1,720,962 research outputs found
Education and treatment of calculation abilities of low achieving students and students with dyscalculia: whole class and individual implementations
No full textItalian epidemiological data reveal a large discrepancy between the incidence of learning disabilities in mathematics and simple difficulties in
mathematics. The incidence of dyscalculia (specific learning disability in
mathematics) is about 2%, whereas the incidence of students with dif-
ficulties in arithmetic is surprisingly greater, estimated by teachers to be
about five students out of 25 (that is, 20%). This unexpectedly high
number of students with difficulties invites serious consideration of its
cause and remedy. In this chapter, we try to answer to these questions
in the light of two educational studies aimed at improving calculation abilities and the outcome of an intervention with three single cases with
dyscalculia using the model and the materials of an innovative arithmetical
curriculum. The results suggest that for most children, their arithmetic
difficulties are simple consequences of their math instruction, which may
be remediated by integrating traditional math curricula with information
derived from the research on the cognitive arithmetical architecture and
its development. There are also implications that even the arithmetical
difficulties of dyscalculic children may be improved with special training
focused on their specific impairments revealed after a detailed assessment
L'intelligenza numerica. Abilità cognitive e metacognitive nella costruzione della conoscenza numerica dagli 8 agli 11 anni
No full textOggi la ricerca psicologica dimostra che nasciamo predisposti all'intelligenza numerica tanto quanto all'intelligenza verbale. È quindi importante che la scuola accompagni fin dalla più tenera età non solo lo sviluppo del linguaggio, ma anche la costruzione di questo altro tipo di intelligenza. L'intenzione del libro è quella di guidare gli insegnanti a utilizzare le strategie didattiche necessarie a potenziare i processi cognitivi specifici alla base dell'intelligenza numerica, proponendo esercizi basati su risultati ottenuti dalla ricerca. Ogni unità didattica è indipendente e mira a stimolare un determinato processo di apprendimento, differenziando in questo modo la proposta a seconda delle esigenze dei singoli alunni. Il testo, che non nasce solo come un contributo didattico, ma anche come strumento di potenziamento o riabilitazione delle abilità cognitive e metacognitive, conclude un ampio progetto che vuole seguire lo sviluppo e il potenziamento dell'intelligenza numerica e dell'apprendimento del sistema dei numeri e del calcolo attraverso 4 volumi (scuola dell'infanzia, primo e secondo ciclo della scuola elementare e secondaria di primo grado)
Il trattamento della discalculia evolutiva. Note metodologiche e risultati su sette casi singoli.
No full text
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
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
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