Twenty-four-hour movement behaviours and fundamental movement skills in preschool children: A compositional and isotemporal substitution analysis     

Jéssica Gomes Mota  Cain Craig Truman Clark  Luís Lemos  Cézane Priscilla Reuter  Jorge Augusto Pinto Silva Mota 《Journal of sports sciences》2020,38(18):2071-2079

ABSTRACT

Studies that have analysed the association between the different movement behaviours and fundamental movement skills (FMS) have considered it in an independent manner, disregarding the compositional nature of 24-h movement behaviours (24-h MB). The aim of this study was to investigate the relationship between the 24-h MB and FMS in preschoolers using a compositional data analysis . Two hundred and four preschoolers (4.5 ± 0.8 years old; 101 boys) provided objectively assessed physical activity (PA) and sedentary behaviour (SB) data (Actigraph wGT3X), and FMS (TGMD-2). Sleep duration (SD) was reported by parents. Association of daily composition of movement behaviours with FMS was explored using compositional analysis and isotemporal substitution (R Core Team, 3.6.1). When considered as a 24-h MB composition (PA, SB and SD), adjusted for age, BMI and sex, the composition predicted locomotor (r² = 0.31), object control (r² = 0.19), and total motor score (r² = 0.35), respectively (all P < 0.001). Reallocation of time from light to moderate-to-vigorous PA was associated with greatest positive changes in total motor score. Achieving adequate balance between movement behaviours over the 24-h period, and its relationship with locomotor and object control skills should be considered and further investigated in early childhood.  相似文献   

Computing the topology of an arrangement of implicitly defined real algebraic plane curves     

Jorge Caravantes  Laureano Gonzalez-Vega 《浙江大学学报(A卷英文版)》2008,9(12):1685-1693

We introduce a new algebraic approach dealing with the problem of computing the topology of an arrangement of a finite set of real algebraic plane curves presented implicitly. The main achievement of the presented method is a complete avoidance of irrational numbers that appear when using the sweeping method in the classical way for solving the problem at hand. Therefore, it is worth mentioning that the efficiency of the proposed method is only assured for low-degree curves.  相似文献   

Evolution and Creationism: Views of Students in a Colombian University—Findings from 7 Years of Data Using a Three-Question Survey     

Archila  Pablo Antonio  Molina  Jorge 《Research in Science Education》2020,50(4):1619-1638

Research in Science Education - The theory of evolution is the backbone of the biological sciences. Arguably, this is the reason why evolution education is an extensively investigated issue in...  相似文献   

Simulation framework for teaching in modeling and simulation areas     

Marisa Raquel De Giusti  Ariel Jorge Lira  Gonzalo Luján Villarreal 《European Journal of Engineering Education》2008,33(5-6):587-596

Simulation is the process of executing a model that describes a system with enough detail; this model has its entities, an internal state, some input and output variables and a list of processes bound to these variables. Teaching a simulation language such as general purpose simulation system (GPSS) is always a challenge, because of the way it executes the models and the abstraction level it can achieve, very different compared with most well-known programming languages. This article presents an open source simulation framework that implements a subset of entities of GPSS, which could help students to improve the understanding of this language. This tool also stores all entities of simulations in every single simulation time, which is very useful for debugging simulations, but also for getting a detailed history of all entities in the simulations, knowing exactly how they have behaved in every simulation time.  相似文献   

An exploratory study on the emergency remote education experience of higher education students and teachers during the COVID-19 pandemic     

Gabriella Oliveira  Jorge Grenha Teixeira  Ana Torres  Carla Morais 《British journal of educational technology : journal of the Council for Educational Technology》2021,52(4):1357-1376

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Critical Chinese as an Additional Language education in Australia: A journey to voices,courage and hope     

Wen Xu  Jorge Knijnik 《British Educational Research Journal》2021,47(6):1635-1651

This article addresses key topics of Chinese as an Additional Language (CAL) education and classroom pedagogical practices. It reports on a 3-year ethnographic study within Australian schools to discuss dialogic pedagogical practices and students’ aspirations. Based on Freire’s conceptualisation of conscientização and banking education, the purpose of this article is therefore to unpack a journey to voices, courage and hope of a cohort of socially, linguistically and economically disadvantaged students in Western Sydney, one of the most culturally diverse regions in the country. Their experiences, responses, dreams and understanding of CAL education in multicultural Australia were thus captured. Our data shows that critical CAL education might point to some avenues for the educational equity agenda. By arguing that emancipatory and critical practices could enhance students to achieve consciousness and collective self-transformation, we aim to make a contribution to the literature on CAL and languages education, which all too often isolates from broader issues in educational theory. The article also adds to the limited research that engages with CAL classroom data. Our critical approach to CAL education illuminates the intersections between language and social inclusion. Considering the worldwide growing upheaval and scepticism around CAL education, we call for writing inclusive languages education and related pedagogical practices into the social inclusion agenda in Australia and internationally, for the teaching and learning of all additional languages.  相似文献   

Towards Covid-19 Literacy     

Archila  Pablo Antonio  Danies  Giovanna  Molina  Jorge  Truscott de Mejía  Anne-Marie  Restrepo  Silvia 《Science & Education》2021,30(4):785-808

Covid-19 literacy, induced by the coronavirus disease (2019), is characterized as the understanding of Covid-19 as well as informed decisions based upon this understanding. This type of literacy is closely related to health literacy, scientific literacy, and scientific media literacy. It may be obvious to say that Covid-19 literacy is a key factor for governments to effectively manage the Covid-19 transition. However, lack of literature exists about Covid-19 literacy among university students. Therefore, the current study aimed to determine the Covid-19 literacy level among 4168 students from a Colombian university. The data were derived from students’ responses to a 25–item anonymous online self-reporting questionnaire. We found that 21–25-year age group, graduate students,?students enrolled prior to 2015, and medical students had a significantly higher mean score. Moreover, the Internet (86.8%) was the most popular source of information from which participants gained most information regarding Covid-19. Furthermore, 58.5% of the participants considered health workers as a source that can provide accurate information. Most importantly, the findings reveal the students’ knowledge about (1) the role of an eventual process of vaccination, (2) the test currently used as diagnostic for Covid-19, and (3) the fatality rate, three aspects of Covid-19 literacy that deserve more attention. The findings provide a useful basis for the formulation of policies and concrete actions in improving Covid-19 literacy.

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Teaching future teachers basic astronomy concepts—seasonal changes—at a time of reform in science education     

Ricardo Trumper 《科学教学研究杂志》2006,43(9):879-906

Bearing in mind students' misconceptions about basic concepts in astronomy, the present study conducted a series of constructivist activities aimed at changing future elementary and junior high school teachers' conceptions about the cause of seasonal changes, and several characteristics of the Sun–Earth–Moon relative movements like Moon phases, Sun and Moon eclipses, and others. The activities and results concerning the cause of seasonal changes are reported. Both the experimental class and the control groups improved their grasp of basic astronomy concepts statistically significantly, although the experimental class made the most impressive progress of all. Regarding subjects relevant to this study (seasonal changes), only the experimental class showed a statistically significant improvement, which justifies the constructivist approach. We conclude that in implementing a reform in the science curriculum, the change has to include the subjects taught and also the way they are taught. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 43: 879–906, 2006  相似文献   

The formation of the academic counsellor     

Ricardo Blanco-Beledo 《International journal for the advancement of counseling》1982,5(4):291-299

Conclusion A detailed and exact evaluation of this program of Teacher Formation and of theactivities of academic counsellors is presently underway. We expect to have theresults by the middle of 1982. Nevertheless, partial evaluations of differentteaching and counselling activities show that there has been a change in the conceptionof what education is, development of aptitudes and attitudes and a profoundimprovement in the teaching quality.  相似文献   

Teacher salaries in Latin America: A review     

George Psacharopoulos  Jorge Valenzuela  Mary Arends 《Economics of Education Review》1996,15(4):401-406

In this paper we use data from household surveys of 12 Latin American countries to assess how teacher salaries compare to workers in other occupations. The results show great variability from one country to another, ranging from an apparent underpayment of teachers in Bolivia by 35% relative to the control group, and a respective overpayment of 65% in Colombia. However, when statistical controls are introduced for the differential education, hours worked and gender composition between teachers and the comparison group, much of the earnings differential between the two groups disappears. On the basis of this finding, we cannot support the position that teachers are either overpaid or underpaid.  相似文献