Enseñanza de las ideas principales: problemas en el paso de la teoria a la práctica

Dno de los sueños de todo educador es encontrar conceptos o métodos que sean a la vez poderosos y extremadamente simples. La «idea principal» se ha presentado como una de estas panaceas que permite construir estrategias de comprensión lectora adecuadas a los relativamente complejos modelos cognitivos, mediante un procedimiento de atractiva sencillez. En este artículo se aborda uno de los problemas más importantes y menos tratados de este prometedor enfoque. La propia denominación de «la idea principal» supone la existencia de un única idea principal y la univocidad de ésta: todo el mundo convendrá en una única y misma idea, la del maestro será la misma a la de cada uno de los alumnos.

El problema planteado por los autores de que este supuesto no se realiza (hay divergencias fuertes en la identificación de la idea) abre vías menos simplistas pero quizá más atractivas a la enseñanza desde «la idea principal».     

西班牙中国移民:历史、发展及现状

本文从历史、发展、现状等方面简要谈谈西班牙的中国移民.     

El desarrollo de las acciones de memoria

Resumen

Se hace una revisión de las investigaciones soviéticas y occidentales sobre el desarrollo de las acciones de memoria (estrategias en la terminología occidental). La distinción entre actividades y procesos de memorización no deliberada y actividades y procesos de memorización deliberada facilita la integración de las aportaciones de ambas vías de investigación, soviética y occidental. En todo el desarrollo de las acciones de memoria, el aspecto central es la adquisición de control por parte del sujeto (control que va transfiriéndose del adulto al niño de forma gradual) que culmina con la constitución del sistema ejecutivo de control de la memoria. Se afirma, finalmente, que el concepto de Zona de Desarrollo Próximo de Vigotsky permite caracterizar este desarrollo de modo más realista y complejo que la noción de deficiencia de producción.     

National Science Foundation Patronage of Social Science, 1970s and 1980s: Congressional Scrutiny, Advocacy Network, and the Prestige of Economics

Research in the social sciences received generous patronage in the late 1960s and early 1970s. Research was widely perceived as providing solutions to emerging social problems. That generosity came under increased contest in the late 1970s. Although these trends held true for all of the social sciences, this essay explores the various ways by which economists in particular reacted to and resisted the patronage cuts that were proposed in the first budgets of the Reagan administration. Economists?? response was three fold: to engage in joint lobbying with other social scientists, to tap into their authority as a respected policy player, and to influence the types of research financed by the patron. With interviews of the former lobbyist for the social scientists, the former director of the Economics program for the National Science Foundation, and a review of the archival records of economists and their scholarly society, we discuss how economists have claimed entitlement to patronage in the closing decades of the twentieth century. We observe a dynamic and productive relationship between politicians and researchers mediated by the National Science Foundation, where civil servants, lobbyist and public minded scientists, and self-serving grantees trade roles.     

Sticky information and heterogeneous needs as determining factors of R&D cooperation with customers

The aim of this work is to investigate the factors determining cooperation in developing innovations between firms and a specific group of agents, customers and users. The central point of the analysis is two variables recognised in previous studies as important factors in the study of cooperation with these agents, but which basically have been dealt with from a purely theoretical viewpoint. These variables are: (1) the existence of sticky information (information which is costly to obtain, transfer and use) and (2) the presence of heterogeneous needs in the market. Regarding the first variable, we have also taken into account two kinds of information which can be sticky: information on needs and information of technological nature. The findings obtained, using a Spanish sample of firms, show clearly that all these three factors exert a positive influence on cooperative relationships with these agents.     

ACED IT: A tool for improved ethical and moral decision-making

Numerous examples of unethical organizational decision-making highlighted in the media have led many to question the general moral perception and ethical judgments of individuals. The present study examined two forms of a straightforward ethical decision-making (EDM) tool (ACED IT cognitive map) that could be a relatively simple instrument for organizations to improve the moral and EDM of its members. Results revealed that participants utilizing either form of ACED IT were more likely to identify a moral dilemma than were control participants. Additionally, participants in the modified condition responded differently to the situation. Implications and other findings are discussed.     

The role of letter knowledge acquisition ability on children's decoding and word identification: Evidence from an artificial orthography

Background

Letter knowledge is crucial in the first stages of reading development. It supports learning letter-sound mappings and the identification of the letters that make up words. Previous studies have investigated the longitudinal impact of early letter knowledge on children's further word reading abilities. This study employed an artificial orthography learning paradigm to explore whether the rate of letter learning modulates children's reading and word identification skills.

Methods

In an initial training phase, 8-year-old Spanish children (N = 30) learned nine artificial letters and their corresponding sounds (two vowels and six consonants). The letter learning rate was set according to the number of attempts needed to name at least seven letters (i.e., 80% correct). These ranged from 1 to 4. In a second training phase, children visualized words made up of the trained letters while listening to their pronunciations. Some words included a context-dependent syllable (i.e., leading to grapheme-to-phoneme inconsistency), and others had an inconsistent syllable (i.e., phoneme-to-grapheme inconsistency). The post-test consisted of a reading aloud task and an orthographic-choice task in which the target word was presented with a distractor equal to the target except for the substitution of a letter.

Results

Children showed a high accuracy rate in the post-test tasks, regardless of whether words contained context-dependent or inconsistent syllables. Critically, the letter learning rate predicted both reading aloud and identification accuracy of words in the artificial orthography.

Conclusions

We provide evidence for the vital role of letter knowledge acquisition ability in children's decoding and word identification skills. Training children on this ability facilitates serial letter-sound mapping and word identification skills. Artificial orthography paradigms are optimal for exploring children's potential to achieve specific literacy skills.