Science Learning: A path analysis of its links with reading comprehension,question-asking in class and science achievement     

Francisco Cano  Ángela García  A.B.G. Berbén  Fernando Justicia 《International Journal of Science Education》2013,35(10):1710-1732

The purpose of this research was to build and test a conceptual model of the complex interrelationships between students' learning in science (learning approaches and self-regulation), their reading comprehension, question-asking in class and science achievement. These variables were measured by means of a test and a series of questionnaires administered to 604 ninth-grade students, and the data collected were analysed using a correlational, cross-sectional design. Results of a path analysis indicated that (a) students’ self-regulated and intentional knowledge-constructing activity (self-regulated strategy use, deep approach and knowledge-building) were what chiefly accounted for their question-asking in class; (b) question-asking (high and low levels) was related directly to reading comprehension and indirectly, through its contribution to the this, to academic achievement; (c) reading comprehension was directly and negatively associated with surface approach and indirectly and positively related to deep approach and knowledge-building; and (d) some of these variables, particularly reading comprehension, accounted for academic achievement in science. This model explained nearly 30% of the variance in academic achievement and provided a substantial and distinctive insight into the web of interrelationships among these variables. Implications for future research and science teaching and learning are discussed (e.g. the importance of supporting students' efforts to learn science in a meaningful, active and self-regulated way and of improving their reading comprehension).  相似文献   

Teaching and learning about human nutrition: a constructivist approach     

Enrique Banet  Francisco Núñez 《International Journal of Science Education》2013,35(10):1169-1194

The results of a constructivism‐based teaching programme on human nutrition for students in the second year of secondary education (13‐ and 14‐year‐olds) are analysed in light of the ideas held by the students before and after implementation of the programme. The results show how most of the students who participated in this programme reorganized their ideas concerning the nutritional process and achieved a fuller understanding of how nutrition comprises a series of related and integrated processes. Other students, who followed a more conventional method based on the teacher explanation and textbooks, tended to have erroneous or incomplete ideas concerning the nutritional process.  相似文献   

Correlation between variables subject to an order restriction,with application to scientometric indices     

Miguel A. García-Pérez  Vicente Núñez-Antón 《Journal of Informetrics》2013,7(2):542-554

Variables subject to an order restriction, for instance Y ≤ X, have a bivariate distribution over a non-rectangular joint domain that entails a non-null and potentially large structural relation even if the variables show no association (in the sense that particular ranges of values of X do not co-occur with particular ranges of values of Y). Order restrictions affect a number of scientometric indices (including the h index and its variants) that are routinely subjected to correlational analyses to assess whether they provide redundant information, but these correlations are contaminated by the structural relation. This paper proposes an alternative definition of association between variables subject to an order restriction that eliminates their structural relation and reverts to the conventional definition when applied to variables that are not subject to order restrictions. This alternative definition is illustrated in a number of theoretical cases and it is also applied to empirical data involving scientometric indices subject to an order restriction. A test statistic is also derived which allows testing for the significance of an association between variables subject to an order restriction.  相似文献   

Critical Media Review: Precious Knowledge: Arizona’s Battle Over Ethnic Studies     

José García 《The Urban Review》2013,45(1):94-97

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Analysis of a Quasi-Experimental Design Based on Environmental Problem Solving for the Initial Training of Future Teachers of Environmental Education     

Emilia I. De La Fuente  F. Javier Perales  Juan García 《The Journal of environmental education》2013,44(2):19-21

Abstract

Many parameters may be used to measure the deterioration of water quality. One very important parameter is total dissolved solids (TDS). An increase in TDS beyond acceptable levels can have a significant impact on municipal, industrial, and agricultural use of water. In this review an overview of the problem of high TDS levels is given. Factors related to TDS which are considered include: (a) laboratory determination, (b) natural and man-influenced sources, (c) adverse effects, and (d) treatment process removal techniques. A brief summary of the TDS problem associated with the Colorado River is also considered.  相似文献   

Crítica y alternativas al aprovechamiento de las aulas de educación especial en los colegios nacionales de E.G.B.     

Mireia García-Cairó Alsina 《Infancia y Aprendizaje》2013,36(10):121-122

RESUMEN

La idea del Ministerio de Educación es que existen niños con alguna “deficiencia clínica” pero recuperables, y para estos niños se ha previsto la existencia del aula de transición dentro de la escuela para “niños normales” como vía de integración. Pero estas aulas han sido creadas sin ningún criterio lógico (en ellas encontramos niños con deficiencias psíquicas leves, con problemas de sociabilidad, con dificultades en el aprendizaje,…) y sin ninguna orientación determinada. En definitiva, se convierten en lugares de perpetua marginación. Para paliar la situación actual serían necesarias unas condiciones mínimas: dotar a la escuela de los medios necesarios para prevenir y tratar deficiencias; y la necesidad de que sean psicólogos los que ocupen las vacantes de esas aulas de educación especial, trabajando al mismo tiempo con el profesorado en las tareas del centro.  相似文献   

El consumo en las enseñanzas medias y preuniversitarias     

María Teresa García 《Infancia y Aprendizaje》2013,36(35-36):175-194

Resumen

Desde un Instituto de Bachillerato se propone una programación que contempla diversos aspectos relacionados con el Consumo y que tiende a estimular una actitud consciente y analítica desde la vida escolar. Se desarrolla en torno a las asignaturas del Seminario de Ciencias Naturales, aunque propicia frecuentes relaciones multidisciplinares.  相似文献   

Modificación de los hábitos de estudio a través de técnicas de autorregulación: estudio de un caso     

V. Luis Pantoja  S. Enrique Arce  O. Dolores García  O. Ana García  G. Iosune Elorduy 《Infancia y Aprendizaje》2013,36(42):97-109

Resumen

El propósito de este estudio fue diseñar un modelo válido para la adquisición de unos adecuados hábitos de estudio, basado en una combinación de estrategias de autorregulación y técnicas de estudio. Se procedió mediante un diseño exploratorio de línea de base múltiple, con un único sujeto que incluía: a) fase de pretest, b) primera fase de intervención, en la que se introdujeron las estrategias de autorregulación, c) segunda fase de intervención o de introducción de las técnicas de estudio, y d) fase de postest. El resultado fue un cambio experimental y terapéuticamente significativo en los hábitos de estudio y en las conductas exponentes de: tiempo de estudio, desatención, y velocidad y comprensión lectoras, las calificaciones experimentaron un ascenso progresivo. Estos cambios se mantuvieron y consolidaron en el seguimiento, las estrategias de autorregulación se han mostrado útiles para aumentar la probabilidad de ocurrencia de la conducta deseada y disminuir la de la no deseada.  相似文献   

Support for self-regulation in learning complex topics from multimedia explanations: do learners need extensive or minimal support?     

Héctor García Rodicio  Emilio Sánchez  Santiago R. Acuña 《Instructional Science》2013,41(3):539-553

Acquiring complex conceptual knowledge requires learners to self-regulate their learning by planning, monitoring, and adjusting the process but they find it difficult to do so. In one experiment, we examined whether learners need broad systems of support for self-regulation or whether they are also able to learn with more economical support configurations. Eighty-six undergraduate students with little prior domain knowledge learned plate tectonics from a multimedia presentation involving animation with concurrent narration and support in one of four forms: minimal support, two variants of intermediate support, or extensive support. After the presentation, participants solved retention and transfer tests. The results revealed that participants receiving the broadest system of support outperformed those in the other conditions, which did not differ from one another. This means that it is so difficult for learners to self-regulate learning that they need considerable support if they are to learn complex conceptual knowledge.  相似文献   

Making the development of technological innovations more efficient: An exploratory analysis in the biotechnology sector     

Fernando E. García-Muiña  Eva Pelechano-Barahona  José E. Navas-López 《The Journal of High Technology Management Research》2009,20(2):131-144

The current study analyzes the processes involved in obtaining technological innovations. Conclusive results are lacking in the literature, so this work defines and empirically tests a model of the relations between the firm's innovative capacity and the different ways of accumulating knowledge and the decision whether or not to codify it. Also, the model takes into account whether the innovations obtained are radical or incremental.The empirical study uses a sample of Spanish biotechnology firms, and the results show that accumulating knowledge using internal sources and not codifying it significantly improves the firm's capacity to develop radical innovations. The results also show that knowledge codification speeds up the development of incremental innovations. The relation between incremental innovations and the sources of knowledge is not so clear, although the results suggest the possible existence of a nonlinear relation between the two variables.  相似文献