1,720,959 research outputs found
Study of representations of polynomial functions in the PAR plane.
No full textEste trabajo surge por la inquietud de estudiar las funciones polinómicas en un plano diferente al usual, plano PAR -Parallel Axes Representation- (Nachmias y Arcavi, 1990; citado en Morales Rozo, 2021). Para ello, se tuvieron en cuenta referentes metodológicos (la ingeniería didáctica, el método inductivo y deductivo) y conceptuales. Estos últimos son: la noción de representación y la influencia que está tiene en el aprendizaje, el conocimiento del profesor de matemáticas siguiendo el modelo de Stacey (2008) y lo expuesto de las funciones polinómicas en algunos textos de educación secundaria y media. Como resultados de este estudio se identificaron las representaciones graficas que tienen las funciones lineales, cuadráticas y cúbicas, asi como su expresión algebraica en el plano PAR.
Además, se logró generalizar comportamientos que identificaban a las funciones pares e impares en dicho plano. Para ello, se desarrolló un programa en el software GeoGebra que permite reconocer el comportamiento y las particularidades de cada función.Licenciado en MatemáticasPregradoThis work arises from the concern of studying polynomial functions in a plane different from the usual one, PAR plane -Parallel Axes Representation- (Nachmias and Arcavi, 1990; cited in Morales Rozo, 2021). For this, methodological references (didactic engineering, the inductive and deductive method) and conceptual references were taken into account. These last ones are: the notion of representation and the influence that it has on learning, the knowledge of the mathematics teacher following the model of Stacey (2008) and what has been exposed about polynomial functions in some secondary and secondary education texts. As results of this study, the graphic representations of linear, quadratic and cubic functions were identified, as well as their algebraic expression in the PAR plane.
In addition, it was possible to generalize behaviors that identified even and odd functions in said plane. For this, a program was developed in the GeoGebra software that allows to recognize the behavior and the particularities of each function
Tareas con sentido profesional en la formación de profesores de matemáticas : validación a partir del cambio conceptual.
No full textEste trabajo de grado valida la tarea "Enseñanza de los números reales en libros de texto y su aprendizaje" (Mora, 2023) como una tarea con sentido profesional en la formación de profesores de matemáticas. A través de un enfoque cualitativo y fenomenológico, se analizan las experiencias y cambios conceptuales de los estudiantes en relación con los números reales. Se emplearon métodos como la observación participante y el análisis documental para identificar patrones de aprendizaje y progreso. Los resultados evidencian un desarrollo progresivo en la comprensión matemática de los estudiantes, destacando la relevancia de esta tarea en la preparación de futuros docentes y en el fortalecimiento de sus competencias pedagógicas.Licenciado en MatemáticasPregradoThis thesis validates the task "Teaching Real Numbers in Textbooks and Their Learning" (Mora, 2023) as a professionally meaningful task in the training of mathematics teachers. Through a qualitative and phenomenological approach, it analyzes the experiences and conceptual changes of students related to real numbers. Methods such as participant observation and document analysis were used to identify learning patterns and progress. The results show a progressive development in students' mathematical understanding, highlighting the relevance of this task in preparing future educators and strengthening their teaching competencies.Research on Mathematics Teacher Educatio
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
La filosofía de las matemáticas en el conocimiento del profesor de matemáticas
Full text linkEsta investigación tiene como propósito analizar algunos referentes teóricos sobre la Filosofía de las Matemáticas (FM) y el conocimiento del profesor de Matemáticas (CPM), con el fin de presentar evidencias de la articulación e integración de la FM en los modelos del CPM en función del quehacer docente, particularmente el sugerido por Stacey (2008). Por lo anterior, se sistematizan y describen los planteamientos de algunas fuentes bibliográficas referentes a la FM y a los modelos del CPM con la intención de aportar información sobre la relación que hay entre la Didáctica de las Matemáticas (DM), la FM, y el CPM
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