Home activities and cognitive skills in relation to early literacy and numeracy: testing a multifactorial model in preschoolers     

Bonifacci  Paola  Trambagioli  Nicole  Bernabini  Luca  Tobia  Valentina 《European Journal of Psychology of Education - EJPE》2022,37(3):681-705

The aim of the present study was to test environmental and cognitive variables as possible cross-domain predictors of early literacy and numeracy skills. One hundred forty-eight preschool children (mean age = 64.36 months ± 3.33) were enrolled in the study. The battery included a home literacy and home numeracy questionnaire, measures and phonological and visuo-spatial working memory, tasks tapping response inhibition, and predictors of literacy (vocabulary, phonological awareness, letter knowledge) and numeracy (magnitude comparison, number knowledge) skills. The structural equation model indicated that verbal working memory and, to a lesser extent, inhibition represented cross-domain predictors, whereas home numeracy activities and visuo-spatial working memory explained additional variance only for early numeracy skills. Implications for parents and educators are discussed.

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Mathematics professional development for elementary teachers: Building trust within a school-based mathematics education community     

Paola Sztajn  Amy J. HackenbergDorothy Y. White  Martha Allexsaht-Snider 《Teaching and Teacher Education》2007

Despite increased attention in professional development to building communities of teachers, few studies have investigated the development of trust in these communities. This paper presents issues related to trust in a professional development project at an elementary school. The project aimed for school-based elementary teachers and university-based mathematics educators to work together to improve mathematics instruction at the school by developing a mathematics education community of learners, where learners were conceived of as both the teachers and the mathematics educators. This paper addresses the following question: What factors in the project supported the development of trust among mathematics educators and teachers as the community was formed? More specifically, the paper is about one aspect of trust, namely, building school-based elementary teachers’ trust in the university-based mathematics educators. We point to three factors that helped the development of trust and we use care theory to further understand and discuss these factors in the context of in-service teacher education initiatives.  相似文献   

Epilogue for the IJSME Special Issue: Metacognition for Science and Mathematics Learning in Technology-Infused Learning Environments     

Ying-Shao Hsu  Paola Iannone  Hsiao-Ching She  Allyson F. Hadwin  Larry D. Yore 《International Journal of Science and Mathematics Education》2016,14(2):335-344

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Mathematics education in the neoliberal and corporate curriculum: the case of Brazilian agricultural high schools     

Neila de Toledo e Toledo  Gelsa Knijnik  Paola Valero 《Educational Studies in Mathematics》2018,99(1):73-87

The pedagogical principle learning by research guides the current curriculum in agricultural high schools in Brazil. A problematization of the principle shows how (1) it feeds into current neoliberal and corporate agendas in the education sector, and (2) it associates mathematical formalism and abstraction as necessary conditions for the production and use of biotechnology. Data consists of official national and institutional policy documents, as well as interviews conducted with nine former students, along with their school notebooks and tests. The theoretical and methodological framework draws on the work of Michel Foucault. It is argued that neoliberal market values are embedded in the mathematics education, through the articulation of abstract and formal reasoning with techno-scientific knowledge, for the purpose of competitive production. The learning by research principle shapes students’ subjectivities to desire becoming techno-scientificized individuals. The ethical question of the subordination of the value of mathematics education to a neoliberal, predominantly marketized logic is raised as a challenge to the role of mathematics in contemporary cultures.  相似文献   

Evaluating the Effectiveness of Modelling-Oriented Workshops for Engineering Undergraduates in the Field of Thermally Activated Phenomena     

Battaglia  Onofrio Rosario  Di Paola  Benedetto  Persano Adorno  Dominique  Pizzolato  Nicola  Fazio  Claudio 《Research in Science Education》2019,49(5):1395-1413

Research in Science Education - Two 20-h modelling-based workshops focused on the explanation of thermally activated phenomena were held at the University of Palermo, Italy, during the Academic...  相似文献   

Towards learning analytics adoption: A mixed methods study of data-related practices and policies in Latin American universities     

Isabel Hilliger  Margarita Ortiz-Rojas  Paola Pesántez-Cabrera  Eliana Scheihing  Yi-Shan Tsai  Pedro J. Muñoz-Merino  Tom Broos  Alexander Whitelock-Wainwright  Dragan Gašević  Mar Pérez-Sanagustín 《British journal of educational technology : journal of the Council for Educational Technology》2020,51(4):915-937

In Latin American universities, Learning Analytics (LA) has been perceived as a promising opportunity to leverage data to meet the needs of a diverse student cohort. Although universities have been collecting educational data for years, the adoption of LA in this region is still limited due to the lack of expertise and policies for processing and using educational data. In order to get a better picture of how existing data-related practices and policies might affect the incorporation of LA in Latin American institutions, we conducted a mixed methods study in four Latin American universities (two Chilean and two Ecuadorian). In this paper, the qualitative data were based on 37 interviews with managers and 16 focus groups with 51 teaching staff and 45 students; the quantitative data were collected through two surveys answered by 1884 students and 368 teachers, respectively. The findings reveal opportunities to incorporate LA services into existing data practices in the four case studies. However, the lack of reliable information systems and policies to regulate the use of data imposes challenges that need to be overcome for future LA adoption.  相似文献   

Multicultural Libraries' services and social integration: The case of public libraries in Montreal Canada     

M. A. Paola Picco 《Public Library Quarterly》2013,32(1):41-56

Montreal is a multicultural city, with a high percentage of immigrants where great value is given to culture. The city has a network of public libraries, which are located in the different districts. The provincial government has just opened the new Bibliothèque Nationale du Québec, which combines a national library service with those of a public library. The Bibliothèque Nationale du Québec and the public libraries in Montreal have set a goal to facilitate the integration of immigrants into Montreal society. In this context, the objective of this research is to find out to what extent the public libraries in Montreal are facilitating the integration of immigrants into society and to discover what important role the libraries actually play in this process.  相似文献   

Total Protein of Whole Saliva as a Biomarker of Anaerobic Threshold     

Miguel Sordi Bortolini Junior  Guilherme Gularte De Agostini  Ismair Teodoro Reis  Romeu Paulo Martins Silva Lamounier  Jeffrey B. Blumberg  Foued Salmen Espindola 《Research quarterly for exercise and sport》2013,84(3):604-610

Saliva provides a convenient and noninvasive matrix for assessing specific physiological parameters, including some biomarkers of exercise. We investigated whether the total protein concentration of whole saliva (TPWS) would reflect the anaerobic threshold during an incremental exercise test. After a warm-up period, 13 nonsmoking men performed a maximum incremental exercise on a cycle ergometer. Blood and stimulated saliva were collected during the test. The TPWS anaerobic threshold (PAT) was determined using the Dmax method. The PAT was correlated with the blood lactate anaerobic threshold (AT; r = .93, p < .05). No significant difference (p = .16) was observed between PAT and AT. Thus, TPWS provides a convenient and noninvasive matrix for determining the anaerobic threshold during incremental exercise tests.  相似文献   

Energy balance of locomotion with pedal-driven watercraft     

Paola Zamparo  Giuseppe Carignani  Luca Plaino  Barbara Sgalmuzzo  Carlo Capelli 《Journal of sports sciences》2013,31(1):75-81

Abstract

In this study, we examined the mechanics and energetics of locomotion with a paddle-wheel boat and a water bike. Power output ([Wdot] _tot) was measured directly on the water bike by means of an instrumented chain-ring. The simultaneous assessment of oxygen uptake ([Vdot]O₂) allowed the computation of the “overall” efficiency of locomotion (η _o = [Wdot] _tot / [Vdot]O₂). Mean η _o was 0.27 (s = 0.02), which was unaffected by the speed, and was assumed to be the same for the two boats as both are semi-recumbent bicycles. For the paddle-wheel boat, [Wdot] _tot was then obtained from η _o and measures of [Vdot]O₂. The power to overcome (passive) drag was calculated as [Wdot] _d = D · v (where D is the force measured by means of a load cell when towing the boats at given speeds). Propelling efficiency was calculated as η _p = [Wdot] _d / [Wdot] _tot, which was lower with the paddle-wheel boat (mean 0.35, s = 0.01) than with the water bike (mean 0.57, s = 0.01). The observed differences in η _p and [Wdot] _d explain why at the highest speed tested (～3 m · s^?1), the energy required to cover a unit distance with the water bike is similar to that required to move the paddle-wheel boat at 1.3 m · s^?1.  相似文献   

A spectral analysis of team dynamics and tactics in Brazilian football     

Felipe Arruda Moura  Luiz Eduardo Barreto Martins  Ricardo O. Anido  Paulo Régis C. Ruffino  Ricardo M. L. Barros  Sergio Augusto Cunha 《Journal of sports sciences》2013,31(14):1568-1577

Abstract

The purposes of this study were to characterise the total space covered and the distances between players within teams over ten Brazilian First Division Championship matches. Filmed recordings, combined with a tracking system, were used to obtain the trajectories of the players (n = 277), before and after half-time. The team surface area (the area of the convex hull formed by the positions of the players) and spread (the Frobenius norm of the distance-between-player matrix) were calculated as functions of time. A Fast Fourier Transform (FFT) was applied to each time series. The median frequency was then calculated. The results of the surface area time series median frequencies for the first half (0.63 ± 0.10 cycles · min^?1) were significantly greater (P < 0.01) than the second-half values (0.47 ± 0.14 cycles · min^?1). Similarly, the spread variable median frequencies for the first half (0.60 ± 0.14 cycles · min^?1) were significantly greater (P < 0.01) than the second-half values (0.46 ± 0.16 cycles · min^?1). The median frequencies allowed the characterisation of the time series oscillations that represent the speed at which players distribute and then compact their team formation during a match. This analysis can provide insights that allow coaches to better control the team organisation on the pitch.  相似文献