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Jurnal Infinity
Published by IKIP Siliwangi
ISSN : 20896867     EISSN : 24609285     DOI : https://doi.org/10.22460/infinity
Core Subject : Education,
Mathematics
Jurnal Infinity, a peer reviewed journal, provides a forum for publishing the original research articles, review articles from contributors, and the novel technology news related to mathematics education. This journal is designed and devoted not only to Indonesian Mathematics Educators Society (IMES) and Indonesian Mathematics Society (IndoMS) members but also to lecturers, researchers, mathematics school teachers, teacher educators, university students (Master and Doctoral) who want to publish their research reports or their literature review articles (only for invited contributors), and short communication about mathematics education and its instructional. Besides regular writers, for each volume, the contents will be contributed by invited contributors who experts in mathematics education either from Indonesia or abroad. The Journal invites original research articles and not simultaneously submitted to another journal or conference. The whole spectrum of research in mathematics education are welcome, which includes, but is not limited to the following topics: Mathematics Ability, Realistic Mathematics Education (RME), ICT in Mathematics Education, Design/Development Research in Mathematics Education, Ethnomathematics
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 336 Documents
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PENINGKATAN KEMAMPUAN KOMUNIKASI MATEMATIK MELALUI PEMBELAJARAN MATEMATIKA REALISTIK Saleh Haji; M Ilham Abdullah
Jurnal Infinity Vol 5 No 1 (2016): Jurnal Infinity Vol 5 No 1 Februari 2016
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i1.p42-49

Abstract

Tujuan penelitian ini adalah untuk mengetahui pencapaian dan peningkatan kemampuan komunikasi matematik siswa Sekolah Menengah Pertama Kota Bengkulu melalui Pembelajaran Matematika Realistik. Metode penelitian yang digunakan adalah kuasi eksperimen dengan non-equivalent control group design. Hasil penelitian sebagai berikut. Pembelajaran Matematika Realistik lebih efektif dalam pencapaian dan peningkatan kemampuan komunikasi matematik siswa dibandingkan pembelajaran konvensional. Besarnya pencapaian kemampuan komunikasi matematik siswa yang diajar melalui pembelajaran matematika realistik adalah 63,96 dan pembelajaran konvensional adalah 47,46. Sementara itu, besarnya peningkatan kemampuan komunikasi matematik siswa yang diajar melalui pembelajaran matematika realistik adalah 0,51 dan pembelajaran konvensional 0,24.  The purpose of this study is to determine the achievement and improvement of students’ mathematical communication ability in Bengkulu City Junior High School  through realistic mathematics learning. The method used is a quasi-experimental non-equivalent control group design. The results of this study as follows. The realistic mathematics learning is more effective in the achievement and improvement of students’ mathematical communication ability than conventional learning. The magnitude of the achievement of students’ mathematical communication ability in realistic mathematics learning is 63,96 and conventional learning is 47,46. Meanwhile, the magnitude of the improvement of students’ mathematical communication ability is realistic mathematics learning is 0,51  and conventional learning is 0,24
PEMANFAATAN WEB KHAN ACADEMY DALAM PEMBELAJARAN MATEMATIKA Joko Soebagyo
Jurnal Infinity Vol 5 No 1 (2016): Jurnal Infinity Vol 5 No 1 Februari 2016
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i1.p50-55

Abstract

Artikel ini bertujuan untuk mengobservasi pemanfaatan web Khan Academy siswa SMK Swasta di Jakarta Utara. Observasi dilakukan untuk mengamati aktivitas siswa dalam menggunakan web khan academy selama proses pembelajaran matematika. Pemanfaatan teknologi dalam proses pembelajaran matematika sudah sepatutnya dilakukan oleh pihak-pihak yang ikut bertanggungjawab atas keberhasilan belajar matematika perserta didik.  Teknologi merupakan hal yang tidak bisa dipisahkan dalam kehidupan sehari-hari dan salah satu bentuk teknologi yang sering dimanfaatkan saat ini adalah website dimana akitifitas pekerjaan, pendidikan, hiburan dan hubungan  sosial, semuanya dapat dialami melalui website.  Dibutuhkan sebuah website yang bias mengakomodir siswa dalam proses pembelajaran matematika baik di dalam kelas maupun di luar kelas.  Kriteria web yang baik haruslah memberikan kemudahan dalam pemanfaatannya, salah satu web tersebut adalah web khan academy. This paper aims to observe the use of web Khan Academy Private vocational students in North Jakarta. Observations carried out to observe the activities of the students in using web khan academy during the learning process of mathematics. The use of technology in the learning process of mathematics has been duly carried out by parties who share responsibility for the success of students studying mathematics participants. Technology is something that can not be separated in everyday life and one form of technology that is often used today is a website where the activity, employment, education, entertainment and social relationships, all of which can be experienced through the website. It takes a biased website to accommodate students in mathematics learning process both in the classroom and outside the classroom. Criteria for good web should provide ease of use, one of the web is a web khan academy.
ANALISIS KEMAMPUAN BERPIKIR KRITIS MATEMATIS MAHASISWA DALAM MENYELESAIKAN SOAL URAIAN KALKULUS INTEGRAL BERDASARKAN LEVEL KEMAMPUAN MAHASISWA Zetriuslita Zetriuslita; Rezi Ariawan; Hayatun Nufus
Jurnal Infinity Vol 5 No 1 (2016): Jurnal Infinity Vol 5 No 1 Februari 2016
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i1.p56-66

Abstract

Penelitian ini bertujuan untuk menggambarkan kemampuan mahasiswa dalam menyelesaikan setiap soal uraian kalkulus integral yang disusun berdasarkan indikator kemampuan berpikir kritis matematis dan berdasarkan level akademik mahasiswa. Bentuk penelitian yang digunakan adalah penelitian kualitatif.  Subyek dalam penelitian ini adalah mahasiswa semester 2 tahun ajaran 2014/2015 Program Studi Pendidikan Matematika FKIP UIR Pekanbaru yang sedang mengikuti mata kuliah kalkulus 2 berjumlah sebanyak 115 orang. Subjek dibagi atas tiga kelompok yaitu mahasiswa pada level kemampuan tinggi (10 orang), mahasiswa pada level kemampuan sedang (88 orang), dan mahasiswa pada level kemampuan rendah (17 orang). Teknik pengumpulan data dalam penelitian ini menggunakan teknik tes dan wawancara. Pengolahan keabsahan data menggunakan teknik triangulasi (mereduksi data, penyajian data, dan penarikan kesimpulan). Berdasarkan hasil penelitian diketahui bahwa: (1) Mahasiswa pada level kemampuan tinggi yang menjawab dengan benar soal pada indikator 1 sebanyak 4 orang (40%), indikator 2 sebanyak 8 orang (80%), dan indikator 3 sebanyak 5 orang (50%); (2) Mahasiswa pada level kemampuan sedang yang menjawab dengan benar soal pada indikator 1 sebanyak 5 orang (5,68%), indikator 2 sebanyak 75 orang (85,23%), dan indikator 3 sebanyak 8 orang (9,09%); (3) Mahasiswa pada level kemampuan rendah yang menjawab dengan benar soal pada indikator 1 sebanyak 0 orang (0%), indikator 2 sebanyak 13 orang (68,42%), indikator 3 sebanyak 5 orang (26,32%); (4) Secara keseluruhan, indikator 1 sebanyak 9 orang (7,69%), indikator 2 sebanyak 96 orang (82,05%), dan indikator 3 sebanyak 18 orang (15,38%). This research aims to describe the ability of students to solve any problem at integral calculus course which is based indicators of mathematical critical thinking ability and  level mathematical ability of students. Research method used in this study is a qualitative research. Subjects in this study were students of the 2nd semester 2014/2015 academic year at Mathematics Education FKIP UIR Pekanbaru. This population of this study were 115 students participating in  integral calculus course. Subjects were divided into three groups: students in high-level abilities (10), students in medium-level (88), and students in low-level (17). Data collection techniques in this study using the test and interview techniques. Processing of data validity using triangulation techniques (data reduction, data presentation, and conclusion). Based on the results of the study are found that: (1) Students at a high-level correctly answering questions on the indicator 1 of 4 students (40%), indicator 2 of 8 students (80%), and 3 indicators as much (50%); (2) Students at the level of ability is being correctly answering questions on the indicator 1 5 students (5.68%), indicator 2 many as 75 students (85.23%), and indicators 3 of 8 persons (9.09%) ; (3) Students at a low level ability correctly answering questions on a first indicator from 0 (0%), indicator 2 as many as 13 students (68.42%), indicator 3 by 5 votes (26.32%); (4) Overall, the indicators one by 9 votes (7.69%), indicator 2 as many as 96 students (82.05%), and a third indicator as many as 18 students (15.38%). 
AN ANALYSIS OF SELF-REGULATED LEARNING ON MATHEMATICS EDUCATION STUDENT FKIP UNDANA Damianus D Samo
Jurnal Infinity Vol 5 No 2 (2016): Volume 5 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i2.p67-74

Abstract

This research aims to explore the differences among self regulating learning aspect of math education students-FKIP Undana involving three groups of students which are the first level (the first semester), second level (fifth semester) and third level (ninth semesters) students to review the ability of the individual. The samples included 167 students that consist of 60 students of the first level (18 with high ability; 27 with average ability and 15 with low ability), 64 students of the second level (16 with high ability, 30 with average ability and 18 with low ability) and 43 students of the third level (6 with high ability, 24 with average ability and 13 with low ability). This research is a survey research. The data collection is done by distributing questionnaires on self-regulated learning to those three groups. SRL questionnaire consists of 10 aspects, goal setting, motivation, learning difficulties analysis, self-efficacy, election strategies, meta cognition, resource management, performance evaluation, evaluation of the understanding, and self-satisfaction. Two-way ANOVA was utilized in the data analysis of this study. The results of the analysis showed that, the first level group is more excellent in SRL than two other levels. In a review of capabilities, the average comparison of all three groups showed that the average-ability students excel both the high and low-ability students in SRL.
PROSPECTIVE TEACHERS’ ABILITY IN MATHEMATICAL PROBLEM-SOLVING THROUGH REFLECTIVE LEARNING Yunika Lestaria Ningsih; Rohana Rohana
Jurnal Infinity Vol 5 No 2 (2016): Volume 5 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i2.p75-82

Abstract

The research aims to determine the mathematical problem-solving ability of prospective teachers’  through  reflective learning.  Reflective learning is a learning process that provides students the opportunity to examine and investigate the problems that is triggered by experience, analyzing of individual the experiences, and facilitate the learning of  the experiences. These lessons are identified to improve mathematical ability students. By using a descriptive qualitative research. The subject of this study were students of Mathematics Education Program in one of private universities in Palembang, consisting of 34 students. This study was conducted in odd semester academic year of 2015/2016. The instruments in this study were mathematical problem-solving ability test, observation sheet, and interview guide. The data were analyzed descriptively. Based on analysis of the data are found that the average mathematical problem-solving ability of students’  through  reflective learning in good categories.
PROFILE OF COGNITIVE STRUCTURE OF STUDENTS IN UNDERSTANDING THE CONCEPT OF REAL ANALYSIS Wahyu Widada
Jurnal Infinity Vol 5 No 2 (2016): Volume 5 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i2.p83-98

Abstract

The purpose of this research is to describe proil cognitive structure of students in understanding the concept of real analysis. This research is part of the research development of the theory of cognitive structure of students Mathematics Education Program at the University of Bengkulu. The results of this research are: 1)there are seven models decompositions of genetic students mathematics education reviewed based on the SRP Model about the concepts of Real Analysis namely Pra-Intra Level, Level intra, Level semi-inter, Level inter, Level semi-trans, Trans Level, level and Extended-Trans (only theoretic level while empirically not found); 2) There are six models decompositions of genetic students mathematics education reviewed based on KA about the concepts of Real Analysis namely Level 0: Objects of concrete steps; Level 1: Models Semi-concrete steps; Level 2: Models Theoretic; Level 3: Language in Domain Example; Level 4: Mathematical Language; Level 5: Inferensi Model. Profile of cognitive structure of mathematics education student at the University of Bengkulu is 6.25% Students located on the Basic Level (Pra-Intra Level with concrete objects), there is 8.75% Students located at Level 0 (intra Level with concrete objects), there are 15,00% Students located at Level 1 (semi-Level inter with Semi-Concrete Model), there are 33.75 percent students located on Level 2 (Level inter with theoretical model), there are 22.50 percent students located at Level 3 (Semi-trans Level with the Bible in Domain example), there are located on the student percent during the Level 4 (Trans Level with the language of Mathematics), and there are 0 percent students located at Level 5 (Level Extended-Trans with Inferensi Model). Students Education Mathematics at the University of Bengkulu pembangunnya element is functional can achieve Trans Level, students will be able to set up activities and make the algorithm that formed the concept/principles with the right. Functional students can also perform the process of abstraction using the rules in a system of mathematics.
ANALYSIS OF STUDENTS MATHEMATICAL REPRESENTATION AND CONNECTION ON ANALYTICAL GEOMETRY SUBJECT Muchamad Subali Noto; Wahyu Hartono; Dadan Sundawan
Jurnal Infinity Vol 5 No 2 (2016): Volume 5 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i2.p99-108

Abstract

The importance ability of mathematical representation and connection to owned by the student really help students in understanding the mathematical concepts in the form of pictures, symbols, and the written word. The use of mathematical representation and the correct connection by students will help students make mathematical ideas more concrete and can connect a concept to another concept, so that students can develop a view of mathematics as a whole integration. This research aims to describe and analyze the ability of representation and mathematical connection on the topics of analytical geometry. The research method was descriptive with the subject as much as 22 mathematics students. Data collected through tests and interviews. The results show that the average ability of representation is 46.00; the average mathematical connection ability is 36.77. This means both the abilities still belongs to low, particularly for the ability of mathematical connection.
INCREASED CAPACITY OF THE UNDERSTANDING OF THE CONCEPT AND THE ABILITY TO SOLVE PROBLEMS THROUGH THE IMPLEMENTATION OF THE MODEL OF TEACHING MATHEMATICS REALISTIC BASED ON COGNITIVE CONFLICT STUDENTS Dewi Herawaty; Rusdi Rusdi
Jurnal Infinity Vol 5 No 2 (2016): Volume 5 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i2.p109-120

Abstract

This research aims at: 1) the influence of the implementation of the model of teaching mathematics realistic based on cognitive conflict students to the ability to understanding the concept and troubleshooting capabilities; 2) determine the larger capacity of the understanding of the concept through the implementation of the model of teaching mathematics realistic based on cognitive conflict junior secondary school students the City of Bengkulu. 3) determine the great improvement of the ability to solve problems through the implementation of the model of teaching mathematics realistic based on cognitive conflict SMP students Bengkulu City.To achieve the goal of this research is to apply Research Design pseudo experiments with research design Pretest-Postest Nonequivalent Control Group Design, with the test instrument the ability to understanding the concept and test the troubleshooting capabilities. The data has been analyzed using the test gains. The results of this research is 1) the ability of understanding the concept and troubleshooting class experiment the given learning with PMR is better than with the ability to understanding the concept and troubleshooting control classes assigned to conventional mathematics lesson; 2) increase the ability of the understanding of the concept through the implementation of the model of teaching mathematics based on cognitive conflict SMP students Bengkulu City is significant with the index gain of 0,755 (high-level); 3) increase the ability to solve problems through the implementation of the model of teaching mathematics based on cognitive conflict SMP students Bengkulu City is significant with the index gain of 0,500 level (is).
LEARNING MEDIA DEVELOPMENT APPROACH WITH A RECTANGLE PROBLEM POSING BASED GEOGEBRA Bagus Ardi Saputro
Jurnal Infinity Vol 5 No 2 (2016): Volume 5 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i2.p121-130

Abstract

This study aims to develop learning media quadrilateral with problem posing approach based GeoGebra. 8 teachers from three different schools have stated that this media can be used to teach the nature - the nature of the quadrilateral. After the learning is done using this media, this media can facilitate students in asking about the nature - the nature of wake quadrilateral, facilitating students to learn the relationship between the type - the type of wake rectangles that have the same properties, and provides the opportunity for teachers in the evaluation of mathematical communication current students ask and write.
THE DEVELOPMENT OF COURSEWARE BASED ON MATHEMATICAL REPRESENTATIONS AND ARGUMENTS IN NUMBER THEORY COURSES Cita Dwi Rosita
Jurnal Infinity Vol 5 No 2 (2016): Volume 5 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v5i2.p131-140

Abstract

Courseware have an important role in the achievement of the objectives of education. Nevertheless, it does not mean any learning resources can be used for a type of learning. The teacher should provide and develop materials appropriate to the characteristics and the social environment of  its student. Number Theory courses is one of the basic subjects that would be a prerequisite for courses at the next level, such as Linear Algebra, Complex Analysis, Real Analysis, Transformation Geometry, and Algebra Structure. Thus, the student’s understanding about the essential concepts that exist in this course will determine their success in studying subjects that mentioned above. In trying to understand most of the topics in Number Theory required  the abilities of mathematical argumentation and representation. The ability of argumentation is required in studying the topic of complex number system, special operations, mathematical induction, congruence and divisibility. Ability representation especially verbal representations and symbols required by almost all the topics in this course. The purpose of this paper is to describe the development of teaching and learning Number Theory materials which facilitate students to develop the ability of mathematical argumentation and representation. The model used is a Thiagarajan development model consisting phases of defining, planning, development, and deployment. This paper is restricted to the analysis of the results of the materials validation from number theory experts.

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