1,721,139 research outputs found
The acquisition of preschool mathematical abilities: Theoretical, methodological and educational considerations. An introduction
Full text linksponsorship: This research was partially supported by Grant GOA 2012/10 "Number sense: analysis and improvement" from the Research Fund KU Leuven, Belgium (Joke Torbeyns, Lieven Verschaffel) and a Royal Society Dorothy Hodgkin Fellowship (Camilla Gilmore). (Research Fund KU Leuven, Belgium|GOA 2012/10, Royal Society Dorothy Hodgkin Fellowship)status: Publishe
sj-docx-1-qjp-10.1177_17470218221094577 – Supplemental material for The structure of the notation system in adults’ number line estimation: An eye-tracking study
No full textSupplemental material, sj-docx-1-qjp-10.1177_17470218221094577 for The structure of the notation system in adults’ number line estimation: An eye-tracking study by Kelsey J MacKay, Filip Germeys, Wim Van Dooren, Lieven Verschaffel and Koen Luwel in Quarterly Journal of Experimental Psychology</p
MAKING SENSE OF WORD PROBLEMS: THE EFFECT OF REWORDING AND DYADIC INTERACTION
No full textIn this study we investigated the effect of the request to reword the text of problematic word problems on the occurrence of realistic answers. We proposed the activity of rewording word problems to fifth grade pupils either working individually or in dyads. We found that the rewording the problems while working individually had no effect, while rewording in dyads produced a strong increase of pupils’ realistic answers. Moreover we analysed the pupils’ reworded texts in order to characterize the kind of information added by pupil
La compréhension des opérations additives et soustractives au travers de la résolution de problèmes arithmétiques : présentation des axes directeurs d'une thèse de doctorat en cours de préparation
Full text linkCette recherche fait l'objet d'une thèse de doctorat, présentée par l'auteur du présent article dans le cadre d'un mandat d'aspirant au F.N.R.S. Le projet est encadré par une comité de thèse constitué de Marcel Crahay (directeur de thèse, ULg), de Jacqueline Beckers (ULg) et de Lieven Verschaffel (KUL). A l'heure actuelle, l'état d'avancement des travaux ne permet pas encore de présenter les résultats des investigations. Le présent article vise à donner un aperçu des différents axes sur lesquels porte l'étude
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
- …
