topic comparisons likely to depict topic factors clearly.