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All Journal Jurnal Math-UMB.EDU AFORE: Jurnal Pendidikan Matematika Ininnawa: Jurnal Pengabdian Masyarakat International Journal of Education, Vocational and Social Science PESHUM Issues in Mathematics Educations (IMED)
Usman Mulbar
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Humanities Decision Sciences, Operations Research & Management Education Energy Engineering Languange, Linguistic, Communication & Media Mathematics Public Health Social Sciences Other

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Deskripsi Kemampuan Pemecahan Masalah Matematika Siswa Ditinjau dari Tipe Kepribadian Menurut Keirsey Awi; Usman Mulbar; Sahriani
Issues in Mathematics Education (IMED) Vol. 5 No. 1 (2021): Volume 5 Nomor 1 tahun 2021
Publisher : Program of Mathematics Education Department of Mathematics Faculty of Mathematics and Natural Sciences (FMIPA) Universitas Negeri Makassar (UNM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/imed19908

Abstract

This study aims to describe the student’s ability to solve mathematical problems with Polya's steps (understanding the problem, devising a plan, carrying out the plan and looking back,) viewed from personality types according to Keirsey. This research is descriptive-qualitative. The research subjects were 4 students from class XI of Senior High School, with one subject for each personality type. The research instrument uses personality type classification instruments, problem-solving tests, and interview guidelines. The results of the research showed that from each of the students with the type of Keirsey personality, in solve mathematical problems more tend to be on types of Guardian and Rational personalities, can do every step of Polya’s problem-solving. Next, are the Idealist and Artisan types which are still lacking at the steps certain solving the problem of the problems given.
Deskripsi Pengaruh Model Pembelajaran Think-Pair-Share Terhadap Self-efficacy Matematis Siswa Andi Nurul Fitriani; Usman Mulbar; Rusli
Issues in Mathematics Education (IMED) Vol. 5 No. 1 (2021): Volume 5 Nomor 1 tahun 2021
Publisher : Program of Mathematics Education Department of Mathematics Faculty of Mathematics and Natural Sciences (FMIPA) Universitas Negeri Makassar (UNM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/imed19909

Abstract

This study aims to determine the description of the influence of think-pair-share learning models on students' mathematical self-efficacy. The subjects of this study were IPS class X students in one of the high schools in Makassar. Taking the subject was done by giving a questionnaire test to students of class X IPS 3, then from these results 6 research subjects are chosen based on existing categories. The instrument used was a self-efficacy questionnaire containing 21 items that corresponded to the dimensions of self-efficacy and lesson plans that were in accordance with the syntax of the think-pairshare learning model. The results of the study showed that self-efficacy of the high category subjects had a good effect. That is because both subjects already have high strength, level, and magnitude dimensions. For self-efficacy, the medium category subject, after giving questions that were not too difficult at the initial meeting and different discussion processes, was able to influence their level dimensions. As for self-efficacy, it is low, because of the motivation given by the teacher and the success of them friends, the strength dimension and level experienced significant changes. However, because both subjects have inability to express opinions even though they have completed the task, so the generality dimension does not experience significant changes. The results of this study to give information about the effect of students' self-efficacy during the learning process so that in the learning process, teachers can help students understand the lessons according to their self-efficacy.
Penerapan Model Pembelajaran Berbasis Masalah dengan Strategi Pembelajaran Diferensiasi pada Peserta Didik Kelas VIII Usman Mulbar; H. Bernard; Rian Rasmi Pesona
Issues in Mathematics Education (IMED) Vol. 1 No. 1 (2017): Volume 1 Nomor 1 Tahun 2017
Publisher : Program of Mathematics Education Department of Mathematics Faculty of Mathematics and Natural Sciences (FMIPA) Universitas Negeri Makassar (UNM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/imed9244

Abstract

This research is classroom-action research, which aims to increase both pupils' activity and achievement in mathematics. The subjects of this research is the students of class VIII which consisted of 30 students. Technique of collecting data using instrument: (1) pre-test, (2) observation sheet of teacher activity, (3) observation sheet of students activity, and (4) the learning outcome test. The data were analyzed using descriptive statistical analysis and descriptive analysis. The results show that (1) teacher activity increased, (2) students activity increased, (3) the average of students mathematics learning achievementare above the value of minimal criteria with a classical completeness level of 86,67%. From the research result can be concluded that the implementation of problem-based learning modeleith differentiation learning strategies can improve student learning achievement of class VIII.
Metakognisi Siswa SMA dalam Menyelesaikan Masalah Matematika Usman Mulbar; Alimuddin; St. Mukarramah
Issues in Mathematics Education (IMED) Vol. 5 No. 2 (2021): Volume 5 Nomor 2 Tahun 2021
Publisher : Program of Mathematics Education Department of Mathematics Faculty of Mathematics and Natural Sciences (FMIPA) Universitas Negeri Makassar (UNM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/imed23840

Abstract

This research is a descriptive research that aims to describe the metacognition of high school students in solving mathematical problems regarding students' academic abilities. The subjects were students in grade XI on a High School that selected based on certain criteria with snowball sampling technique. The data were collected through problem-solving test which was supported by interview data. Based on the research result, can be concluded that students with high and low academical abilities had an awareness of the facts they had and were aware of how to use a strategy. However, only high-ability students had an awareness of when and why a strategy should be applied. It showed that in solving mathematical problems students with high academical ability involve three aspects of metacognitive knowledge namely declarative knowledge, procedural knowledge, and conditional knowledge nicely, while students with low academical ability only involve two aspects of metacognitive knowledge i.edeclarative knowledge and procedural knowledge.
Deskripsi Kemampuan Numerasi Berdasarkan Kemampuan Matematika Siswa Kelas VIII SMP Usman Mulbar; Alfiah Salsabila; Nasrullah
Issues in Mathematics Education (IMED) Vol. 9 No. 2 (2025): Volume 9 Nomor 2 Tahun 2025
Publisher : Program of Mathematics Education Department of Mathematics Faculty of Mathematics and Natural Sciences (FMIPA) Universitas Negeri Makassar (UNM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/imed.v9i2.8036

Abstract

Penelitian ini bertujuan untuk mendeskripsikan kemampuan numerasi berdasarkan kemampuan matematika siswa. Jenis penelitian ini adalah penelitian kualitatif dengan pendekatan deskriptif. Subjek penelitian ini adalah siswa kelas VIII SMP Negeri 1 Marioriawa yaitu sebanyak 6 siswa, yaitu 2 siswa dengan kategori kemampuan matematika tinggi, 2 siswa dengan kategori kemampuan matematika sedang, dan 2 siswa dengan kemampuan matematika rendah. Instrumen penelitian ini adalah tes kemampuan matematika, tes kemampuan numerasi, dan pedoman wawancara. Hasil penelitian ini menunjukkan bahwa siswa dengan kemampuan matematika tinggi dapat memenuhi dua dari tiga indikator numerasi yaitu menganalisis informasi yang ditampilkan dalam berbagai bentuk dan menggunakan angka dan simbol-simbol yang terkait dengan matematika dasar untuk memecahkan masalah praktis dalam berbagai macam konteks kehidupan sehari-hari. Siswa dengan kemampuan matematika sedang dapat memenuhi satu dari tiga indikator numerasi yaitu menganalisis informasi yang ditampilkan dalam berbagai bentuk. Siswa dengan kemampuan matematika rendah tidak dapat memenuhi ketiga indikator numerasi.
ANALISIS KESULITAN BELAJAR MATEMATIKA PADA MATERI TRIGONOMETRI TINGKAT SMA/SMK Kasmawati; Usman Mulbar
Afore : Jurnal Pendidikan Matematika Vol 4 No 2 (2025): Afore : Jurnal Pendidikan Matematika
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/afore.v4i2.3886

Abstract

This study aims to analyze the learning difficulties in mathematics specifically in the topic of trigonometry at the senior high school (SMA/SMK) level. The background of the study highlights that abstract concepts such as sine, cosine, tangent functions, identities, and equations often pose challenges for students. These difficulties are largely caused by a lack of basic geometric understanding, limited ability to visualize angles, and a curriculum that is not fully adaptive to students’ learning needs. The absence of these foundational skills makes it challenging for students to relate trigonometric concepts to real-life contexts, thereby reducing the effectiveness of learning. The research method employed is a secondary literature analysis from various reliable sources, including case studies, student surveys, and evaluations of the national curriculum. This approach enables the identification of patterns of learning difficulties qualitatively while also examining factors that influence students’ comprehension levels. The analysis results indicate that the main challenges include understanding abstract concepts (42%), applying formulas (35%), and learning motivation (23%). External factors, such as conventional teaching methods that lack variety and limited learning resources, further exacerbate the problem. Based on these findings, the study recommends innovative learning approaches, such as the use of digital technology, interactive media, and project-based learning relevant to everyday life. These approaches are expected to enhance student understanding, encourage active engagement, and reduce achievement gaps. This research aims to provide practical contributions for educators and policymakers to improve the effectiveness of trigonometry instruction at the senior high school level.
MENINGKATKAN KOMPETENSI PEDAGOGIK GURU DENGAN INOVASI MODEL PEMBELAJARAN MATEMATIKA BERBASIS MATEMATIKA REALISTIK MELALUI KEGIATAN PKM Usman Mulbar; Ahmad Zaki; Hisyam Ihsan; Khadijah; Sutamrin
Ininnawa : Jurnal Pengabdian Masyarakat Vol. 2 No. 1 (2024): Volume 02 Nomor 01 (April 2024)
Publisher : Program Studi Manajemen FEB UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/ininnawa.v2i1.2298

Abstract

Program PKM dilakukan dengan metode memberikan pelatihan, bimbingan, dan pendampingan kepada peserta mengenai pelatihan inovasi model pembelajaran berbasis matematika realistik yang dilakukan secara luring. Tujuan pelaksanaan PKM yaitu (1) untuk meningkatkan kompetensi dan pengetahuan peserta mengenai inovasi pengembangan model-model pembelajaran, (2) untuk meningkatkan pengetahuan mengenai pembelajaran matematika realistik, (3) untuk meningkatkan kemampuan dan keterampilan peserta mengintergrasikan pembelajaran matematika realistik dalam proses pembelajaran, dan (4) peserta dapat mengimplementasikan pelaksanaan pembelajaran matematika realistik dalam proses pembelajaran. Kegiatan PKM dilaksanakan pada SD Negeri 2 Malino Kecamatan Tinggi Moncong, Kabupaten Gowa, Provinsi Sulawesi Selatan kemudian dilanjutkan dengan pembimbingan dan pendampingan kepada peserta secara daring. Peserta kegiatan PKM adalah guru-guru Sekolah Dasar di Malino Kecamatan Tinggi Moncong. Materi yang disajikan dalam kegiatan PKM yaitu (1) teori & konsep: pembelajaran matematika realistic, (2) pengembangan model pembelajaran berbasis matematika realistic, dan (3) implementasi pembelajaran matematika realistik dalam pembelajaran di sekolah. Hasil yang diperoleh dalam kegiatan program PKM yaitu (1) meningkatnya kompetensi dan pengetahuan peserta mengenai inovasi pengembangan model-model pembelajaran, (2) meningkatnya pengetahuan mengenai pembelajaran matematika realistik, (3) meningkatnya kemampuan dan keterampilan peserta mengintergrasikan pembelajaran matematika realistik dalam proses pembelajaran, dan (4) peserta dapat mengimplementasikan pelaksanaan pembelajaran matematika realistik dalam proses pembelajaran. Luaran/output kegiatan PKM yaitu (1) laporan hasil pelaksanaan PKM, (2) artikel ilmiah yang dipublikasikan dalam prosiding ber-ISBN dari seminar nasional, (3) artikel pada media massa cetak/elektronik, (4) video yang kegiatan yang dipublikasikan secara luas pada media online youtube, dan (5) adanya peningkatan keberdayaan mitra sesuai permasalahan yang dihadapi.
Literature Review: Analisis Peran Orang Tua Terhadap Prestasi Belajar Matematika Siswa Nope, Rosiani Feti Thanelab; Usman Mulbar
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 5 No. 1: Desember 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v5i1.12717

Abstract

Penelitian ini bertujuan untuk menganalisis dan mensintesis bukti dari berbagai studi sebelumnya yang mengeksplorasi bagaimana peran orang tua mempengaruhi prestasi matematika siswa. Dengan menggunakan metode literature review, penelitian ini menggunakan 18 artikel jurnal nasional dan internasional yang diterbitkan antara tahun 2016 dan 2025. Temuan penelitian ini mengungkapkan bahwa peran aktif orang tua secara signifikan dan positif memengaruhi prestasi matematika siswa. Pengaruh ini terwujud baik secara langsung maupun tidak langsung, karena dukungan orang tua meningkatkan motivasi belajar, kepercayaan diri, stabilitas emosi, dan kesejahteraan mental siswa secara keseluruhan. Oleh karena itu, hasil penelitian ini menekankan bahwa orang tua memainkan peran yang krusial dan multifaset dalam mendorong keberhasilan akademik siswa, khususnya di bidang matematika. Namun, efektivitas peran tersebut bersifat kontekstual dan dipengaruhi oleh faktor-faktor seperti minat belajar, kemandirian, latar belakang sosial ekonomi, serta pendekatan pembelajaran di rumah. Pada anak usia dini, kegiatan pembelajaran berbasis rumah, seperti metode Montessori dan pembelajaran berbasis cerita matematika, terbukti efektif dalam menumbuhkan minat serta pemahaman numerasi. Secara umum, temuan sintesis menunjukkan bahwa sinergi kolaboratif antara sekolah dan keluarga memainkan peran penting dalam membangun suasana belajar yang suportif dan produktif. Kerja sama tersebut tidak hanya membantu membentuk karakter belajar mandiri siswa, tetapi juga berkontribusi signifikan terhadap peningkatan prestasi matematika.
ANALISIS DAMPAK LINGKUNGAN BELAJAR TERHADAP RENDAHNYA PEMAHAMAN KONSEP MATEMATIKA PADA MATERI ALJABAR SISWA SMP Nurhana; Usman Mulbar
Afore : Jurnal Pendidikan Matematika Vol 4 No 2 (2025): Afore : Jurnal Pendidikan Matematika
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/afore.v4i2.3887

Abstract

This study aims to conduct an in-depth analysis of the impact of the learning environment on students’ low understanding of mathematical concepts, particularly in algebra topics among junior high school students. The learning environment is an essential factor that plays a major role in determining students’ success in comprehending abstract mathematical concepts that require logical thinking skills. This research employs a theoretical review or literature study method by examining various scholarly sources such as journals, books, and previous research findings relevant to the topic. Data collection techniques were carried out through analysis, comparison, and synthesis of information from various references. The results of the study indicate that the condition of the learning environment, both physical and non-physical, has a significant influence on students’ understanding of algebraic material. Factors such as classroom noise, inadequate lighting, limited learning facilities, low motivation, and less conducive social interactions have been proven to reduce students’ concentration and interest in learning mathematics. Therefore, it can be concluded that efforts to improve students’ understanding of mathematical concepts must be accompanied by creating a comfortable, interactive, and creative learning environment that motivates students to think critically and participate actively in the learning process.
Co-Authors Ahmad Zaki Alfiah Salsabila Alimuddin Amirullah Andi Nurul Fitriani Asdar Asriwan Awi Clara Julia Tekkay H. Bernard Hasanah Nur Hisyam Ihsan Ilham Minggi Ismail T Kasmawati Khadijah Muhammad Akil Muhammad Darwis M Nasrullah Nope, Rosiani Feti Thanelab Nurhana Nuridayanti Nurwati Djam’an Purnamawati R, Nurmala Rian Rasmi Pesona Rosidah Rusli Sahid Sahriani St. Mukarramah Sutamrin Talib, Dr. Ahmad Wa Ode NurRadhiah Ridjalu Wahidir Ali Widyarti Hakman Wiwik Handayani Yulinar