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All Journal Journal on Mathematics Education (JME) Journal on Mathematics Education (JME) Journal of Research and Advances in Mathematics Education JTAM (Jurnal Teori dan Aplikasi Matematika) Beta: Jurnal Tadris Matematika JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Kognitif: Jurnal Riset HOTS Pendidikan Matematika Journal of Math Tadris (jMt) Participative Journal (PJ) : Jurnal Pengabdian Pada Masyarakat Alifbata: Jurnal Pendidikan Dasar Pedagogy : Jurnal Pendidikan Matematika VARIANSI: Journal of Statistics and Its Application on Teaching and Research Jurnal Edumatic : Jurnal Pendidikan Matematika Journal on Mathematics Education
Mahfudy, Sofyan
Universitas Islam Negeri Mataram
Religion Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Library & Information Science Mathematics Social Sciences Other

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PRE-SERVICE MATHEMATICS TEACHER’S ABILITY IN DESIGNING MATHEMATICAL TASK: AN ANALYSIS OF LESSON PLANS Mahfudy, Sofyan; Mauliddin, Mauliddin
JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Vol 10, No 2 (2024)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/jp2m.v10i2.6525

Abstract

Mathematical tasks have an essential role in the mathematics learning process. Well-designed mathematical tasks will provide a learning opportunity for students to develop their mathematical ideas. The ability of pre-service mathematics teachers to design mathematical tasks during their academic studies significantly influences how they teach in actual learning. One of the ways to investigate pre-service mathematics teachers' ability to design tasks is by analyzing the tasks in the lesson plans they proposed. This study aims to scrutinize the level of cognitive demand for mathematics tasks designed by pre-service mathematics teachers in their lesson plans to get a thorough understanding of their ability to design tasks. This descriptive qualitative research analyzed mathematical tasks in 25 lesson plans proposed by pre-service mathematics teachers using the framework developed by Stein and Smith (1998). The results of this study show that most pre-service teachers designed tasks with a lower cognitive demand classification with types of memorization and procedures without connections. The mathematical tasks designed by pre-service mathematics teachers also have yet to lead to argumentation and the development of mathematical ideas through exploration or doing mathematics. Thus, based on the findings in this study, designing mathematics tasks with the potential to promote students' mathematical understanding remains a challenge for pre-service mathematics teachers. This article discusses and presents the implications of research results and recommendations for designing mathematical tasks.
Profil number sense siswa berprestasi pada materi pecahan Hidayati, Nurul; Al Kusaeri, Al Kusaeri; Mahfudy, Sofyan
Jurnal of Math Tadris Vol 1 No 1 (2021): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (471.029 KB) | DOI: 10.55099/jmt.v1i1.4

Abstract

Kepekaan bilangan (number sense) merupakan aspek yang harus dikuasai dengan baik oleh setiap siswa yang belajar matematika, sebab dapat membantu pemahaman mereka terhadap makna bilangan dan operasinya dengan lebih baik. Di sisi lain, siswa berprestasi di sekolah terkadang memiliki kemampuan matematika yang kurang baik. Penelitian ini bertujuan untuk menganalisis dan mendeskripsikan profil number sense siswa berprestasi pada materi pecahan kelas VII sekolah menengah pertama. Penelitian ini menggunakan pendekatan kualitatif jenis deskriptif. Pengambilan subjek menggunakan teknik purposive sampling, dengan jumlah subjek 3 siswa berprestasi di kelas VII. Instrumen soal tes number sense (TNS) dan pedoman wawancara dikembangkan peneliti. Prosedur pengumpulan data menggunakan tes dan wawancara. Analisis data menggunakan tiga tahap menurut teori Miles dan Huberman dengan mengacu kepada setiap komponen number sense beserta indikatornya. Hasil penelitian ini menunjukkan bahwa kemampuan number sense siswa berprestasi di sekolah menengah pertama pada materi pecahan cukup baik, terutama pada aspek memahami konsep bilangan, representasi urutan bilangan, perhitungan, dan strategi menghitung. Namun demikian, beberapa indikator number sense belum terpenuhi, yaitu menunjukkan pecahan yang terdapat di antara dua pecahan serta menggambarkannya pada garis bilangan. Siswa berprestasi juga belum baik dalam hal pengoperasian bilangan dan pernyataan yang setara
Metakognisi siswa dalam pemecahan masalah matematika ditinjau dari gaya belajar Roni Irwansyah, Roni Irwansyah; Sofyan Mahfudy, Sofyan Mahfudy
Jurnal of Math Tadris Vol 1 No 2 (2021): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (790.839 KB) | DOI: 10.55099/jmt.v1i2.32

Abstract

The purpose of this study was to describe students' metacognition in solving mathematical problems in terms of learning styles. The method in this research is descriptive qualitative. The subjects in this study were students. Data collection techniques used are questionnaires, tests and interviews. The analysis technique used consists of three components, namely data reduction, data presentation, and drawing conclusions. The results of this study indicate that there are differences in students' metacognition processes, namely: a) The metacognitive process of visual students is moderate. It can be seen when students plan, use information from problems to answer questions well. When monitoring, students check the information obtained when solving a given problem. When evaluating, students are incomplete in writing the final results at the conclusion. b) The process of auditory students' metacognition is lacking. It can be seen when students plan, do not draw and write down the information provided. When monitoring, students check the information obtained when solving a given problem. When evaluating, students re-check the completion that has been done but the final result is incomplete. c) High kinesthetic students' metacognition process. It can be seen when students plan, explain and write down what is in the problem, describe and write down what is known and asked about the problem. When monitoring, students choose the concept of completion correctly, apply the information obtained to concepts that have been thought out and are thorough in answering questions and believe that the answer process is correct. When evaluating, accuracy in writing the final results that have been done rightly and correctly.
Etnomatematika: Eksplorasi Objek Dan Aktivitas Matematika Pada Bentuk Jajanan Tradisional Masyarakat Lombok, Indonesia Rahmasari , Aulia; Al Kusaeri , Al Kusaeri; Mahfudy, Sofyan
Jurnal of Math Tadris Vol 2 No 1 (2022): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55099/jmt.v2i1.41

Abstract

This study aims to determine the traditional snacks of the Sakra community, the mathematical objects contained in the traditional snacks of the Sakra people, and the mathematical activities contained in the process of making and selling traditional snacks of the Sakra people. In this study, the researcher used a qualitative approach with an ethnographic type of approach. This research was conducted in Sakra District, East Lombok Regency, NTB, especially in the area of ​​Sakra traditional snack traders. Based on the results of the analysis of the discussion in this study, it can be concluded that temerodok and jaje kaok are traditional snacks from Sakra village. These two snacks have an important role in the customs of the Sakra community and also in helping the economy of the Sakra village community. The results of the identification of the traditional forms of the Sakra people's snacks (temerodok and jaje kaok) can be concluded that there are mathematical objects in these two snacks, namely crescent moons, ellipses, parabolic curves, and rectangles and blocks. And based on the results of the analysis of the Sakra community's activities in making traditional snacks, forms/patterns of snacks and in the process of selling traditional snacks, it can be concluded that there are mathematical activities in the two traditional snacks, namely counting activities, measuring activities, designing activities, and explaining activities.
Identifikasi kesulitan siswa dalam memecahkan masalah geometri berdasarkan tingkatan berfikir Van Hiele Mahfudy, Sofyan; Afriana, Hanna
Jurnal of Math Tadris Vol 4 No 2 (2024): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55099/jmt.v4i2.163

Abstract

Several previous studies have shown students' low achievement in learning Geometry. However, the diversity of students' abilities affects their perspectives and ways of thinking in the learning process. Investigation of students' difficulties in solving Geometry problems based on their level of thinking is necessary to gain actual knowledge. Identifying student difficulties will help the teacher design effective lessons to address these issues. This research aims to identify and describe students' difficulties in solving geometry problems based on Van Hiele's level of thinking. This study used a qualitative approach with data analysis that entailed data reduction, data presentation, and conclusion. The subjects of this study were 3 students in the second academic year in junior high school who were purposively selected from 15 students who participated in the Van Hiele thinking levelling test. The results show that the stage of Van Hiele's thinking that students have achieved was Level 2 (informal conclusion). Students with Level 0 of thinking tend to have difficulty on understanding the concept of area of geometric shapes and unable to develop problem solving steps. Meanwhile, students at Level 1 had difficulty in obtaining alternative solutions to the problem of the concept of the area of geometry.
Kemampuan Computational Thinking Siswa Ditinjau dari Adversity Quotient dan Gender di MTs Negeri Lombok Tengah Firza, M. Sandi; Negara, Habibi Ratu Perwira; Mahfudy, Sofyan
Alifbata : Jurnal Pendidikan Dasar Vol 5 No 1 (2025): Alifbata
Publisher : STAI Darul Kamal Darul Kamal NW Kembang Kerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51700/alifbata.v5i1.906

Abstract

This study aims to explain the computational thinking ability of students at MTs Negeri 2 in Central Lombok in terms of adversity quotient and gender. The research method used is a quantitative approach with a causal-comparative research design. The research sample consisted of 136 grade VIII students, consisting of 62 male students and 74 female students. The instruments used in this study included a computational thinking ability test consisting of 2 essay questions and a questionnaire to measure adversity quotient with 24 statements. The results of the study showed that: 1) there is a significant effect of adversity quotient on students' computational thinking ability; 2) there is no significant effect of gender on students' computational thinking ability; and 3) the interaction between adversity quotient and gender does not show a significant effect on students' computational thinking ability. The contribution of this study provides new insights into how adversity quotient affects students' computational thinking, which can be the basis for developing more effective learning strategies in the future.
Analisis Kemampuan Computational Thinking Siswa dalam Menyelesaikan Masalah Aritmetika Sosial Husnani, Tami Maulida; Mahfudy, Sofyan; Afifurrahman, Afifurrahman
Alifbata : Jurnal Pendidikan Dasar Vol 5 No 1 (2025): Alifbata
Publisher : STAI Darul Kamal Darul Kamal NW Kembang Kerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51700/alifbata.v5i1.929

Abstract

This study aims to analyze students' computational thinking (CT) skills in solving problems in social arithmetic materials and identify the influence of mathematical initial ability (KAM) on the achievement of CT aspects. This study uses a qualitative approach with a case study type of research. The research subjects consisted of 31 students of class VIII A who were selected through the purposive sampling technique. The data was analyzed using three main stages, namely data reduction, data presentation, and conclusion drawn. The results showed that students with high KAM were able to meet all CT indicators, especially in questions with low difficulty. Students with KAM are showing good achievement but still need reinforcement at the abstraction stage to solve problems systematically. Meanwhile, students with low KAM face difficulties in almost all aspects of CT. This research contributes to the approach to mathematics learning to formulate problems, including identifying the initial ability of mathematics and finding solutions in a systematic way.
Partitive fraction division: Revealing and promoting primary students’ understanding Wahyu, Kamirsyah; Kuzu, Taha Ertugrul; Subarinah, Sri; Ratnasari, Dwi; Mahfudy, Sofyan
Journal on Mathematics Education Vol. 11 No. 2 (2020): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Students show deficient understanding on fraction division and supporting that understanding remains a challenge for mathematics educators. This article aims to describe primary students’ understanding of partitive fraction division (PFD) and explore ways to support their understanding through the use of sequenced fractions and context-related graphical representations. In a design-research study, forty-four primary students were involved in three cycles of teaching experiments. Students’ works, transcript of recorded classroom discussion, and field notes were retrospectively analyzed to examine the hypothetical learning trajectories. There are three main findings drawn from the teaching experiments. Firstly, context of the tasks, the context-related graphical representations, and the sequence of fractions used do support students’ understanding of PFD. Secondly, the understanding of non-unit rate problems did not support the students’ understanding of unit rate problems. Lastly, the students were incapable of determining symbolic representations from unit rate problems and linking the problems to fraction division problems. The last two results imply to rethink unit rate as part of a partitive division with fractions. Drawing upon the findings, four alternative ways are offered to support students’ understanding of PFD, i.e., the lesson could be starting from partitive whole number division to develop the notion of fair-sharing, strengthening the concept of unit in fraction and partitioning, choosing specific contexts with more relation to the graphical representations, and sequencing the fractions used, from a simple to advanced form.
Pengaruh Penerapan Realistic Mathematic Education berbantuan GeoGebra terhadap Kemampuan Berfikir Kreatif Siswa di Sekolah Menengah Pertama Islam Tarbiyatusshibyan Hadi, Sopian; Andriani, Parhaini; Mahfudy, Sofyan
Jurnal of Math Tadris Vol 5 No 1 (2025): Journal of Math Tadris (jMt)
Publisher : Mathematic Education Departement, State Islamic University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55099/jurmat.v5i1.189

Abstract

This study aims to determine the effect of the implementation of the Realistic Mathematics Education (RME) model assisted by GeoGebra on the creative thinking skills of junior high school students. The study used a quantitative approach with a posttest-only control group design. The subjects of the study were grade VIII students at SMP Islam Tarbiyatusshibyan Beremi who were divided into two groups, namely the experimental class that received learning with the RME model assisted by GeoGebra and the control class that used conventional learning. The instrument used was a descriptive test of mathematical creative thinking skills. The results of data analysis showed that there was a significant difference between the creative thinking skills of students in the experimental class and the control class. This shows that the implementation of RME assisted by GeoGebra has a positive effect on improving students' creative thinking skills. Thus, the RME learning model assisted by GeoGebra can be an effective alternative in improving the quality of mathematics learning at the junior high school level
Kemampuan Berpikir Kritis Mahasiswa Calon Guru Matematika dalam Menyelesaikan Masalah Geometri ditinjau dari Gaya Kognitif Samudra, Dias Ardian; Mahfudy, Sofyan; Negara, Habibi Ratu Perwira
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 5 No. 2 (2025): April - June 2025
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v5i2.3260

Abstract

Kemampuan berpikir kritis merupakan salah satu kompetensi utama yang perlu dimiliki oleh mahasiswa calon guru matematika, terutama dalam konteks penyelesaian masalah geometri yang memerlukan penalaran logis serta pemahaman konsep yang mendalam. Penelitian ini bertujuan untuk mendeskripsikan kemampuan berpikir kritis mahasiswa dalam menyelesaikan masalah geometri ditinjau dari perbedaan gaya kognitif, yaitu field-independent (FI) dan field-dependent (FD). Metode yang digunakan adalah pendekatan kualitatif dengan rancangan studi kasus eksploratif. Subjek penelitian terdiri dari empat mahasiswa yang telah diklasifikasikan berdasarkan hasil tes Group Embedded Figures Test (GEFT), yakni dua mahasiswa dengan gaya kognitif FI dan dua dengan gaya FD. Instrumen yang digunakan meliputi soal pemecahan masalah geometri serta pedoman wawancara semi-terstruktur. Teknik analisis data dilakukan melalui triangulasi antara data hasil tes dan wawancara dengan mengacu pada enam indikator berpikir kritis menurut Facione. Kami menemukan bahwa mahasiswa dengan gaya kognitif FI memperlihatkan kemampuan berpikir kritis yang lebih menonjol, khususnya dalam aspek interpretation, inference, dan evaluation. Mereka mampu menyusun argumen secara mandiri dan menunjukkan refleksi terhadap strategi penyelesaian yang digunakan. Sebaliknya, mahasiswa bergaya FD cenderung menyusun pembuktian secara prosedural dan intuitif, tetapi lemah dalam penjabaran konsep secara formal serta kurang melakukan evaluasi terhadap proses penyelesaiannya. Hasil ini menunjukkan bahwa gaya kognitif berpengaruh terhadap kualitas berpikir kritis mahasiswa dalam konteks pembuktian geometri. Oleh karena itu, disarankan agar proses pembelajaran disusun secara adaptif dan mempertimbangkan variasi gaya kognitif guna mendukung pengembangan kemampuan berpikir kritis secara optimal pada mahasiswa calon guru matematika.
Co-Authors Afifurrahman Afifurrahman Afriana, Hanna Al Kusaeri , Al Kusaeri Al Kusaeri, Al Kusaeri Alfira Mulya Astuti, Alfira Mulya desventri etmy desventri etmy, desventri dewi, septia Dwi Ratnasari Dwi Ratnasari Dwi Ratnasari Erpin Evendi Firza, M. Sandi Habibi Ratu Perwira Negara Hadi, Sopian Husnani, Tami Maulida Kamirsyah Wahyu Kamirsyah Wahyu Kamirsyah Wahyu Kamirsyah Wahyu Kamirsyah Wahyu, Kamirsyah Kurniawan Arizona Kuzu, Taha Ertugrul Lalu Sucipto Mauliddin Mauliddin Mauliddin, Mauliddin Mulhamah Mulhamah, Mulhamah Nasrullah, Ahmad Nurul Azmia Dwi Shandy Nurul Hidayati Parhaini Andriani, Parhaini Rahmasari , Aulia Roni Irwansyah, Roni Irwansyah Samsul Irpan Samudra, Dias Ardian Sri Subarinah Sri Subarinah, Sri Taha Ertugrul Kuzu Zaskiya, Zaskiya