An Ethics of (not) Showing: Citizen Witnessing,Journalism and Visualizations of a Terror Attack

ABSTRACT

This paper explores how news organizations visualize crises in a digital media ecology shaped by citizen witnessing and widespread image circulation on social media. Empirically, the paper draws on the events of 7 April 2017 in Stockholm when a hijacked truck plowed into crowds, killing five and injuring several others. The study is informed by theoretical perspectives and research on citizen photojournalism and witnessing, and examines the function of visual citizen contributions, degrees of explicitness in visual coverage and the impact of proximity on visualizations of crises. Qualitative analyses of visual content and text in digital and print editions of four Swedish newspapers showed both enhancing and featured positioning of visual eyewitness contributions from the public, few examples of explicit imagery, and journalistic commentary foregrounding ethical dimensions of showing and seeing. Based on the findings, the author considers journalism’s civic response as a strategy for staking a claim to credibility and ethics at a moment when the journalistic gatekeeping position is called into question.     

Establishing mathematics for teaching within classroom interactions in teacher education

Teacher educators’ processes of establishing “mathematics for teaching” in teacher education programs have been recognized as an important area for further research. In this study, we examine how two teacher educators establish and make explicit features of mathematics for teaching within classroom interactions. The study shows how the establishment of mathematics for teaching is dependent on the use of keywords from the mathematics education domain, the introduction of variation, and the use of generic communicative strategies. As such, the study could be seen as a contribution to ongoing research on how mathematics teacher educators interactively deal with mathematics for teaching.     

A new device for evaluating distance and directional performance of golf putters

Abstract

The purpose of this study was to construct and evaluate the reliability of an apparatus for testing golf putters with respect to distance and direction deviation at different impact points on the clubface. An apparatus was constructed based on the pendulum principle that allowed putter golf clubs to swing at different speeds. The mean speed of the club head before ball impact, and of the ball after impact, was calculated from time measurements with photocells. A pin profile rig was used to determine the directional deviation of the golf ball. Three different putters were used in the study, two that are commercially available (toe-heel weighted and mallet types) and one specially made (wing-type) putter. The points of impact were the sweet spot (as indicated by the manufacturer's aim line), and 1, 2 and 3 cm to the left and right of the sweet spot. Calculation of club head speed before impact, and of ball speed after impact (proportional to distance), showed errors ≤ 0.5% of interval duration. The variability in ball impacts was tested by measuring time and direction deviations during 50 impacts on the same ball. The mean duration (± s) after ball impact in the test interval (1.16 m long) was 206 (0.8) ms and the standard deviation in the perpendicular spreading of the balls in relation to the direction of the test interval was 0.005 m. A test – retest of one putter on two consecutive days after remounting of the putter on the test apparatus showed less than 1% difference in distance deviation. We conclude that the test apparatus enables a precise recording of distance and direction deviation in golf putters as well as comparisons between different putters. The apparatus and set-up can be used in the laboratory as well as outdoors on the putting green.     

Reliability and validity of a new double poling ergometer for cross-country skiers

Abstract

Thirty-eight competitive cross-country skiers were divided into three groups to assess the reliability and validity of a new double poling ergometer. Group A (n = 22) performed two maximal 60-s tests, Group B (n = 8) repeated peak oxygen uptake tests on the double poling ergometer, and Group C (n = 8) performed a maximal 6-min test on the double poling ergometer and a double poling time-trial on snow. The correlation between the power calculated at the flywheel and the power applied at the base of the poles was r = 0.99 (P < 0.05). The power at the poles was 50 – 70% higher than that at the flywheel. There was a high test – retest reliability in the two 60-s power output tests (coefficient of variation = 3.0%) and no significant difference in peak oxygen uptake in the two 6-min all-out tests (coefficient of variation = 2.4%). There was a strong correlation between the absolute (W) and relative power (W · kg^?1) output in the 6-min double poling ergometer test and the double poling performance on snow (r = 0.86 and 0.89 respectively; both P < 0.05). In conclusion, our results show that the double poling ergometer has both high reliability and validity. However, the power calculated at the flywheel underestimated the total power produced and needs to be corrected for in ergonomic estimations.     

Educational Responses to Newly Arrived Students in Sweden: Understanding the Structure and Influence of Post-Migration Ecology

Education systems around the world have experienced a rise in the number of newly arrived students. This article explores the manner in which the Swedish education system responds to the diverse needs of these students. Using the concept of post-migration ecology, the authors outline and critically discuss the legal, organisational, and pedagogical responses that make up the educational landscape and structures of post-migration opportunity. The authors point to the emergence of a parallel educational structure and a deficit model in relation to newly arrived students and argue for a shift in perspective to one that recognises individual needs and resources. At stake in such a shift are not only the educational careers of newly arrived students, but also the realisation of the Swedish school system's stated goals of social solidarity and equity.     

The Nature and Role of Common Ground in the Learning of Mathematics in Small-Group Discussions

This study investigates the nature and role of common ground in group learning of mathematics by means of the analytical constructs of focal projects and contextualization. The analysis investigates two students (12–13 years old) playing a dice game, where their task is to distribute a set of markers based on the total of two dice. The analysis shows how consistency between the students' focal projects became crucial in their progression from a uniform to a non-uniform distribution of the markers used in the game. The task system and concrete manipulatives became important in furthering the students' explorations. In the frame of a frequency context, we also discuss how a contextualization may restrict certain aspects of probability from coming into play during such explorations.     

Catching the moments – coteaching to stimulate science in the preschool context

An important task for the preschool teacher is to create meaningful learning situations where children have opportunities to experience science. However, many teachers have both weak subject knowledge and a lack of confidence to teach science. The aim of the project presented in this article was to capture how nine preschool teachers developed their learning of and self-confidence in teaching science during a two-year professional development (PD) project while coplanning, coteaching, and coreflecting on their teaching activities. During the project, the preschool teachers’ self-confidence and attitudes played an important role for the their approach to science activities. Their collaborative learning and reflection became important for their PD and for the way science phenomena were included in the preschool context. As such, the project is based on opportunities for preschool teachers to develop their ideas about science and to reframe their work with the aim to stimulate children’s curiosity for science.     

Dual learning — a challenge for higher education in the new landscape of governance

Tertiary Education and Management - In many countries, practice-oriented programmes have been recast as university programmes, fuelling debate on the purpose of higher education. We highlight two...     

Forms of Life and the Life of Forms: Clay Figurines in Women’s Art

From the end of the XIX century until the second half of the XX century, there is a ‘hidden-stream’ world of women’s popular art in traditional clay work of the Barcelos region – Galegos parishes. At a time when mainstream aesthetic values in fine art are undergoing fundamental change, research into this tradition could contribute to the current status of knowledge of aesthetic value in general, particularly with regard to evaluating the aesthetic in hidden-stream art forms, and the reasons for the negative value attached to female art production. This paper documents and records visually clay figurines of these women artisans, determines how the ceramic tradition is passed on in the community, and reveals the artisans’ views of its meaning, significance, and aesthetic worth. From a feminist perspective, the research will inquire into the aesthetic and other concerns of the women artisans and ascertain their audiences and their reasons for valuing or not valuing the work. Male and female responses to the products of a traditionally female ceramic occupation will be compared. There is a need to document processes of informal and continuous training made available for those who might wish to participate in the future, and to determine the extent to which this heritage is dependent on gender divisions in Portuguese society undergoing a process of change.