Developing Children's Understanding of Fractions: An Intervention Study     

Florence Gabriel  Frédéric Coché  Dénes Szucs  Vincent Carette  Bernard Rey  Alain Content 《Mind, Brain, and Education》2012,6(3):137-146

Fractions constitute a stumbling block in mathematics education. To improve children's understanding of fractions, we designed an intervention based on learning‐by‐doing activities, which focused on the representation of the magnitude of fractions. Participants were 292 Grade 4 and 5 children. Half of the classes received experimental instruction, while the other half pursued their usual lessons. For 10 weeks, they played five different games using cards representing fractions (e.g., Memory and Blackjack). Wooden disks helped them represent and manipulate fractions while playing games. Our results showed an improvement in the conceptual understanding of fractions. The findings confirmed that the usual practice in teaching fractions is largely based on procedural knowledge and provides only minimal opportunities for children to conceptualize the meaning and magnitude of fractional notations. Furthermore, our results demonstrate that a short intervention inducing children to manipulate, compare, and evaluate fractions improves their ability to associate fractional notations with numerical magnitude.  相似文献   

Identifying high-functioning dyslexics: is self-report of early reading problems enough?     

Deacon SH  Cook K  Parrila R 《Annals of dyslexia》2012,62(2):120-134

We used a questionnaire to identify university students with self-reported difficulties in reading acquisition during elementary school (self-report; n=31). The performance of the self-report group on standardized measures of word and non-word reading and fluency, passage comprehension and reading rate, and phonological awareness was compared to that of two other groups of university students: one with a recent diagnosis (diagnosed; n=20) and one with no self-reported reading acquisition problems (comparison group; n=33). The comparison group outperformed both groups with a history of reading difficulties (self-report and diagnosed) on almost all measures. The self-report and diagnosed groups performed similarly on most tasks, with the exception of untimed reading comprehension (better performance for diagnosed) and reading rate (better performance for self-report). The two recruitment methods likely sample from the same underlying population but identify individuals with different adaptive strategies.  相似文献   

Does the social working environment predict beginning teachers’ self-efficacy and feelings of depression?     

Christelle Devos  Vincent Dupriez Léopold Paquay 《Teaching and Teacher Education》2012,28(2):206-217

We investigate how the social working environment predicts beginning teachers’ self-efficacy and feelings of depression. Two quantitative studies are presented. The results show that the goal structure of the school culture (mastery or performance orientation) predicts both outcomes. Frequent collaborative interactions with colleagues are related to higher self-efficacy only when the novices are experiencing few difficulties or work in an environment oriented towards mastery goals. The mere occurrence of mentoring and meetings with the principal is not related to the outcomes, but the quality of these activities predicts them significantly. Conditions increasing the effectiveness of these support activities are discussed.  相似文献   

Math fluency is etiologically distinct from untimed math performance, decoding fluency, and untimed reading performance: evidence from a twin study     

Petrill S  Logan J  Hart S  Vincent P  Thompson L  Kovas Y  Plomin R 《Journal of learning disabilities》2012,45(4):371-381

The authors examined whether math fluency was independent from untimed math and from reading using 314 pairs of school-aged twins drawn from the Western Reserve Reading and Math Projects. Twins were assessed through a 90-min home visit at approximately age 10 and were reassessed in their homes approximately 1 year later. Results suggested that the shared environment and genetics influenced the covariance among math fluency, untimed math measures, and reading measures. However, roughly two thirds of the variance in math fluency was independent from untimed math measures and reading, including reading fluency. The majority of this independent variance was the result of genetic factors that were longitudinally stable across two measurement occasions. These results suggest that math fluency, although related to other math measures, may also be a genetically distinct dimension of mathematics performance.  相似文献   

Using asynchronous electronic surveys to help in‐class revision: A case study     

Vincent C. H. Tong 《British journal of educational technology : journal of the Council for Educational Technology》2012,43(3):465-473

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Child maltreatment deaths in the U.S. National Child Death Review Case Reporting System     

Vincent J. Palusci  Theresa M. Covington 《Child abuse & neglect》2014

Comprehensive reviews of child death are increasingly conducted throughout the world, although limited information is available about how this information is systematically used to prevent future deaths. To address this need, we used cases from 2005 to 2009 in the U.S. National Child Death Review Case Reporting System to compare child and offender characteristics and to link that information with actions taken or recommended by review teams. Child, caretaker, and offender characteristics, and outcomes were compared to team responses, and findings were compared to published case series. Among 49,947 child deaths from 23 states entered into the Case Reporting System during the study period, there were 2,285 cases in which child maltreatment caused or contributed to fatality. Over one-half had neglect identified as the maltreatment, and 30% had abusive head trauma. Several child and offender characteristics were associated with specific maltreatment subtypes, and child death review teams recommended and/or planned several activities in their communities. Case characteristics were similar to those published in other reports of child maltreatment deaths. Teams implemented 109 actions or strategies after their review, and we found that aggregating information from child death reviews offers important insights into understanding and preventing future deaths. The National Child Death Review Case Reporting System contains information about a large population which confirms and expands our knowledge about child maltreatment deaths and which can be used by communities for future action.  相似文献   

The invention of counting: the statistical measurement of literacy in nineteenth-century England     

David Vincent 《比较教育学》2014,50(3):266-281

This article examines the invention of counting literacy on a national basis in nineteenth-century Britain. Through an analysis of Registrar Generals' reports, it describes how the early statisticians wrestled with the implications of their new-found capacity to describe a nation's communications skills in a single table and how they were unable to escape their model of a society of isolated individuals divided into the literate and illiterate. The continuing influence of this approach is traced in the recent report from the Organisation for Economic Co-operation and Development's (OECD) Programme for the International Assessment of Adult Competencies (PIACC).  相似文献   

Educational quasi-markets,school effectiveness and social inequalities     

Xavier Dumay  Vincent Dupriez 《教育政策杂志》2014,29(4):510-531

Over the past few decades, the figure of the market has clearly made its way into the field of education. For some authors, it represents an alternative to regulation by the public authorities, a different form of co-ordination which is better able to meet the objectives of the education systems. Through a secondary analysis of the PISA 2006 database, we test this hypothesis, as well as an alternative one which suggests that the quasi-market, rather than being linked positively to effectiveness of the education systems, would be associated with the students’ achievement dependence on their socio-economic and cultural background and on the social composition of the school they are enrolled in. Our findings suggest that the quasi-market regulation (school autonomy and competition for student recruitment) (1) is not linked to effectiveness and (2) tends to be associated with a stronger link between schools’ social composition and student achievement.  相似文献   

The time course of the syllable frequency effect in visual word recognition: evidence for both facilitatory and inhibitory effects in French     

Gwendoline Mahé  Anne Bonnefond  Nadège Doignon-Camus 《Reading and writing》2014,27(1):171-187

The present study tracked the time course of the syllable frequency effect in French visual word recognition, by varying the strength of spreading activation between letters and phonological syllables. The frequency of phonological first syllables and the frequency of orthographic first syllables were conjointly manipulated in two lexical decision tasks. In Experiment 1, word parsing into syllable units was supported by orthographic redundancy. No interaction between orthographic and phonological syllable frequency was found. In Experiment 2, word parsing into syllables was not marked by orthographic redundancy. Results showed an interaction between orthographic and phonological syllable frequency: the syllable frequency effect was inhibitory when orthographic syllable frequency was high, whereas it was facilitatory when orthographic syllable frequency was low. Decreasing the strength of syllable activation (i.e., with orthographic syllables of low frequency and ambiguous syllable boundaries) prevented the activation of lexical competitors before target word recognition, leading to a facilitatory effect of syllable frequency. The present study provides evidence that the net effect of syllable frequency is strongly related to its time course, and that the strength of syllable activation, which depends on orthographic properties, determines the direction of the net effect.  相似文献   

Convergence of Visions     

Thérèse Paquet-Sévigny 《International Information and Library Review》2013,45(3-4):447-454

The right for everyone to access “the promised land” of the InfoSociety is widely recognized. The “wiring of the universe” is now technically and financially possible. One should do it quickly in the respect of human values and rights, freedom of opinion, transparency and cultural diversity. However, in the context of communication developments in 1997, it is a multifacet issue of concern to all the countries. The cyberspace era brings many new challenges to the communications' academic curricula, professional practices, media owners and the research and development (R&D) of industries across the world. The emerging virtual communities change social and political relationships, as well as the job market well beyond national and linguistic boundaries. The paper examines the minimal conditions needed for this open process to take place with the participation of all players and the possible role of ORBICOM, the network of UNESCO Chairs in Communication.  相似文献