The Influence of Toy Design Activities on Middle School Students’ Understanding of the Engineering Design Processes

The societal demand for inspiring and engaging science, technology, engineering, and mathematics (STEM) students and preparing our workforce for the emerging creative economy has necessitated developing students’ self-efficacy and understanding of engineering design processes from as early as elementary school levels. Hands-on engineering design activities have shown the potential to promote middle school students’ self-efficacy and understanding of engineering design processes. However, traditional classrooms often lack hands-on engineering design experiences, leaving students unprepared to solve real-world design problems. In this study, we introduce the framework of a toy design workshop and investigate the influence of the workshop activities on students’ understanding of and self-efficacy beliefs in engineering design. Using a mixed method approach, we conducted quantitative analyses to show changes in students’ engineering design self-efficacy and qualitative analyses to identify students’ understanding of the engineering design processes. Findings show that among the 24 participants, there is a significant increase in students’ self-efficacy beliefs after attending the workshop. We also identified major themes such as design goals and prototyping in students’ understanding of engineering design processes. This research provides insights into the key elements of middle school students’ engineering design learning and the benefits of engaging middle school students in hands-on toy design workshops.     

Learning as the Construction and Re-mediation of Activity Systems: Environmental Management in Biogas Production

Abstract

The purpose of this paper is to present theoretical tools for understanding the dynamics of change and learning during the emergence and development of environmental management activities. The methodology consists of a historical analysis of a case of biogas production that took place in the Southwest region of Finland. The theoretical tools used helped to see how the content of an activity guided the historical emergence and change of an EM activity. The practical implication of the paper is that environmental solutions should not be restricted to the adaptation of a system, but should also include the possibility of constructing a new activity, with a new object and means of production. The paper is original in presenting theoretical tools for grasping the content of learning in environmental management activities.     

Grammar and text: an experiment in teacher training / Gramática y texto: un experimento en la formación de profesores

Abstract

The article describes an experiment in teaching training undertaken in the context of the Masters programme in Teacher Training (for primary school teachers) at the Lisbon College of Education. The training experiment was able to: (1) incorporate mother tongue teaching into the broader curriculum; (2) relate the teaching of texts and the teaching of grammar; and (3) integrate the theoretical and practical dimensions of teacher training. The didactic scheme adopted relies on theoretical assumptions such as the concept of the integrated curriculum, the model of didactic sequence and the principles of socio-discursive interactionism. This training experiment has proved to be particularly useful for all the participants in the process (teachers of the course; trainee teachers; children in the schools; and the form teachers of the classes where the trainees do their practice). As a result of it, there has been a clear improvement in the quality of the teaching provided by our trainees in the domains of writing and grammar. The main advantages of this approach are that: (1) it structures the teaching of writing and grammar; (2) it uses projects to socially contextualize writing tasks; (3) it develops various language skills in an integrated fashion, while at the same time working on different areas of knowledge; and (4) it defines forms of spiral progression.     

Short-term tracking of performance and health-related physical fitness in girls: The Healthy Growth in Cariri Study

Abstract

The main purpose of this study was to track the performance and health-related physical fitness of girls from Brazil's Cariri region. In the “Healthy Growth in Cariri Study”, 294 girls from public and private schools were divided into four age cohorts – 8, 10, 12, and 14 years – and followed for three consecutive years, with an assessment every 6 months. Shuttle run, hand grip, standing long jump, trunk lift, curl-up, 12-min run, and fatness were used to rate physical fitness performance and health-related components on each of six occasions. Tracking was done in a stepwise manner, using auto-correlation, by modelling the individual history of change in performance of each girl, and using Foulkes and Davies’ γ-coefficient. SPSS 18.0 and TIMEPATH were used for data analysis. Auto-correlations evidenced low-to-moderate values in almost all components of performance and health-related physical fitness. Intra-individual tracking analysis showed large variation in all fitness components as a result of a wide spread in individual history of change in fitness performance. Population estimates of γ were low in all tests. Our results show low-to-moderate tracking of physical fitness components of girls. A wide range of intra-individual and inter-variability in fitness development was observed.     

Reproducibility of upper leg EMG frequency content during cycling

Reproducibility of frequency content from surface electromyography (sEMG) signals has not been assessed and it is unknown if incremental load testing design could affect sEMG in cycling. The goals of this study were to assess the reproducibility of measures from sEMG frequency content between sessions and to compare these frequency components between a ramp and a step incremental cycling test. Eighteen cyclists performed four incremental load cycling tests to exhaustion. Two tests were performed using a step increment (load started at 100 W for 3 min followed by increments of 30 W every 3 min) and two were performed using a ramp increment (load started at 100 W for 1 min followed by increments of 30 W·min^?1). sEMG was monitored bilaterally for the rectus femoris and vastus lateralis throughout the tests and converted into overall activation (whole signal bandwidth), high- and low-frequency contents. The reproducibility of the frequency content ranged from none to strong (ICC = 0.07–0.90). Vastus lateralis activation was larger at the step compared to the ramp test (P < 0.01), without differences for rectus femoris (P = 0.22–0.91) and for the high-frequency (P = 0.28–0.95) and low-frequency contents (P = 0.13–0.94). sEMG from vastus lateralis and rectus femoris presented none to strong reproducibility. Vastus lateralis is more activated in step test design.     

Effect of a pilot multi-component intervention on motor performance and metabolic risks in overweight/obese youth

This study evaluated the effect of a multi-component intervention on motor performance (MP) and metabolic risk markers (MRM) in overweight/obese youth. A secondary aim was to examine whether changes in MP are associated to changes in MRM. A 3-month multi-component intervention was performed, consisting of physical exercise sessions (twice/week;1h), nutritional education sessions (once/month), and parental support (twice/week). The sample included 35 volunteers (7–13 y.o), allocated to intervention (INT, n = 17) and control (CONT, n = 18) group. Variables were measured pre (T0) and post intervention (T1). Fasting blood samples were analyzed for MRM. MP tests included the measurement of health related physical fitness components and motor coordination performance (KTK battery). To assess food intake, a 24-hour recall diary was used. GLM-ANCOVA was performed. Standardized scores were calculated for the outcome variables, and multilinear regressions were applied to analyze associations between the key variables. INT group showed improvements in MP, glycolytic and hepatic profiles. After adjustments for MVPA, SB, total intake and maturational stage, negative associations between %ΔMP and %Δglycolytic (β = -.424; 95%CI:-0.343:-0.022), and %Δhepatic scores (β = -.382 95%CI:-0.001:-0.009) were observed. The intervention produced a moderate-to-high effect on the MP and some MRM. Changes in MP were inversely associated with changes in glycolytic and hepatic markers.     

Paradigm wars, dialogue or dance: is rapprochement possible and/or desirable?

In focusing on the Kincheloe and Tobin paper, ‘The Much Exaggerated Death of Positivism,’ this forum explores the hegemony of positivism in the professional practices of a group of educators whose research expertise lies in the fields of science education, mathematics education and leadership education. Responding to the first question, ‘What is your personal/professional experience of the hegemony of positivism?’, four key issues arise: is positivism part of the external world or is it within us (and thus what is our agency)?, the role of positivism as a driver of Western cultural imperialism, dualism as the chief logic of positivism, and the difficulty of responding to positivism from a pluralist perspective. The second question, ‘Is rapprochement between positivism and other paradigms possible and/or desirable without being re-colonised?’, raises a number of key issues that, although relatively new to science education, are of increasing interest to cultural studies researchers keen to embrace alternative research paradigms with which to create culturally inclusive science curricula. The discussants reveal their personal experiences of being marginalised by the hegemony of positivism and give voice to a range of opinions about how best to respond. The integral perspective of spiral dynamics is proposed as a model of paradigm evolution, our fundamental assumptions about modern progress are questioned, and the non-dualist logic of dialectics is explored as a more inclusive rationality for researchers. In the spirit of counter-hegemonic cultural studies, the discussants draw on their personal Buddhist and Hindu perspectives to open new doorways into complex ontological systems lying beyond the simplistic materialism of crypto-positivism. We are given a glimpse of powerful means of generating new insights into the emergent universe (within and without) that an evolving science endeavours to explain.     

Friends,foes, and self-defence: students with EBD navigating social conflicts and bullying

Students with emotional and behavioural difficulties (EBD) are more likely to struggle than their peers, which can lead to disengagement and early dropout. Although there are alternate programmes for these students, they are rarely consulted about their struggles, or about their perceived needs. The purpose of this study was to explore the lived experiences of students with EBD from their entry in mainstream classrooms to their placement in an alternate programme. During a semi-structured interview and visual mapping activity, six participants described their schooling experiences and their depictions were analysed using an interpretative phenomenological analysis. Participants described the social process of school and emphasised the importance of relationships with peers and teachers, and the challenges they experienced in these relationships, which included relational, psychological, and physical aggression. Findings highlight the need to consider the reciprocal nature of bullying for students with EBD, and its influence on their schooling.     

Critical Thinking: Art Criticism as a Tool for Analysing and Evaluating Art,Instructional Practice and Social Justice Issues

Recent educational initiatives have emphasised the importance of fostering critical thinking skills in today's students in order to provide strategies for becoming successful problem solvers throughout life. Other scholars advocate the use of critical thinking skills on the grounds that such tools can be used effectively when considering social justice issues. In this article we make the case that the teaching and learning strategies of analytic art criticism can serve as fundamental tools used not just for the study of art but can also centre critical thinking and analysis in all aspects of the art education curriculum. Our argument begins with a review of literature on the use of art criticism for critical thinking and meaning making. Then we describe our efforts to address critical thinking with our students by using the critical analysis model of art criticism and applying it to learning environments for forming reasoned judgments about teaching and learning, and also as springboard for examining social justice issues. We believe that promoting this form of affectively driven, intellectually guided critical thinking makes our students potentially more successful not just in their encounters with art and education, but also in their lives as human beings beyond school.     

Determinants for the commitment relationship maintenance between the alumni and the alma mater

This study aims to find determinants for the commitment relationship between alumni and alma mater. Based on the literature, satisfaction and image are proposed as drivers of commitment. A survey applied to 2544 alumni in a Portuguese university provides data analyzed through a structural equation modeling technique. The results present ‘image of education’, ‘image of communication’ and ‘satisfaction with social and academic environment’ as determinants of the commitment relationship, which provide important clues for the marketers’ decision-making process when developing activities geared towards alumni. This process should emphasize aspects relating to their willingness to give back, academic and relationship quality, and institutional values. Within the Higher Education market, this study underscores the need to maintain and reinforce the relationship with alumni, and contributes to the scarce Portuguese literature on alumni matters.