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Wahyu Hidayat
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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 13 Documents
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Search results for , issue "Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY" : 13 Documents clear
DEVELOPMENT OF PISA TYPES OF QUESTIONS AND ACTIVITIES CONTENT SHAPE AND SPACE CONTEXT PANDEMIC PERIOD Risda Intan Sistyawati; Zulkardi Zulkardi; Ratu Ilma Indra Putri; Samsuriyadi Samsuriyadi; Zahra Alwi; Sisca Puspita Sepriliani; Ayu Luviyanti Tanjung; Riszky Pabela Pratiwi; Shinta Aprilisa; Duano Sapta Nusantara; Meryansumayeka Meryansumayeka; Jayanti Jayanti
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p1-12

Abstract

This research belongs to the type of development research, which consists of the main stages, including preliminary design and formative evaluation. This study aims to obtain valid and practical PISA-type development questions consisting of initial design, self-evaluation, expert review, one-to-one, and small group. The emergence of this research is due to the low mathematical literacy of students in Indonesia. This study took a particular research subject for grade IX junior high school students in Palembang City. From this study, the results obtained include the development of PISA-type questions and activities using the context of social distancing during the pandemic.
INTEGRATING PEER TUTORING VIDEO WITH FLIPPED CLASSROOM IN ONLINE STATISTICS COURSE TO IMPROVE LEARNING OUTCOMES Ramadoni Ramadoni; Kao Tai Chien
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p13-26

Abstract

Online learning has become a solution in the field of education lately. Statistics is one of the subjects students must take at the university level. Learning statistics takes work for students. Based on the author's investigation, there are three obstacles to students in online learning: the constraints of students in understanding the material, the online learning process, and the assignment process. The sample in this study is a student with an Indonesian worker background in Taiwan, where they study online at night. Since an appropriate online learning method is needed to achieve student success, this study analyzes three online learning methods: conventional online learning, conventional flipping classes in online learning, and innovative flipped classrooms in online learning. This study investigates the three learning methods' results in differences in gender, job, and age. The results obtained indicate that there are significant differences in student learning outcomes in the three sample groups. Further analysis showed that the innovation of flipped classrooms in online learning significantly differs from the other two learning methods. Based on the type of job, there are differences in student learning outcomes taught in the conventional flipped classroom in online learning. It was also seen in the analysis of combining all student learning outcomes taught with online learning that there were differences in student learning outcomes regarding the job. A household assistant is better than a factory worker because students who work as household assistants have more flexible time to watch videos and repeat them than those who work as factory workers.
MATHEMATICAL PROBABILITY: LEARNER'S MISCONCEPTION IN A SELECTED SOUTH AFRICAN SCHOOL Winston Hendricks; Babawande Emmanuel Olawale
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p165-178

Abstract

Mathematics plays an essential role in developing human thought, particularly in developing problem-solving and reasoning. While mathematics has become a problem-solving tool in various fields, including science, it has distinct qualities known as probability and, more specifically, probability theory. For most learners, the probability is difficult to learn and conceptualize. Hence, the present study investigates learners’ misconceptions in the teaching and learning of probability in a selected school in the Eastern Cape Province, South Africa. Underpinned by a Post-positivist paradigm, the study employed a quantitative research approach and a survey design in which data were gathered from mathematics learners from grades 10-12. Findings revealed that although the frequency of misconceptions varied across grade levels, it was difficult to describe how misconceptions about probability changed. As such, while learners progressed through the grades, some misconceptions faded with age, others remained stable, and others grew in power. The findings also revealed that the types of probability misconceptions did not differ significantly by gender, and male learners tend to have more misconceptions about probability than female learners.
MATHEMATICAL RESILIENCE, HABITS OF MIND, AND SOCIOMATHEMATICAL NORMS BY SENIOR HIGH SCHOOL STUDENTS IN LEARNING MATHEMATICS: A STRUCTURED EQUATION MODEL Samsul Maarif; Nelly Fitriani
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p117-132

Abstract

The process of learning mathematics is determined by cognitive aspects and requires an affective domain. The affective domain is essential in developing mathematical abilities to solve mathematical problems. This study aims to analyze the effect of mathematical resilience (RM) and habits of mind (HOM) on socio-mathematical norms (SMN) in mathematics learning. The research method used is quantitative, with survey techniques and structured inquiry models. The sample in this study was 100 high school students in the DKI Jakarta area. Data analysis was performed using the structured equation model (SEM) using SmartPLS software. This research uses eight items of mathematics resilience instrument, ten items of habits of mind instrument, and 12 items of socio-mathematical norm instrument. Each instrument has four alternative answers with a Likert scale. The results of the study concluded: 1) there is a positive impact of mathematical resilience on socio-mathematical norms; 2) there is a positive impact of habits of mind on socio-mathematical norms; 3) there is a positive impact of mathematical resilience on habits of mind; 4) there is a positive impact of mathematical resilience on sociomathematical norms mediated by habits of mind.
THE SOCIOGRAPH: FRIENDSHIP-BASED GROUP LEARNING IN THE MATHEMATICS CLASS Sri Adi Widodo; Turmudi Turmudi; Jarnawi Afgani Dahlan; Somchai Watcharapunyawong; Hasti Robiasih; Mustadin Mustadin
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p27-40

Abstract

Mathematics class can cause many problems if students do not organize diversity and habits correctly. Using a sociograph to form a mathematics study group is one way to organize assortment in the mathematics class. Sociograph is a friendship pathway that appears in a math class. In this sense, this study aims to determine the impact of forming study groups based on friendship in a mathematics class on problem-solving abilities. A quasi-experimental research design with 30 students was used. A friendship questionnaire and a problem-solving test were used as instruments. In addition, an independent t-test was used to analyze the data. The study results indicate that study groups formed through friendship pathways (sociograph) have a more significant effect than those formed through other means. As a result, the formation of heterogeneous groups based on friendship can be used as an alternative to the formation of study groups.
IMPLEMENTATION OF ONLINE LEARNING AND ITS IMPACT ON LEARNING ACHIEVEMENTS OF MATHEMATICS EDUCATION STUDENTS Simon M. Panjaitan; Agusmanto J. B. Hutauruk; Christina Sitepu; Sanggam P. Gultom; Parlindungan Sitorus; Melati Riani Marbun; Cahyana Hotmauli Sinaga
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p41-54

Abstract

Implementing online learning in a higher education environment requires an analysis of learning outcomes and their impact on students, lecturers, and the institutions that administer the learning. The implementation of online learning shows that the learning process takes place and the readiness of lecturers and students to implement online learning. The impact given by online learning is in the form of GPA and student perceptions of the learning process they experience. Based on the research results, various findings were obtained, including that mastery of online learning LMS was not optimal, learning outcomes in the form of GPA were relatively high, students' perceptions of online learning were still low, especially in terms of lecturer readiness and students' confidence in their competence after participating in learning.
HOW DO STUDENTS' DECISION-MAKING ABILITY IN SOLVING OPEN-ENDED PROBLEMS? Wasilatul Murtafiah; Nurcholif Diah Sri Lestari; Faridah Hanim Yahya; Davi Apriandi; Edy Suprapto
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p133-150

Abstract

An open-ended problem in learning mathematics is a problem with more than one answer or method of solving. In solving open-ended problems in learning mathematics, one of the abilities students must use is decision-making ability. Each student has a variety of capacities, so this study aims to determine students' decision-making abilities in solving open-ended problems in learning mathematics. The type of research used is descriptive qualitative research. The subjects of this study were four students with different numbers of correct answers in working on open-ended problems. Data collection was carried out using tests and interviews. The results showed that (1) the decision-making ability of the subject who answers correctly for both problems is complete because they fulfill all indicators, the subject can identify goals, make decisions, evaluate the results of determination, and present and remember between problems with things known to the problem and related to decisions that have been taken correctly; (2) decision-making ability for subjects with wrong answers on one number or two numbers is incomplete because they only fulfilled two indicators, the subject can identify goals, make decisions, is less able to evaluate decision results and present and remember between problems with things known to the problem, and related to decisions that have been taken with correct. Mathematics teachers should often reinforce students to practice operating integers because it is a prerequisite for learning mathematics at the middle and high school levels.
ANALYSIS OF STUDENT'S ABILITY TO SOLVE MATHEMATICAL LITERACY PROBLEMS IN JUNIOR HIGH SCHOOLS IN THE CITY AREA Yulyanti Harisman; Dwita Elfri Mayani; Armiati Armiati; Hamdani Syaputra; Mohd Hasril Amiruddin
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p55-68

Abstract

Mathematical literacy problems require counting and solving mathematical problems in daily life. This study aims to analyze the ability of junior high school students to solve mathematical literacy problems. This qualitative research uses a case study approach with the subject of 15 junior high school students in the city area. The instrument in this study is six mathematical literacy questions oriented to PISA test questions and interview guidelines. The data analysis technique in this study is thematic analysis. This study's results show three groups of students' abilities in solving mathematical literacy problems based on their initial abilities: Time Stone, Power Stone, and Mind Stone
IS COMMUNICATING MATHEMATICS PART OF THE EASE OF ONLINE LEARNING FACTOR? Eka Fitria Ningsih; Sugiman Sugiman; C. Asri Budiningsih; Dita Surwanti
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p151-164

Abstract

In this study, we focus on self-disclosure, communicating mathematics, and infrastructure support in determining the ease of online learning for students of mathematics education study programs. The sample in this study were students (n=465) who were asked voluntarily to fill out an online questionnaire. Participants consisted of 335 female students (72%) and 130 male students (28%) from various universities in Indonesia. The data were analyzed quantitatively using structural equation modeling. The results of the path analysis show that the ease of online learning is influenced by self-disclosure, communicating mathematics, and infrastructure support. The R square results show that these factors influence 47%. Each path analysis shows that self-disclosure (r = 0.556 p= 0.000) and infrastructure support (r = 0.243 p = 0.000) have a significant positive relationship with the ease of online learning. Meanwhile, communicating mathematics (r = -0.025 p =0.507) has an insignificant negative relationship to the ease of online learning. Further research is needed to see how the impact of mathematical application support communicating mathematics in online learning.
DEVELOPING REALISTIC MATHEMATICS EDUCATION-BASED WORKSHEETS FOR IMPROVING STUDENTS' CRITICAL THINKING SKILLS Reza Lestari; Rully Charitas Indra Prahmana; Maureen Siew Fang Chong; Masitah Shahrill
Jurnal Infinity Vol 12 No 1 (2023): VOLUME 12, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i1.p69-84

Abstract

Applying critical thinking is an essential skill in the 21st century. However, teaching materials that do not facilitate students to improve these skills impact the achievement of learning objectives. Therefore, educators need appropriate teaching materials that encourage students to enhance their thinking skills. This study aims to develop teaching materials based on Realistic Mathematics Education (RME) to improve students’ critical thinking skills. The development model used is ADDIE consisting of Analysis, Design, Development, Implementation, and Evaluation phases. The instruments used, consist of validated student worksheets based on material experts and media experts, pretest questions, posttest questions, and the practicality of student worksheets. The results showed that the student worksheets developed were feasible regarding validity, practicality, and effectiveness. The validity of the student worksheets is indicated by the average score of two material expert validators and two media expert validators, each of which is in the good and excellent categories. The practicality of the student worksheets is denoted by the average value of student assessments included in the practical category. Then its effectiveness is shown by increasing students’ critical thinking skills after being given intervention using the student worksheets.

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