1,720,957 research outputs found
Hasil Belajar Siswa SMP Melalui Strategi Quick on the Draw pada Materi Aritmetika Sosial
Full text linkAn active learning strategy with games that can lead students to collaborate in teams and dexterity is a Quick on the Draw strategy. This strategy can be applied to mathematics learning, especially in Social Arithmetic. Social Arithmetic is challenging for students at one of the junior high school in Aceh Besar; one of the reasons is that the strategy used is inappropriate. This study aims to determine the learning outcomes of students who are taught using the Quick on The Draw Strategy in the Social Arithmetic. The approach used in this research is a quantitative approach, with experimental research using a control group pre-test post-test design. The population is all students in the selected school, consisting of three classes. The samples were two classes: the control and the experimental classes. Sampling was done randomly. The test was short answer problems given before and after the learning. T-test was used to analyze the data. The findings concluded that the learning outcomes of students taught using the Quick on The Draw strategy are better than those in conventional learning on Social Arithmetic. This study implies that teachers should apply the strategy in their classroom
Identifikasi Kesulitan Siswa dalam Menyelesaikan Soal pada Materi Program Linier di SMA
Full text linkLinear programming material should be mastered well by students because many everyday problems can basically be solved using the concept of linear programming. However, many students find it difficult to understand the concept of solving problems in determining the optimum value of the objective function on linear programming. The purpose of this study was to determine the identification of Year 11 students' difficulties in solving linear program questions. The research subjects were Year 6 students, selected based on students' ability to solve problems. The results of this study indicate that the difficulty of the concept lies in the students' errors in determining the intersection point in the inequality, and determining the maximum and minimum values on linear programming problems. The principle difficulty lies in the students in determining the sign of the known inequalities, and the errors in solving problems using the elimination and substitution methods. In skill difficulties, the student's error lies in operating the values contained in the questions. Those difficulties led to incorrect answers
Analisis Kemampuan Representasi Matematis Siswa pada Materi Lingkaran di MTsN 2 Aceh Besar
Full text linkThis research is motivated by the importance of representational abilities in learning mathematics, so it is necessary for every student to be able to organize their ideas when solving problems. The purpose of this study is to determine the ability of students' mathematical representation in the circle material. This study uses a descriptive qualitative approach. The research subjects were 31 students of class VIII-1 MTsN 2 Aceh Besar. Data was collected through tests and interviews. The results showed that the level of students' mathematical representation ability was included in the very high category for visual representation, high category for symbolic representation, and medium category for verbal representation. High group students fulfill all aspects of representation, namely visual, symbolic, and verbal, medium group students meet two representation aspects, namely visual and symbolic, and low group students only meet one aspect of representation, namely visual. Several factors affect the level of representation ability, namely the difficulty of students making geometric drawings, mathematical models, and conveying mathematical ideas with words. The causes of student errors in solving problems are not paying close attention to the questions, not repeating the previous material, weak in analyzing problems, lack of thoroughness and experience in working on representational problems, so that their representational abilities do not develop. Based on the results of the study, it is hoped that it can be a teacher reference in improving students' representational abilities by training them to work on representational problems, so that students are accustomed to solving problems using various mathematical representations
Analisis Kemampuan Representasi Matematis Siswa Pada Materi Lingkaran
Full text linkThis research is driven by the significance of representational proficiencies in acquiring mathematical knowledge. The study aimed to examine students' mathematical representational aptitude in the context of circle. A descriptive qualitative approach was employed to fulfill this purpose, and 31 Year 8 students were selected as the research sample. Data was acquired through tests and subsequent interviews. The findings revealed that students' mathematical representational abilities could be classified as very high in visual representation, high in symbolic representation, and medium in verbal representation. The high-ability group of students demonstrated proficiency across all dimensions of representation, namely visual, symbolic, and verbal. The middle-ability group exhibited proficiency in two dimensions of representation, namely visual and symbolic. The low-ability group only demonstrated proficiency in the visual aspect. Various factors influenced students' representational abilities, including challenges in generating geometric depictions, constructing mathematical models, and articulating mathematical concepts orally. Student errors during problem-solving endeavors were attributed to a lack of attentiveness to the given questions, insufficient review of previous material, limitations in problem analysis, and a deficiency in precision and experience when handling representation-related queries. It is hoped that the findings can serve as a reference for educators to enhance students' representational proficiencies
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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