Digital illiteracy: a challenge for 21st century teachers / El analfabetismo digital: un reto de los docentes del siglo XXI     

Beatriz Cortina-Pérez  Miguel Á. Gallardo-Vigil  M. Ángeles Jiménez-Jiménez  Juan M. Trujillo-Torres 《Cultura y Educación》2013,25(2):231-264

Resumen

El aprendizaje de la química requiere dominar los diferentes códigos mediante los que se representa gráficamente la organización espacial de las moléculas. Los alumnos deben no sólo aprender la nomenclatura de esos sistemas de representación, sino también sus reglas sintácticas, siendo capaces de traducir de un código o lenguaje a otro, y de decidir cuándo y con qué metas deben usar cada uno de esos sistemas de representación. Para investigar cómo proceden y qué dificultades tienen estudiantes universitarios de química para usar esos sistemas de representación realizamos dos estudios. En total participaron 201 estudiantes universitarios, 174 estudiantes argentinos de un primer curso de química orgánica y 27 estudiantes españoles de la carrera de Psicología, que respondieron a tareas escritas diseñadas específicamente para esta investigación.

Los resultados mostraron que en general los estudiantes de química utilizan los diferentes sistemas de representación de forma adecuada. Sin embargo, aunque son eficaces en los procesos de traducción, no lo son en cuanto a su uso estratégico dependiente del marco teórico-conceptual. Por otra parte, al presentarles en el segundo estudio una tarea sin contenido químico, pero gráficamente isomorfa a las tareas químicas, los estudiantes de química, a diferencia de los de psicología, cometían errores característicos como consecuencia de interpretar el problema con una tarea dentro de un sistema representacional químico. Se discuten también algunas de las implicaciones de los resultados para el aprendizaje y la enseñanza de la química en la universidad.  相似文献   

Technical and physical match performance of teams in the 2018 FIFA World Cup: Effects of two different playing styles     

Qing Yi  Miguel A. Gómez  Lei Wang  Guohu Huang  Hengliang Zhang 《Journal of sports sciences》2013,31(22):2569-2577

ABSTRACT

In order to investigate the effect of playing styles on the match performance of football teams, data were analysed on 18 technical performance-related variables and 8 physical performance-related variables from 59 matches in the 2018 FIFA World Cup. A k-means cluster analysis was conducted to classify all match observations into two clusters of tactical approach in order to identify the playing styles of teams (characterised as direct-play, possession-play and mixed-play). Separate Poisson regression models were run in the generalised mixed linear modelling to examine the differences in technical and physical performance between teams classified as using different playing styles when facing different opponents. Results showed that possession-play characterised teams achieved higher values in all the variables related to goal scoring, attacking and passing (ES: 0.32 ~ 1.27) and covered more distance in sprints and high-intensity running (ES: 0.33 ~ 0.47) than direct-play characterised teams. Both possession- and direct-play characterised teams achieved higher values in passing, pass accuracy and delivery into the attacking third playing against direct-play characterised teams than playing against possession-play characterised sides (ES: 0.22 ~ 0.98). These findings may provide insights into the establishment of performance profiles of teams with different tactical styles and the development of specific training drills to optimise playing style.  相似文献   

The Distant Other     

Miguel Franquet Santos Silva  Elena Real Rodríguez  Ana Beriain Bañares  María del Mar López Talavera 《Journalism Practice》2017,11(5):592-605

This study analyses the representation of immigrants in four Spanish national newspapers, El País, El Mundo, La Razón and ABC, between 1 June 2013 and 31 June 2014. Seven days per month were randomly selected, each corresponding to a different day of the week; 91 editions of each paper, 364 in total, were analysed. Of the 289 items relating to immigrants, 179 in which one or more photographs appeared in addition to text were chosen for analysis. Among the main results, two stand out: first, immigrants do not usually have an opportunity to communicate directly with readers and, secondly, the treatment of news items on immigration by the four Spanish newspapers is variable.  相似文献   

Influence of subject matter setting on comprehension monitoring     

Eduardo García-Arista  Juan Miguel Campanario  José Otero 《European Journal of Psychology of Education - EJPE》1996,11(4):427-441

Research on the influence of subject matter setting on comprehension monitoring by secondary school students is reported in this article. Subjects were led to believe that they were reading passages from a science textbook in a science class or, alternatively, from a newspaper in a language class. Comprehension monitoring was expected to diminish in a situation in which information was acquired from a scientific source, in a science class, when compared to a situation in which information was acquired from a less authoritative source, like a newspaper, in a language class. Comprehension monitoring was measured by analyzing subjects' responses to a questionnaire and their written recall of several contradictory texts. Contrary to what was expected, evaluation and regulation of comprehension increased in the science setting. It was concluded that comprehension monitoring is dependent on subject matter setting, and that science education has a beneficial effect on this variable.  相似文献   

Video for teaching: classroom use,instructor self-production and teachers’ preferences in presentation format     

José Miguel Santos Espino  María Dolores Afonso Suárez  Juan José González-Henríquez 《Technology, Pedagogy and Education》2020,29(2):147-162

ABSTRACT

This study explores the use of digital videos in education, from the perspective of the teacher as an agent of technological integration. Secondary and university teachers were surveyed in a region-wide case study. Three topics were specifically surveyed: common uses of digital video in teaching, instructor self-production of educational videos, and preferences in common presentation formats (chalk-and-talk, screencast, PowerPoint, demonstration and whiteboard writing). Results show that secondary teachers make more use of digital video and are more innovative than university teachers. Video self-production is scarce, though respondents declare a positive attitude, with time constraints and technical qualification as main reported obstacles. Preferences in video presentation formats reveal notable differences between secondary and university teachers for some formats. Preferences are also moderately influenced by the teacher’s knowledge field, and by experience with ICT and video production.  相似文献   

Quality Street: encountering higher education’s accountabilities     

Peodair Leihy  José Miguel Salazar 《Quality in Higher Education》2017,23(1):3-19

This article offers a new approach to quality, focusing on the dimensions that gather around it. The mismatched goals of controlling and improving higher education continue to trouble the conceptual clarity of accountability. Quality in higher education emerges as something agreed upon (to varying efficacy) through accountability measures, rather than dictated or scheduled. A concept of purchase (the connectedness of accountability with quality) informs discussion. Following an overview of what quality means logically and in the operational context of high rates of access to and participation in higher education, the argument proceeds to a schema of complementary types, or personages, of accountability (transactional, political, bureaucratic, institutional and disciplinary). Throughout, the desire to be viewed well and self-awareness interplay, rendering the various approaches to quality assurance presences to be acknowledged in their own right.  相似文献   

Automatic laboratory-based strategy to improve the diagnosis of type 2 diabetes in primary care     

Maria Salinas  Maite López-Garrigós  Emilio Flores  Maria Leiva-Salinas  Javier Lugo  Francisco J Pomares  Alberto Asencio  Miguel Ahumada  Carlos Leiva-Salinas 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2016,26(1):121-128

Introduction

To study the pre-design and success of a strategy based on the addition of hemoglobin A1c (HbA1c) in the blood samples of certain primary care patients to detect new cases of type 2 diabetes.

Materials and methods

In a first step, we retrospectively calculated the number of HbA1c that would have been measured in one year if HbA1c would have been processed, according to the guidelines of the American Diabetes Association (ADA). Based on those results we decided to prospectively measure HbA1c in every primary care patient above 45 years, with no HbA1c in the previous 3 years, and glucose concentration between 5.6-6.9 mmol/L, during an 18 months period. We calculated the number of HbA1c that were automatically added by the LIS based on our strategy, we evaluated the medical record of such subjects to confirm whether type 2 diabetes was finally confirmed, and we calculated the cost of our intervention.

Results

In a first stage, according to the guidelines, Hb1Ac should have been added to the blood samples of 13,085 patients, resulting in a cost of 14,973€. In the prospective study, the laboratory added Hb1Ac to 2092 patients, leading to an expense of 2393€. 314 patients had an HbA1c value ≥ 6.5% (48 mmol/mol). 82 were finally diagnosed as type 2 diabetes; 28 thanks to our strategy, with an individual cost of 85.4€; and 54 due to the request of HbA1c by the general practitioners (GPs), with a cost of 47.5€.

Conclusion

The automatic laboratory-based strategy detected patients with type 2 diabetes in primary care, at a cost of 85.4€ per new case.Key words: type 2 diabetes, HbA1c, diagnosis, preanalytical phase, test request appropriateness, costs, cost analysis  相似文献   

Social constructs regarding the physical and sexual energy of whites,indigenous South Americans and blacks in Spanish and Colombian primary school reading books between 1900 and 1960*     

Federico Guillermo Serrano-López  Miguel Somoza-Rodríguez 《History of education》2017,46(5):578-594

This article analyses the manner in which the physical and sexual energy of the white, native South American and black populations was represented in reading books for elementary school children in Spain and Colombia between 1900 and 1960. Ninety reading books from representative authors were examined. It was found that the ideal of extraordinary physical vigour attributed to the white male was decisive in justifying Spanish imperialism, the superiority of the male in the patriarchal family and the intervention of authorities in administering people’s bodies. In the case of Spanish texts, the might attributed to the white race was shown as having a motive of pride, whereas in the Colombian case, the mixture with Native Americans and blacks tended to be used as an explanation for the ‘weakness’ of Colombians. Evidence is also found of the way in which education was implicitly conceived as a process of cultural ‘whitening’.  相似文献   

Exploring the derivative suffix frequency effect in Spanish speaking children     

Miguel Lázaro  Joana Acha  Saray de la Rosa  Seila García  Javier Sainz 《Reading and writing》2017,30(1):163-185

This study was designed to examine the developmental course of the suffix frequency effect and its role in the development of automatic morpho-lexical access. In Spanish, a highly transparent language from an orthographic point of view, this effect has been shown to be facilitative in adults, but the evidence with children is still inconclusive. A total of 90 2nd, 4th and 6th grade children performed a go/no go lexical decision task, with words containing either high or low frequency suffixes. Results showed significant main effects for grade and for derivative suffix frequency, with no interaction between both. This finding suggests that the suffix frequency effect emerges very early in reading development and that its role is well established from the beginning of reading experience, suggesting that sensitivity to suffix frequency can be a good predictor of a child’s ability to internalize orthographic regularities at an early stage. These findings are interpreted in the light of previous evidence paying special attention to orthographic transparency and morpheme regularity in Spanish language.  相似文献   

Having Fun Doing Math: Text Messages Promoting Parent Involvement Increased Student Learning     

Macarena Santana  Miguel Nussbaum  Raimundo Carmona  Susana Claro 《Journal of research on educational effectiveness》2019,12(2):251-273

There is a consensus that family involvement is key to academic achievement. However, it is often difficult to keep parents involved, particularly when they lack the time or academic knowledge. The aim of this study is to evaluate the impact on achievement in mathematics among adolescent children when involving parents from low-income communities in the learning process. This involvement is achieved through activities that do not include any formal curricular content. A randomly selected group of parents was nudged, via text message (SMS), to complete short and simple weekly activities with their children. The teacher then connected these activities to the curricular content in class. The results reveal that, on average, the intervention increased the students’ math grade point average (GPA) by 0.488 standard deviations (p?相似文献