In sports, inertial measurement units are often used to measure the orientation of human body segments. A Madgwick (MW) filter can be used to obtain accurate inertial measurement unit (IMU) orientation estimates. This filter combines two different orientation estimates by applying a correction of the (1) gyroscope-based estimate in the direction of the (2) earth frame-based estimate. However, in sports situations that are characterized by relatively large linear accelerations and/or close magnetic sources, such as wheelchair sports, obtaining accurate IMU orientation estimates is challenging. In these situations, applying the MW filter in the regular way, i.e., with the same magnitude of correction at all time frames, may lead to estimation errors. Therefore, in this study, the MW filter was extended with machine learning to distinguish instances in which a small correction magnitude is beneficial from instances in which a large correction magnitude is beneficial, to eventually arrive at accurate body segment orientations in IMU-challenging sports situations. A machine learning algorithm was trained to make this distinction based on raw IMU data. Experiments on wheelchair sports were performed to assess the validity of the extended MW filter, and to compare the extended MW filter with the original MW filter based on comparisons with a motion capture-based reference system. Results indicate that the extended MW filter performs better than the original MW filter in assessing instantaneous trunk inclination (7.6 vs. 11.7◦ root-mean-squared error, RMSE), especially during the dynamic, IMU-challenging situations with moving athlete and wheelchair. Improvements of up to 45% RMSE were obtained for the extended MW filter compared with the original MW filter. To conclude, the machine learning-based extended MW filter has an acceptable accuracy and performs better than the original MW filter for the assessment of body segment orientation in IMU-challenging sports situations.
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This article reports on a study concerning relationships between personality traits and three aspects of Individual Learning Theories (ILTs) on acquiring social-communicative competence: self-perceived social-communicative competence, domain-related learning conceptions and preferred learning situations. ILTs are personal theories, which serve as frames of reference to describe, categorise and explain learning and school-related issues with regard to a particular domain. We investigated relations between personality and three ILT variables for first-, second- and fourth-year social work students. Results show that personality and ILT variables are related. Especially self-perceived competence and personality are related. Autonomy plays the most important role, especially for first-year students. Autonomy also predicts learning situations that first- and fourth-year students favour. Personality is more strongly related to ILT variables for social work students in the first year of their study. For these students personality predicts self-perceived social-communicative competence and preferences for learning situations. For older students, especially the second-year students, personality and ILT variables are less related. Increased insight into the role of personality in ILTs can help to improve education.
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When studying the acquisition of social-communicative competence, it is important to take students' individual learning theories into account. Increased insight into the role ILTs play can be of help in improving social work education.
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This article reports on a literature review on empirical research investigating learning for vocations in the context of vocational education. We included 36 studies in which learning for vocations is empirically studied. Learning for vocations is characterised based upon prevalent research traditions in the field and framed from the perspective of vocational education and organised learning practices. This framing and characterisation directed the search terms for the review. Results show empirical data on vocational learning and illustrate how learning processes for the functions of vocational education - vocational identity development, development of a vocational repertoire of actions, and vocational knowledge development - actually take place. The review further shows that, empirical illustrations of learning processes that occur in the context of vocational education and organised learning practices are relatively scarce. The findings can be typified in relation to our theoretical framework in terms of three learning processes, that is learning as a process of (a) belonging, becoming, and being, (b) recontextualization, and (c) negotiation of meaning and sense-making. We argue that more empirical research should be carried out, using the functions of vocational education and the three learning processes to better understand vocational learning.
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To adequately deal with the challenges faced within residential care for older people, such as the increasing complexity of care and a call for more person-centred practices, it is important that health care providers learn from their work. This study investigates both the nature of learning, among staff and students working within care for older people, and how workplace learning can be promoted and researched. During a longitudinal study within a nursing home, participatory and democratic research methods were used to collaborate with stakeholders to improve the quality of care and to promote learning in the workplace. The rich descriptions of these processes show that workplace learning is a complex phenomenon. It arises continuously in reciprocal relationship with all those present through which both individuals and environment change and co-evolve enabling enlargement of the space for possible action. This complexity perspective on learning refines and expands conventional beliefs about workplace learning and has implications for advancing and researching learning. It explains that research on workplace learning is itself a form of learning that is aimed at promoting and accelerating learning. Such research requires dialogic and creative methods. This study illustrates that workplace learning has the potential to develop new shared values and ways of working, but that such processes and outcomes are difficult to control. It offers inspiration for educators, supervisors, managers and researchers as to promoting conditions that embrace complexity and provides insight into the role and position of self in such processes.
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The principal aim of this study is to explore the relations between work domains and the work-related learning of workers. The article is intended to provide insight into the learning experiences of Dutch police officers during the course of their daily work. Interviews regarding actual learning events and subsequent changes in knowledge, skills or attitudes were conducted with police officers from different parts of the country and in different stages of their careers. Interpretative analyses grounded in the notion of intentionality and developmental relatedness revealed how and in what kinds of work domains police officers appear to learn. HOMALS analysis showed work-related learning activities to vary with different kinds of work domains. The implications for training and development involve the role of colleagues in different hierarchical positions for learning and they also concern the utility of the conceptualisation of work-related learning presented here.
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The workforce in the EU is ageing, and this requires investment in older workers so that the organisations in which they work remain competitive and viable. One such investment takes the form of organising and facilitating intergenerational learning: learning between and among generations that can lead to lifelong learning, innovation and organisational development. However, successfully implementing intergenerational learning is complex and depends on various factors at different levels within the organisation. This multidisciplinary literature review encompasses work from the fields of cognitive psychology, occupational health, educational science, human resource development and organisational science and results in a framework that organisations can use to understand how they can create the conditions needed to ensure that the potential of their ageing workforce is tapped effectively and efficiently. Although not a comprehensive review, this chapter serves as a basis for further empirical research and gives practitioners an insight into solving a growing problem.
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Situated learning plays a key role in internships and other practice-based learning settings in teacher education. The dominant assumption for a long time has been that the development of teaching competency is advanced most through practical teaching experience and post-lesson conferences between mentor and student teachers. It is through the reflection of teaching and classroom processes that student teachers are believed to develop their professional knowledge. The assistance of such reflection draws on mentor teachers’ teaching expertise. Mentor teachers, however, rarely explicate practical and theory-based knowledge underlying their practice and student teachers are not inclined to search for their mentor teacher’s underlying knowledge. As a consequence, the knowledge underlying effective teaching often remains implicit. The symposium brings together three novel approaches to assist teacher learning, which aim to make knowledge of teaching explicit. To bridge the gap between mentor and student teachers’ instructional concepts, the method of videobased tagging as a pre-requisite to initiate and structure professional dialogue is suggested and researched by van den Bogert, Crasborn, Bruggen and Eindhoven in The Netherlands. The second study by Staub, Waldis, Schatzmann and Futter investigates effects of an intervention with mentor teachers in Switzerland, suggesting the enactment of pre-lesson conferences and/or the use of a core concepts for lesson planning and reflection. A third study involving Germany and Switzerland by Kreis, Schnebel, Wyss, Wagner and Deiringer researches student teachers’ knowledge, beliefs and experiences related to collaborative lesson planning with peers. The shared assumption is that all three approaches enhance explicit communication on teaching and encourage professional dialogues that contribute to teacher learning in significant ways. Eliciting mentor and pre-service teachers’ practical knowledge using teacher-tagged classroom situations Bogert van den, Crasborn, Bruggen van & Jochems) Objectives The present study has a twofold objective. First, elicitation of mentor and pre-service teachers’ conceptualizations of videotaped classroom situations to clarify similarities and differences between practical knowledge of experienced and novice teachers. Second, exploration of ‘collaborative tagging’ as a new method to access mentors and pre-service teachers’ practical knowledge. Theoretical framework Teachers’ practical knowledge underlies overt teaching behavior, and is personal, unique, often tacit, and intertwined with teaching actions (Meijer, Verloop, & Beijaard, 2002). The ability to notice and interpret what is happening in a classroom is a basic aspect of teachers’ practical knowledge (Goodwin, 1994). Experienced teachers are more proficient in this essential perceptional process than novice teachers (Berliner, 2001; Sabers, Cushing, & Berliner, 1991). Consequently, proficient teachers may facilitate the professional development of novices. However, mentor teachers rarely explicate practical knowledge underlying their teaching practice (Edwards & Protheroe, 2004), and most pre-service teachers are not inclined to search for their mentor teacher’s practical knowledge (Penny, Harley, & Jessop, 1996). Hence, in this study we explored ‘collaborative tagging’ (Mika, 2005): a method where many people independently attach keywords called tags to e.g. videos, for categorization and fast future retrieval. Collaborative tagging has gained popularity since 2004 (Hammond, Hannay, Lund, & Scott, 2005), indicating the willingness and ease with which this activity is undertaken. In other studies (Cattuto, Benz, Hotho, & Stumme, 2008; Mika, 2005) network analysis of the co-occurrence of tags revealed the semantic relationships between the tags; a bottom-up taxonomy, or a so called folksonomy (Vander Wal, 2004). In this study, collaborative tagging was applied to explore the structure of teachers’ knowledge and compare conscious aspects of mentor and pre-service teachers’ practical knowledge. The main research questions were: • Which concepts do mentor- and pre-service teachers use to tag videotaped classroom situations? • To what extent do the generated tags and the relations between them differ between mentor- and pre-service teachers? • To what extent is collaborative tagging is helpful in gaining access to conscious aspects of mentors and pre-service teachers’ practical knowledge? Method Participants were 100 mentor-teachers and 100 pre-service teachers. The participants each ‘tagged” five video-fragments of different classroom situations. Data were analyzed with UCINET software as proposed by Mika (2005). Co-occurrences of tags were computed. Familiar measures of social network analysis (e.g. clustering coefficients, and (local) betweenness centrality) were used to describe each folksonomy, and to compare pre-service and mentor teachers’ networks of tags. Results and significance The study established that tagging is a promising new method to elicit teachers’ practical knowledge. The resulting folksonomies clarified similarities and differences between mentors’ and pre-service teachers’ practical knowledge. Results indicate that experienced teachers use more detailed and specific tags than pre-service teachers. This method makes a significant contribution to the methodology of the study of teachers’ practical knowledge. Folksonomies not only elicit individual teachers’ practical knowledge but enable researchers to discern common element’s in teachers’ practical knowledge. Moreover, in teacher education, folksonomies are helpful to initiate and structure professional dialogue between pre-service and mentor teachers.
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From the article: "The goal of higher professional education is to enable students to develop into reflective practitioners, having both a firm theoretical knowledge base as well as appropriate, professional attitudes and skills. Learning at the workplace is crucial in professional education, because it allows students to learn to act competently in complex contexts and unpredictable situations. Reflection on learning during an internship is hard to interweave with the working process, which may easily result in students having little control over their own learning process while at work. In this study, we aim to discover in what way we can effectively use technology to enhance workplace learning, by synthesizing design propositions for Technology- Enhanced Workplace Learning (TEWL). We conducted design-based research which is cyclic in nature. Based on preliminary research, we constructed initial design propositions and developed a web-based app (software program for mobile devices) providing interventions based on these propositions. In a pilot study, students from different educational domains used this app to support their workplace learning. We evaluated the initial design propositions by carrying out both a theoretical and a practical evaluation. With the insights obtained from these evaluations, we developed a next version of the design propositions and improved the app accordingly. The research result is a set of design propositions for TEWL. For daily practice, the developed web-based app is available for re-use and further research and development."
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Learning objects are bits of learning content. They may be reused 'as is' (simple reuse) or first be adapted to a learner's particular needs (flexible reuse). Reuse matters because it lowers the development costs of learning objects, flexible reuse matters because it allows one to address learners' needs in an affordable way. Flexible reuse is particularly important in the knowledge economy, where learners not only have very spefic demands but often also need to pay for their own further education. The technical problems to simple and flexible are rapidly being resolved in various learning technology standardisation bodies. This may suggest that a learning object economy, in which learning objects are freely exchanged, updated and adapted, is about to emerge. Such a belief, however, ignores the significant psychological, social and organizational barriers to reuse that still abound. An inventory of these problems is made and possible ways to overcome them are discussed.
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