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Ethnomathematics: Predicting the Average Height of the Bali Mula Ancestors using Linear Regression Jero Budi Darmayasa; Wahyudin W; Tatang Mulyana
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol 8, No 1 (2019): September
Publisher : Universitas PGRI Madiun

This research is a study of Ethnomathematics. In this case, we view Ethnomathematics as an intersection between mathematics, mathematical modelling, and cultural anthropology. The purpose of this study is to determine the average height of Bali Mula ancestors communities in the area of Ancient Caldera Batur. We use exploration, observation, experimentation, documentation, and interviews method. In the initial stage of the study, we determine the relationship between the finger length index and the height body of Bali Mula male. The linear regression equation expresses the relationship, which is a length of the index finger as a predictor variable. Moreover, measure the pillars width of some houses Saka Roras and substituting it, we have the regression equation. Consequently, we estimate the average height of the Bali Mula ancestors in Kintamani area are 165 cm. Since it contains linier regression concepts, prediction the average height of Bali Mula ancestors from their traditional homes may be used as the context in mathematical (statistical) learning at school or university.

Pengembangan Microcontent Untuk Pembelajaran Matematika Pada Muhammadiyah Boarding School Daarul Ilmi Tarakan Jero Budi Darmayasa; Irianto Aras; Aswar Amiruddin; Ramli Ramli; Bayu Kurniawan
MATAPPA: Jurnal Pengabdian Kepada Masyarakat Volume 5 Nomor 2 Tahun 2022
Publisher : STKIP Andi Matappa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31100/matappa.v5i2.1782

Program Kemitraan Masyarakat (PKM) ini dilaksanakan bersama mitra dari Sekolah Menengah Atas (SMA). Mitra pada PKM ini adalah Bayu Kurniawan, S.Pd, wali kelas Xb SMA MBS Daarul Ilmi Tarakan. Permasalahan yang memungkinkan untuk dicarikan solusinya terkait situasi dan kondisi pembelajaran matematika di kelas Xb diantaranya: 1) video pembelajaran yang kurang variatif dan masih monoton pada satu bentuk yaitu screen dan audio, 2) penilaian pembelajaran yang masih terbatas pada soal Pilihan Ganda dan Essay (belum menyentuh project dan penilaian kinerja), 3) waktu guru terlalu banyak habis dalam penyusunan video pembelajaran, 4) kedekatan (komunikasi) belum terbangun dengan baik antara mitra dengan siswa kelas Xb. Memperhatikan hal tersebut, salah satu solusi yang rencana digunakan adalah membuat Microcontent yang variatif, dikemas dalam video pembelajaran yang berkualitas dalam bentuk video. Adapun microcontent disematkan dalam google classroom atau Edpuzzle sehingga bisa memanfaatkan fitur penilaian test dan non-test (rubric penskoran) dengan mudah dan efektif. Setelah dilaksanakan kegiatan, terdapat beberapa manfaat yang diperoleh baik oleh mitra ataupun tim pelaksana, diantaranya: a) Peningkatan kemampuan mitra dalam merancang content pembelajran, b) Peningkatan kualitas media pembelajraan berupa video, c) terjalin komunikasi dan kerjasama yang bagus antara pendidik di SMA MBS Daarul Ilmi dengan tim Universitas Borneo Tarakan, d) tersebarluasnya konsep Microcontent dalam pembelajaran daring di Kaltara dan sekitarnya.

Pembelajaran Operasi Penjumlahan dan Pengurangan Bilangan Bulat Menggunakan Garis Bilangan Irianto Aras; Hermansyah Hermansyah; Jero Budi Darmayasa
Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol 9, No 1 (2021): Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam had Accredi
Publisher : Prodi Pendidikan Matematika FTIK IAIN Palopo

Abstract:This study aims at determining the role of the number line media in helping students understand and obtain local instructional theory in learning integer operations in the 4th Grade of Madrasah Ibtidaiyah in Tarakan. This research is design with three stages, namely preliminary design, experimental design, and retrospective analysis. In the preliminary design stage, a number line media along with the hypothetical learning trajectory is made. Then the teaching experiment is conducted to compare the expected learning trajectory with the actual learning trajectory that takes place. In the final stage, a retrospective analysis is carried out by viewing the video recording of learning and evaluation results. From the analysis, it was found that the use of number lines can help students to understand the operations of addition and subtraction of integers. This study also developed local instructional theory related to learning integers using number lines.Abstrak:Penelitian ini bertujuan untuk mengetahui peranan media garis bilangan dalam membantu pemahaman siswa serta mengembangkan teori instruksional lokal (local intructional theory) pada pembelajaran operasi bilangan bulat di kelas IV di salah satu Madrasah Ibtidaiyah di Kota Tarakan. Desain penelitian ini terdiri dari tiga tahap, yaitu desain pendahuluan, desain percobaan, dan analisis retrospektif. Pada tahap desain pendahuluan dilakukan pembuatan media garis bilangan beserta dugaan lintasan belajar, kemudian dilakukan percobaan pengajaran untuk membandingkan lintasan belajar yang diharapkan dengan lintasan belajar yang sesungguhnya terjadi. Pada tahap akhir dilakukan analisis retrospektif dengan melihat rekaman video pembelajaran dan hasil evaluasi. Dari analisis tersebut ditemui bahwa penggunaan garis bilangan dapat membantu siswa untuk memahami operasi penjumlahan dan pengurangan bilangan bulat. Penelitian ini juga mengembangkan teori instruksional lokal terkait pembelajaran bilangan bulat menggunakan garis bilangan.

ETHNOMATHEMATICS UKIRAN DAYAK KENYAH Jero Budi Darmayasa; Irianto Aras; Dedy Arifaini Tharmidji; Irnovita Netiana
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 11, No 3 (2022)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Penelitian ini bertujuan untuk mengeksplorasi konsep matematika yang terdapat pada Ukiran masyarakat Dayak Kenyah di Kalimantan Utara. Jenis penelitian yang dipilih adalah studi kasus dengan unit analisis masyarakat Dayak Kenyah yang melakukan aktivitas di wilayah Kabupaten Bulungan. Adapun informan kunci dalam penelitian ini adalah tokoh adat, tokoh masyarakat, bidang kebudayaan, serta tukang ukir, dan warga masyarakat yang memahami tentang seluk beluk ukiran Dayak kenyah. Wawancara, observasi, dan analisis dokumentasi digunakan untuk mengumpulkan data. Data yang terkumpul kemudian dianalisis menggunakan teknik pengumpulan data, penyajian data, data reduksi, dan pengambilan kesimpulan. Adapun temuan dari penelitian ini yaitu adanya konsep pencerminan pada ukiran Gapura Desa Tradisional, pada tameng (perisai), serta pintu rumah salah satu warga Desa Teras Nawang; Konsep titik (titik pangkal) pada ukiran dinding Balai Adat, Konsep pergeseran (translasi) pada ukiran bagian luar rumah adat, Konsep As (simetri) serta pemanfaatan konsep koordinat cartesius dalam aktivitas mengukir oleh seniman Dayak Kenyah.

Why is the mathematics educator called inspiring? Rustam Effendy Simamora; Jero Budi Darmayasa; Jean Gloria Kamara
Journal of Honai Math Vol 5, No 2 (2022): Journal of Honai Math
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jhm.v5i2.334

Inspiration plays a significant role in sparking or enhancing the learning motivation of prospective mathematics teachers (PMTs). Inspiration will also influence the mathematical identity of PMTs’ when they become professional mathematics teachers. A mathematics teacher educator (MTE) can be a source of inspiration for PMTs; hence, a study must identify and explain why an MTE is considered inspiring. This study attempts to develop the theory of inspiring MTEs profiles based on the experience of PMTs. This study included 21 students and 7 lecturers of the Mathematics Education Department in a public university in Indonesia. This qualitative research was conducted employing a grounded theory constructivist approach. The findings revealed that inspiring MTEs possessed the following characteristics: “creating a sense of comfort, being knowledgeable, being motivating, providing fun and enjoyable learning, imparting new insights and comprehension, and being disciplined and authoritative.” According to this theory, an inspiring MTE creates a sense of comfort through their gracious, friendly, humble, and humorous personality. Fun and enjoyable learning in this study is learning that provide a sense of comfort, fun learning, interactive learning, and carrying out evaluations. MTEs give new insight and understanding by explaining in detail, systematically, and easily understood, sharing creative ideas, and providing scaffolding. Implications of this finding are discussed.

Application of the concept of reflection in majejahitan activity by Bali Mulia society Jero Budi Darmayasa; Wahyudin Wahyudin; Tatang Mulyana
Ethnomathematics Journal Vol 1, No 1 (2020): March
Publisher : Universitas negeri Yogyakarta

This research is qualitative research with case study method. The focus of this research is to explore the value of ethnomathematics in the culture of the Bali Mula society in the Kintamani sub-district, Bali Province. The research starts from the exploration phase of ethnomathematics, mapping ethnomathematics with school mathematics, explores aspects of pedagogy in the preservation of ethnomathematics and concludes on how ethnomathematics is applied to mathematics learning in schools. Data collection was carried out through observation of Mejejahitan activities carried out by Bali Mula women. Data from observations are then linked to the results of documentation analysis and strengthened by the results of interviews. The triangulation method is carried out to check the validity of the research data. Based on the results of data analysis there is a relationship between the activities of Mejejahitan with school mathematics. The mathematical concepts contained in the Majejahitan activity that is reflecting (reflecting) and predicting or predicting patterns. Because there is a relationship between Majejahitan activities with school mathematics, it can be said that there are ethnomathematics values in the culture of the Bali Mula society in Kintamani District, Bali Province.

MATEMATIKA DALAM KURIKULUM SMK PASCA PANDEMI COVID-19 Jero Budi Darmayasa; Shinta Wulandari; Lina Ervana
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 6, No 3 (2023): Mei
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i3.17112

This study aims to find a substantive theory about learning a new paradigm for mathematics in the Vocational High School (SMK) curriculum in Bulungan District, North Kalimantan Province. To achieve this goal, the researcher chose a qualitative research method with a case study approach. The unit of analysis for this study is the school community (curriculum vice chief, mathematics teacher, and vocational students) who are carrying out the teaching and learning process at vocational schools. To obtain the necessary data, interviews, observations, and documentation analysis were carried out. The data obtained were then analyzed using the pattern matchmaking technique as recommended by Robert K. Yin. The findings of this study are that mathematics has a strategic position in the SMK curriculum. This strategic position is that there is a change in the position of mathematics from national content to the 2013 curriculum to vocational basics in the independent curriculum. In addition, learning mathematics in vocational schools still needs to be varied to achieve competencies that are expected to help students use facts, principles, concepts, and procedures that are relevant to their vocational skills.

MATEMATIKA DALAM KURIKULUM SMK PASCA PANDEMI COVID-19 Jero Budi Darmayasa; Shinta Wulandari; Lina Ervana
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 6, No 3 (2023): Mei
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i3.17112

This study aims to find a substantive theory about learning a new paradigm for mathematics in the Vocational High School (SMK) curriculum in Bulungan District, North Kalimantan Province. To achieve this goal, the researcher chose a qualitative research method with a case study approach. The unit of analysis for this study is the school community (curriculum vice chief, mathematics teacher, and vocational students) who are carrying out the teaching and learning process at vocational schools. To obtain the necessary data, interviews, observations, and documentation analysis were carried out. The data obtained were then analyzed using the pattern matchmaking technique as recommended by Robert K. Yin. The findings of this study are that mathematics has a strategic position in the SMK curriculum. This strategic position is that there is a change in the position of mathematics from national content to the 2013 curriculum to vocational basics in the independent curriculum. In addition, learning mathematics in vocational schools still needs to be varied to achieve competencies that are expected to help students use facts, principles, concepts, and procedures that are relevant to their vocational skills.

MATEMATIKA DALAM KURIKULUM SMK PASCA PANDEMI COVID-19 Jero Budi Darmayasa; Shinta Wulandari; Lina Ervana
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 3 (2023): Mei
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i3.17112

This study aims to find a substantive theory about learning a new paradigm for mathematics in the Vocational High School (SMK) curriculum in Bulungan District, North Kalimantan Province. To achieve this goal, the researcher chose a qualitative research method with a case study approach. The unit of analysis for this study is the school community (curriculum vice chief, mathematics teacher, and vocational students) who are carrying out the teaching and learning process at vocational schools. To obtain the necessary data, interviews, observations, and documentation analysis were carried out. The data obtained were then analyzed using the pattern matchmaking technique as recommended by Robert K. Yin. The findings of this study are that mathematics has a strategic position in the SMK curriculum. This strategic position is that there is a change in the position of mathematics from national content to the 2013 curriculum to vocational basics in the independent curriculum. In addition, learning mathematics in vocational schools still needs to be varied to achieve competencies that are expected to help students use facts, principles, concepts, and procedures that are relevant to their vocational skills.

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