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All Journal Jurnal Infinity Jurnal Elemen Journal of Research and Advances in Mathematics Education JPPM (JURNAL PENELITIAN DAN PEMBELAJARAN MATEMATIKA) MUST: Journal of Mathematics Education, Science and Technology Jurnal Pengabdian Pada Masyarakat SJME (Supremum Journal of Mathematics Education) JUMLAHKU: Jurnal Matematika Ilmiah STKIP Muhammadiyah Kuningan Jurnal Riset Pembelajaran Matematika Sekolah Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika Indo-MathEdu Intellectuals Journal Jurnal Didactical Mathematics Prosiding Sesiomadika Polinomial : Jurnal Pendidikan Matematika Jurnal Infinity Jurnal Matematika Ilmiah Universitas Muhammadiyah Kuningan Papanda Journal of Community Service
Umbara, Uba
Program Studi Pendidikan Matematika STKIP Muhammadiyah Kuningan
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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IMPLEMENTATION OF REALISTIC MATHEMATICS EDUCATION BASED ON ADOBE FLASH PROFESSIONAL CS6 TO IMPROVE MATHEMATICAL LITERACY Uba Umbara; Zuli Nuraeni
Jurnal Infinity Vol 8 No 2 (2019): Volume 8 Number 2, Infinity
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v8i2.p167-178

Abstract

Students' mathematical literacy abilities are important to master, especially to formulate mathematical concepts that can be used in everyday life. Mathematical literacy has become an important issue lately to be developed in the study of mathematics learning. However, mathematical literacy has not become the main goal in the implementation of the learning carried out. The purpose of this study was to examine the comparison of students 'mathematical literacy skills with Adobe Flash Professional CS6-based RME learning with conventional learning and to examine the comparison of improvement in students' mathematical literacy skills with Adobe Flash Professional CS6-based RME learning with conventional learning. The research method used in this study was quasi-experimental with the design of a non-equivalent control group design. The results of the two research hypotheses were accepted. It is possible that the increase in students' mathematical literacy skills is triggered by the Adobe Flash Professional CS6-based RME learning which in the implementation of learning always focuses on self regulated learning.
Combination of mathematical literacy with ethnomathematics: How to perspective sundanese culture Uba Umbara; Sufyani Prabawanto; Mohamad Gilar Jatisunda
Jurnal Infinity Vol 12 No 2 (2023): VOLUME 12, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v12i2.p393-414

Abstract

Mathematical literacy and ethnomathematics are the two main approaches to understanding mathematics in everyday life. Research on the two aspects should be conducted in an integrated manner. It is expected to be a reference for the development of urban mathematics education based on the social requirements of mathematics and individuals' mathematical competence in a cultural group. The primary goal of this research is to describe the Sundanese people's mathematical literacy through an ethnomathematical perspective. The research is focused on living equipment systems and technology, which is one of the elements of the seven universal culture elements. The study employed phenomenographic and ethnomethodological approaches with a realist ethnographic design. Participant observations and interviews were chosen as data collection techniques, while content analysis, triangulation, and identification of patterns were chosen as data analysis techniques. Ethnomathematics in living equipment systems and technology consists of counting, measuring, explaining, discovering, designing, and explaining activities. The results show that the ethnomathematics of the Sundanese community are relevant to the aspects of mathematical literacy consisting of content, context, and mathematical processes. The study's results emphasize that mathematical literacy and ethnomathematics cannot be separated from daily life.
Penerapan Didactical Design Research (DDR) Pada Materi Teorema Pythagoras di Kelas VIII SMP Negeri 3 Kuningan Siska Nurfadilah Sri Kusumah; Umbara, Uba
Didactical Mathematics Vol. 7 No. 1 (2025): April 2025
Publisher : Program Studi Pendidikan Matematika, Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/dm.v7i1.12464

Abstract

Penelitian ini adalah penelitian Didactical Design Research (DDR) dengan pendekatan kualitatif. Subjek pada penelitian ini adalah sebanyak 33 (tiga puluh tiga) orang siswa kelas VIII A SMP Negeri III. Penelitian ini bertujuan untuk: 1) mengetahui kesulitan belajar dan lintasan belajar siswa dalam proses belajar matematika pada materi teorema Pythagoras; 2) mengetahui desain didaktis yang dikembangkan guna mengatasi kesulitan belajar dalam proses belajar matematika pada materi teorema Pythagoras; 3) mengetahui respon siswa saat implementasi desain didaktis dalam proses belajar matematika pada materi teorema Pythagoras; dan 4) mengetahui gambaran desain didaktis empirik yang dihasilkan dari penerapan desain didaktis pada konsep teorema Pythagoras. Hasil dari penelitian ini menunjukan bahwa: 1) teridentifikasi tiga kategori learning obstacle yang dialami siswa yakni: hambatan ontogenik (ontogenical obstacle), hambatan epistemologis (epistemological obstacle), dan hambatan didaktis (didactical obstacle); 2) desain didaktis dirancang kedalam empat desain didaktis, dengan menerapkan pendekatan teori APOS; 3) learning obstacle dapat diatasi dengan implementasi desain didaktis; 4) desain empirik merupakan gabungan dari keempat desain yang telah melalui tahapan revisi dan berhasil diimplementasikan secara optimal
Pre-service mathematics teacher conducting prospective analysis: A case study on practice didactical design research Jatisunda, Mohamad Gilar; Suryadi, Didi; Prabawanto, Sufyani; Umbara, Uba
Jurnal Infinity Vol 14 No 1 (2025): VOLUME 14, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v14i1.p21-44

Abstract

This study aims to understand how pre-service mathematics teachers conduct prospective analyses comprehensively. A qualitative research method with a case study design was used. The participant was Mrs N, a pre-service mathematics teacher who conducted research using DDR methodology in a grade 9 junior high school in Sindang, Majalengka, involving 48 students. Data were collected by analyzing empirical evidence from Mrs. N's prospective analysis process by uncovering the various stages of a prospective analysis. An iterative approach was used to analyze the data by refining the research questions through discussions and regular meetings with Mrs. N. The process ensured adaptability to new insights and understandings from the empirical data. Our findings reveal that the teacher draws upon fundamental philosophical principles from didactical design research, including hermeneutics, phenomenology, and ethnomethodology. By embracing these approaches, the teacher gains valuable insights into conducting research within an interpretive paradigm, allowing for a deeper exploration of the meaning of concepts, the purpose of learning, and the cultural influences that shape the educational process. Additionally, our study sheds light on the emergence of transpositional didactics theory as the prospective teacher delves into understanding the meaning of the geometrics transformation concept.
Implementasi Pembelajaran dengan Pendekatan BrainBased Learning terhadap Kemampuan Koneksi Matematis Siswa Yuli Sahara; Uba Umbara
JUMLAHKU: Jurnal Matematika Ilmiah STKIP Muhammadiyah Kuningan Vol 3 No 2 (2017): Edisi Vol 3 No 2 November
Publisher : Program Studi Pendidikan Matematika STKIP Muhammadiyah Kuningan

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Abstract

The purpose of this is to know the ability of mathematical connections ofstudents in learning mathematics with mathematical connections ability of studentsusing Brain-Based Learning.The population in this study are students of SMPN 2Kadugede, while the sample in this study were students of grade VII SMPN 2Kadugede. Sampling technique in this research use purposive sampling, in twoclasses to determine experiment class and control class.The experimental classreceive the learning by using the Brain-based Learning approach, while the controlclass receive the learning by using Direct Intruction approach.The research instrumentthat is test sheets of 6 problem description form. From the test result of mathematicalconnection ability of students obtained the average of initial test of the experimentalclass is 2.96 and the control class average is 3.75. While in the final test the averageexperiment class is 26.08 and the control class is 11.05.The data analysis techniqueuses the t-test to test the statistical hypothesis. From the this calculation obtained thetvalue of calculated equality test of two averages of 1.02 then on the ttable at 5%significance level and degrees of freedom 49, obtained table value 2.011 because -2.011 <1.02 <2.011 then H0 is accepted, meaning no difference between The initialtest grade of the experimental class and the control class.While at two difference oftwo average obtained t value 8,23 then at ttabel at 5% significance level and degree offreedom 46 obtained value ttable 2.011 because 2,011> 8,23 then H1 accepted, thatmean ability mathematical connection of student which use approach of Brain-basedLearning is better than the mathematical connection ability of students using DirectIntruction learning. There is an increase of students' mathematical connection abilitywith Brain-Based Learning approach that is in medium category and student'sresponse to learning using Brain Based Learning approach shows positive response.
Upaya meningkatkan kemampuan koneksi melalui pendekatan contextual pada mata pelajaran matematika Cicih Kurniasih; Evan Farhan Wahyu Puadi; Uba Umbara
JUMLAHKU: Jurnal Matematika Ilmiah STKIP Muhammadiyah Kuningan Vol 4 No 1 (2018): Edisi Vol. 4 No. 1 Mei
Publisher : Program Studi Pendidikan Matematika STKIP Muhammadiyah Kuningan

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Abstract

Tujuan penelitian ini adalah untuk menguji efektifitas pembelajaran matematika dengan menggunakan pendekatan constextual melalui penelitian tindakan kelas (PTK). PTK ini menyajikan temuan dari penelitian mengenai upaya meningkatkan kemampuan koneksi melalui pendekatan Contextual pada mata pelajaran matematika. Penelitian ini melibatkan kelas tujuh A di SMP Negeri 1 Maleber pada semester genap tahun ajaran 2016-2017. Penelitian menggunakan instrumen tes uraian untuk mengevaluasi kemampuan koneksi matematika siswa serta menggunakan angket respon siswa untuk mengetahui respon siswa terhadap pembelajaran yang diterapkan. Untuk mengetahui kemampuan koneksi matematika siswa, peneliti menggunakan Hasil Belajar Siswa (HBS) yang didasarkan pada Kriteria Ketuntasan Minimum (KKM), dimana KKM yang dipakai adalah 74 . Hasil kemampuan koneksi klasikal siswa perlakuan awal berada pada kategori sangat kurang yaitu sekitar 36.36% dan hasil akhir siklus kedua dan ketiga secara berturutturut adalah 72.72% dan 87.87% yaitu akhir siklus dua berada pada kategori cukup dan akhir siklus tiga pada kategori sangat baik, ini menunjukan adanya peningkatan secara signifikan. Begitupun kemampuan koneksi matematika per indikator mengalami peningkatan. Selain itu dari hasil angket respon siswa, diketahui pada awal siklus pertama respon belajar klasikal siswa hanya mencapai 2.48 yaitu berada pada kategori cukup sedangkan akhir siklus ketiga respon klasikal siswa mencapai 3.43 yaitu berada pada kategori sangat baik. Dari data tersebut bisa disimpulkan bahwa siswa merespon dengan baik terhadap penerapan pembelajaran dengan pendekatan contextual.
IMPLIKASI TEORI BELAJAR KONSTRUKTIVISME DALAM PEMBELAJARAN MATEMATIKA Uba Umbara
JUMLAHKU: Jurnal Matematika Ilmiah STKIP Muhammadiyah Kuningan Vol 3 No 1 (2017): Edisi Vol. 3 No. 1 Mei
Publisher : Program Studi Pendidikan Matematika STKIP Muhammadiyah Kuningan

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Abstract

Implikasi memiliki tujuan untuk membandingkan hasil penelitian antara yang telah lalu dengan yang baru saja dilakukan. Pada dasarnya implikasi suatu teori dapat didefinisikan sebagai akibat langsung atau konsekuensi atas temuan hasil suatu proses penelitian. Sehingga, munculah berbagai teori hasil penelitian. Teori pembelajaran konstruktivisme ini memberikan pengaruh yang kuat dalam dunia pendidikan. Akibatnya, oreintasi pembelajaran di kelas mengalami pergeseran. Orentasi pembelajaran bergeser dari berpusat pada guru mengajar ke pembelajaran berpusat pada siswa.Siswa tidak lagi diposisikan bagaikan bejana kosong yang siap diisi. Dengan sikap pasrah siswa disiapkan untuk dijejali informasi oleh gurunya. Atau siswa dikondisikan sedemikian rupa untuk menerima pengatahuan dari gurunya. Siswa kini diposisikan sebagai mitra belajar guru. Guru bukan satu-satunya pusat informasi dan yang paling tahu. Guru hanya salah satu sumber belajar atau sumber informasi. Sedangkan sumber belajar yang lain bisa teman sebaya, perpustakaan, alam, laboratorium, televisi, koran dan internet
Ethnomathematics study: The use of modulo concept in Kampung Naga Umbara, Uba; Prabawanto, Sufyani; Anwar, Agus Saeful
Jurnal Infinity Vol 14 No 2 (2025): VOLUME 14, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v14i2.p513-530

Abstract

This article discusses the ethnomathematics study of the Kampung Naga community in Tasikmalaya, Indonesia. Ethnomathematics can investigate the application of mathematical notions in these cultural activities. The study explored the forms of ethnomathematics in their ideas and activities in living their daily lives. This study uses an ethnomethodological approach with a realistic ethnographic design to show facts and provide broader meaning. Data were collected from five respondents through in-depth interviews. The study results show that the Kampung Naga community uses the modulo concept to determine the criteria for days that can be used to start various activities, such as building or repairing houses, working, farming, and other social activities. This exploration proves that mathematical concepts are integrated into cultural values ​​in everyday life.
Didactical design research on mathematical sequence material in vocational high schools for job preparation Tio Heriyana; Uba Umbara; Evan Farhan Wahyu Puadi
Jurnal Elemen Vol 11 No 2 (2025): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i2.27753

Abstract

The material of sequences and series has many benefits in daily life, so mastery of sequences and series is essential, especially for job selection. This study is based on Didactical Design Research (DDR), which focuses on five twelfth-grade vocational high school students as research subjects. This study uses a methodological framework, which includes three analysis stages: prospective, metapedagogical, and retrospective. The results of this study reveal that: (1) learning obstacles experienced by students are divided into three types, namely ontogenical obstacles, epistemological obstacles, and didactical obstacles; (2) the didactic design developed by the researcher includes hypothetical didactic design 1 (which includes material, examples, and practice questions regarding number arithmetic operations and number patterns), hypothetical didactic design 2 (which includes material, examples, and practice questions regarding arithmetic series and geometric series), and hypothetical didactic design 3 (which contains material, examples, and practice questions regarding types of number series in psychological test questions); (3) Learning obstacles can be overcome by utilizing didactic design; and (4) The empirical didactic design is a synthesis of the material and analysis obtained from hypothetical didactic designs 1, 2, and 3 which have been implemented effectively.
Implementation of the two stay two stray learning model with a realistic mathematics education approach to mathematical understanding ability Yanti, Rohmah; Umbara, Uba; Sunzuma, Gladys
Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika Vol. 15 No. 1 (2025): Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika
Publisher : Program Magister Pendidikan Matematika, Pascasarjana, Universitas Pasundan in collaboration with Asosiasi Guru Matematika Indonesia (AGMI) and Indonesian Mathematics Educators' Society (IMES)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/pjme.v15i1.16865

Abstract

This study aims to determine the effectiveness of the Two Stay Two Stray (TS-TS) learning model combined with the Realistic Mathematics Education (RME) approach in improving students’ mathematical understanding. The research was conducted at SMPN 1 Sindangagung with eighth-grade students as subjects during the 2023/2024 academic year. Class VIII C was assigned as the experimental group and Class VIII D as the control group was selected using purposive sampling. This study used a quasi-experimental design with a non-equivalent pretest-posttest control group format. The instruments used included an essay test to measure mathematical understanding and teacher interview guidelines during the pre-research phase. Data analysis was carried out using normality and homogeneity tests, N-Gain calculations, and the Mann-Whitney U test. The results indicate a statistically significant difference in improvement between the two classes. Practically, the implementation of the TS-TS model based on RME increased student engagement and conceptual understanding, making it a viable alternative for designing active, collaborative, and meaningful mathematics learning.
Co-Authors Abdul Rosyid Abdul Rosyid Aini, Fina Izzatul Amelia, Rosa Anwar, Agus Saeful Awang Nurjanah Ayu Siti Nurhamidah Cicih Kurniasih Dani Hidayat Deden Safrudin Dena Latif Setiawan Desi Trisusanti Didi Suryadi Eva Novita Aprilian Evan Farhan Wahyu Puadi Febriana, Dea Sekar Ayu Fitriyani, Dea Galuh Oktagina Indri Astuti Inri Rahmawati Inri Rahmawati Irma Khamisah Jaja Rusja Jojo Johari Lusy Ayu Lestari M. Irfan Habibi Moch. Nurkholis Mohamad Gilar Jatisunda Muhammad Irfan Habibi Nia Kurniawati Ninik Setiasih Nur Azizah Nur’rochim, Hendri Puadi, Evan Farhan Wahyu Putri, Putri Eka Pratiwi Rahmawati, Inri Riadi, Taufik Ricky Yuliardi Rika Rostika Rika Rostikaningsih Rini Apriyanti Rohimatunnisa, Dela Siska Nurfadilah Sri Kusumah Sufyani Prabawanto, Sufyani Sukenda . Sunzuma, Gladys Tio Heriyana Ulli Fauziyah Vina Rima Melati Wahyudin Wahyudin Wahyudin Wahyudin Yanti, Rohmah Yudi Yudianto Yuli Sahara Zuli Nuraeni