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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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REFLECTIVE THINKING CHARACTERISTICS: A STUDY IN THE PROFICIENT MATHEMATICS PROSPECTIVE TEACHERS Cholis Sa'dijah; Muhammad Noor Kholid; Erry Hidayanto; Hendro Permadi
Jurnal Infinity Vol 9 No 2 (2020): VOLUME 9, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i2.p159-172

Abstract

Reflective thinking begins with repeated confusion and evaluation to solve a problem. There are four aspects to reflective thinking, namely techniques, monitoring, insight, and conceptualization. However, the problem-solvers’ reflective thinking characteristics in mathematical problems have not been discovered. The study describes the reflective thinking characteristics of proficient mathematics prospective teachers based on four aspects. The qualitative research was conducted at Universitas Muhammadiyah Surakarta with a total of 64 reflective thinkers. Data collected by test, observation sheets, and interview methods. The tests were administered twice. The instruments developed has been through the validation process and declared valid. Data analyzed through the stages of reduction, presentation, and verification. We successfully conclude that proficient mathematics prospective teachers have complete and consistent reflective thinking characteristics. Further research can be focused on the characteristics of reflective thinking based on another aspect.
COMPARISON OF ALGEBRA LEARNING OUTCOMES USING REALISTIC MATHEMATICS EDUCATION (RME), TEAM ASSISTED INDIVIDUALIZATION (TAI) AND CONVENTIONAL LEARNING MODELS IN JUNIOR HIGH SCHOOL 1 MASOHI Anderson Leonardo Palinussa
Jurnal Infinity Vol 9 No 2 (2020): VOLUME 9, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i2.p173-182

Abstract

The study aims to examine the application of the Realistic Mathematics Education (RME), the Cooperative Learning Model Team Assited Individualization (TAI) type and conventional learning models on algebra. The population in thIS study were all eighth grade SMPN 1 Masohi. The type of this study is an experimental research design with quasi experimental research. Instruments in this study using the test results, analyzed using ANOVA test and further tests using Tukey's HSD test. From the analysis of these study obtained data: (1) Based on the normality test results obtained sig. X1 (RME Learning Model) of 0.976, X2 (Cooperative Learning Model TAI Type) of 0.889 and X3 (Conventional Learning Model) of 0.906. (2) Based on the one-way ANOVA calculation with the SPSS 20.0 program, obtained a significance value of 0.003. (3) There are significant differences in algebra learning outcomes between classes using the RME learning model, the cooperative learning model TAI type and conventional learning model, and (4) The algebra learning outcomes of students used the RME learning model are higher than the students that are used cooperative learning models TAI type and the students that used conventional learning model.
CHALLENGES DURING THE PANDEMIC: USE OF E-LEARNING IN MATHEMATICS LEARNING IN HIGHER EDUCATION Muhammad Irfan; Betty Kusumaningrum; Yuyun Yulia; Sri Adi Widodo
Jurnal Infinity Vol 9 No 2 (2020): VOLUME 9, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i2.p147-158

Abstract

On March 16, 2020, many universities in Indonesia began implementing online-based learning to replace lectures in the classroom. This is done as a way to reduce the transmission of the Covid-19 outbreak in Indonesia. There is an opinion that with the implementation of online learning, especially in mathematics education study programs, there are many obstacles when learning takes place. This study aims to determine the obstacles that arise after the implementation of online learning in mathematics learning in Higher Education. This research is a qualitative case study, assisted by an online survey. The researcher collected data through an online survey consisting of 27 questions. The survey is aimed at lecturers who teach in Mathematics Education study programs in Indonesia. The survey contains structured questions and leads to three parts, namely; basic skills challenges, teaching and learning challenges, and university challenges. The 27 questions contained questions about the ability of platform mastery to support online learning owned by each lecturer. The research involved 26 lecturers from universities in Sumatra, Java, Kalimantan, and Sulawesi. The results of this study reveal that all lecturers affected by the pandemic use a Learning Management System (LMS) based website as a means of online learning. The learning management system-based platform is the most widely used (google class and Edmodo) while video conferencing is the second choice (Zoom and Skype). What is interesting is that the LMS available on campus is less attractive to lecturers. However, there are obstacles faced such as the limitations of writing mathematical symbols and the limited basic capabilities of the learning management system and multimedia software to support online learning.
STUDENTS' REFLECTIVE ABSTRACTION ABILITY ON LINEAR ALGEBRA PROBLEM SOLVING AND RELATIONSHIP WITH PREREQUISITE KNOWLEDGE Rahayu Kariadinata
Jurnal Infinity Vol 10 No 1 (2021): VOLUME 10, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v10i1.p1-16

Abstract

This study aims to describe the achievement of the ability of students' reflective abstraction in solving Linear Algebra problems and the relationship with prerequisite knowledge. The important of this research because the characteristic of Linear Algebra requiring reflectif abstraction skill that must be support by the prerequisite knowledge. The reflective abstraction abilities studied in this study are level, i.e.1) recognition,2) representation, 3) structural abstraction, and 4) structural awareness. These stages are adjusted to Polya's problem solving stages, namely: understanding the problem, devising a plan, carrying out the plan, and looking back. This type of research is descriptive-quantitative. The subjects of this study were students of the Mathematics Education Study Program, Faculty of Tarbiyah and Teacher Training of UIN Sunan Gunung Djati Bandung Indonesia. Collecting data through tests and interviews, data were analyzed with percentage and the pearson product-moment correlation.The results showed that the achievement level  consisiting of ) recognition,2) representation, 3) structural abstraction, and 4) structural awareness of the students’ reflective abstraction abilities on linear algebra problem solving are very good, this can be seen from the percentage achieved at stages of the recognition,the representation,the structural abstraction, and the structural awareness which is associated with Polya problem solving measures above an average of 73,31% (moderat category); there are relationship between students' reflective abstraction abilities and their prerequisite knowledge; and prerequisite knowledge influences the students’reflective abstraction abilities.
MATHEMATICS COMMUNICATION MISTAKES IN SOLVING HOTS PROBLEMS Lelly Nur Rachmawati; Yus Mochamad Cholily; Zukhrufurrohmah Zukhrufurrohmah
Jurnal Infinity Vol 10 No 1 (2021): VOLUME 10, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v10i1.p69-80

Abstract

Student mistakes in communicating mathematical ideas are still widely practiced. Therefore, it is essential to analyze students' mathematical communication errors in solving mathematical problems so that learning planning can be better. This study aims to describe students' mathematics communication errors in solving higher-order thinking skills in linear algebra and matrix subject. The type of research is a qualitative descriptive study. They were 155 students as subject research. The data analysis started by collecting students' answers and then grouped them according to mathematics communication skills criteria. Later identified and analyzed the errors made by students of each mathematics communication criteria. The results showed that mathematical communication errors on the indicators of writing mathematical situations were concept errors and principle errors. The declaring idea's mathematical communication error is a concept error, a principle error, and an operation error. Furthermore, mathematical communication errors on the indicator state that solving-problem using the language itself is a concept error and operator error.
RELATIONSHIP BETWEEN MISCONCEPTION AND MATHEMATICAL ABSTRACTION OF GEOMETRY AT JUNIOR HIGH SCHOOL Gida Kadarisma; Nelly Fitriani; Risma Amelia
Jurnal Infinity Vol 9 No 2 (2020): VOLUME 9, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i2.p213-222

Abstract

This study aims to examine the misconceptions that often occur in junior high school students on the concept of geometry based on abstraction level. The research method is qualitative with a case study design. Subjects in this study are 27 students of the 3rd grade of junior high school students, who had to learn all the concepts that will be appeared on the test. Material that will be given on the test of this research is the concept of Triangle, Quadrilateral, Flat Side Geometry and Curved Side Geometry. This research takes a place at one of the junior high schools in Cimahi. The instrument in this study is a diagnostic test (to find out the types of students’ misconception), mathematical abstraction tests (to determine the level of abstraction) and interview rubrics. Misconceptions produced by students are closely related to students’ mathematical abstractions, the higher the level of abstraction ability, the more students away from misconceptions. The topic taken in this study is the topic of basic geometry, the results can be a source of information about the types of misconception that often occur in students, and how the solution so that these misconception do not re-occur.
PROFILE OF PROSPECTIVE TEACHERS' MATHEMATICAL COMMUNICATION ABILITY REVIEWED FROM ADVERSITY QUOTIENT Muhtarom Muhtarom; Adelia Dian Pratiwi; Yanuar Hery Murtianto
Jurnal Infinity Vol 10 No 1 (2021): VOLUME 10, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v10i1.p93-108

Abstract

Communication skills are an essential aspect that students need to possess by students who want to succeed in their studies, where students' mathematical communication can organize mathematical thinking both orally and in writing. While AQ is intelligent in facing difficulties, a student must face the problems that exist in them. This study aims to determine the profile of prospective mathematics prospective teacher's mathematical communication skills in terms of adversity quotient. This study was conducted on mathematics education students in the 6th semester of Universitas PGRI Semarang. This research is a descriptive qualitative study. Subjects taken from 57 respondents were three students in the category of climbers, campers, and quitters. Written tests and interviews do data collection. Indicators of mathematical communication skills used in this study include drawing, writing, and mathematical expression. The results showed that the subject climber can meet all the indicators of mathematical communication skills and can be said to be good. Subject campers tend to meet all indicators of mathematical communication skills, have the power of communication in indicators drawing, and be quite useful. Quitter's subject tends not to meet all the communication indicators. The subject does not answer the drawing indicator's problem, and the writing and mathematical expression indicators are still wrong.
TWO DECADES OF REALISTIC MATHEMATICS EDUCATION RESEARCH IN INDONESIA: A SURVEY Rully Charitas Indra Prahmana; Laela Sagita; Wahyu Hidayat; Niken Wahyu Utami
Jurnal Infinity Vol 9 No 2 (2020): VOLUME 9, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i2.p223-246

Abstract

Freudenthal's ideas on mathematics that stated mathematics as a human activity and mathematics must be connected to reality have colored towards learning mathematics all over the world, including Indonesia. Existing research on this topic in Indonesia among two decades is categorized and compared. This paper presents a systematic literature review of empirical studies on this learning approach in Indonesian context. The implementation of this approach in Indonesia was analyzed comprehensively and divided into several major topics. Resources of this research come from 110 articles by ten highest rank accredited journals by the Ministry of Research, Technology, and Higher Education, the Republic of Indonesia as an achievement for the peer-reviewed journal, which has excellent quality in management and publication. The results show that there are seven categories summarized in this research: the dominance of published RME articles, RME research subjects, mathematical topics, students' abilities, RME terms, and the research method used in RME articles. Lastly, the summarized 110 papers are displayed in the table to give essential information as a fundamental idea for further RME research.
SUPPORTING SOLVING WORD PROBLEMS INVOLVING RATIO THROUGH THE BAR MODEL Siti Nurain Said; Khairul Amilin Tengah
Jurnal Infinity Vol 10 No 1 (2021): VOLUME 10, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v10i1.p149-160

Abstract

The weak ability for students to correctly attempt word problem question in mathematics have pushed researcher to study multiple approach in attempting such questions. This study examined the effectiveness of the Bar Model as a problem solving heuristic in improving Year 8 students’ performance in solving word problems involving ratio. A total of thirty-three Year 8 students from a secondary school in Brunei Darussalam were involved in the study. Data were collected through pre-test and post-test. Paired sample t-test on the mean score of pre-test and post-test showed a significant improvement in the students’ mean marks (t = - 8.079).  The results also revealed that the Bar Model is capable of helping students of all abilities particularly the weaker students. Hence for this study, the Bar Model successfully enhanced the lower secondary students’ performance in solving word problems involving ratio, particularThy when presented as public examination questions.
MATHEMATICAL TRAUMA STUDENTS' JUNIOR HIGH SCHOOL BASED ON GRADE AND GENDER Ayu Faradillah; Leha Febriani
Jurnal Infinity Vol 10 No 1 (2021): VOLUME 10, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v10i1.p53-68

Abstract

Mathematical trauma is a mental condition of students caused by experiences that make it difficult or emotionally with mathematics. This study analyzes students’ trauma of mathematics based on grade and gender by using survey research methods and data processing using Winsteps. The subjects of the research were 204 students in every grade in Junior High School. The questionnaire consisted of 20 statements. This instrument was developed measuring mathematical trauma. It consisted of three indicators: difficult to adapt to the environment, saturated with the learning system that is done, and difficult to get along and organize themselves. Based on the Rasch analysis, for the item, two items (I10 and I7) are a misfit, and the rest items are fit. The items were suitable for 147 respondents (72.06%). Based on The Wright Maps table on WinSteps, the percentage of male students who are very traumatized by mathematics is more than female students. Meanwhile, based on grade, students from grade 8 are more very traumatized by mathematics than students from grade 7 and grade 9. Furthermore, based on a questionnaire, students prefer to class condition that made very traumatized by mathematics.

Page 17 of 34 | Total Record : 336

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