1,721,035 research outputs found
ICMI Renaissance: The emergence of new issues in mathematics education
No full textAbstract
Two facts mark the emerging of the new status of mathematics education as a scientific discipline: the inauguration in 1969 of the tradition of International Congresses on Mathematical Education (ICMEs), and the contemporary launch of journals related to mathematics education research. The early ICMEs acted as catalysts for new ideas that have their roots in important events that took place in the 1950s and 1960s. As a consequence new issues found their place in the international discussion on mathematics education and opened new lines of research and forms of action inside ICMI, so that we may talk about a genuine ICMI Renaissance. In our contribution we examine the background and circumstances that fostered and shaped the emergence of the new issues that have developed in mathematics education up to the present day
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
The role of concrete materials in Emma Castelnuovo's view of mathematics teaching
No full textEmma Castelnuovo (1913-2014) was an Italian mathematics teacher of grades 6 to 8 in secondary school. During the crucial period of the 1950s and 1960s, when important reforms were proposed, she was involved in significant events such as the first CIEAEM meetings and the Royaumont Seminar. She was an active contributor to the development of international cooperation in mathematics education and was one of the first authors in the journal Educational Studies in Mathematics. Thanks to pioneers such as Emma, the figure of teacher-researcher took shape and the milieu of mathematics education was forever changed. The main aim of Emma's work as an innovative teacher was to actively involve learners. In outlining Emma's action as a mathematics educator, we will pay particular attention to the use of concrete materials as this was a favorite means by which she pursued her aims. © 2014 Springer Science+Business Media Dordrecht
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Passato, presente e futuro dell’educazione matematica nelle celebrazioni del centenario dell’ICMI
No full textAbstract
To celebrate the centennial of the foundation of the ICMI, an International Symposium was held in Rome from 5 to 8 March 2008, and was followed by the publication of the proceedings. This was also the occasion for the creation of a website about the events and the chief characters of the first hundred years of ICMI. In this paper we present some of the ways in which the centennial was celebrated
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