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All Journal Jurnal Karya Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Eduma : Mathematics Education Learning and Teaching AL ISHLAH Jurnal Pendidikan Language Literacy: Journal of Linguistics, Literature, and Language Teaching Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Tarbawi : Jurnal Ilmu Pendidikan Martabe : Jurnal Pengabdian Kepada Masyarakat Teorema: Teori dan Riset Matematika JURNAL NUSANTARA APLIKASI MANAJEMEN BISNIS Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Jurnal Onoma: Pendidikan, Bahasa, dan Sastra Jurnal Ilmiah Pendidikan Matematika Al Qalasadi Square : Journal of Mathematics and Mathematics Education Community Empowerment Journal of Mathematics Education and Science International Journal of Business, Law, and Education EMTEKA: Jurnal Pendidikan Matematika International Journal of English and Applied Linguistics (IJEAL) ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat As-Sidanah : Jurnal Pengabdian Masyarakat Sulawesi Tenggara Educational Journal Jurnal Pengabdian Masyarakat Tjut Nyak Dhien Arus Jurnal Psikologi dan Pendidikan JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR) Al Basirah SEUNEUBOK LADA: Jurnal ilmu-ilmu Sejarah, Sosial, Budaya dan Kependidikan Jurnal Masyarakat Madani Indonesia Geographica: Science and Education Journal Jurnal Sains Natural JME (Journal of Mathematics Education) Journal of Mathematics and Applied Statistics VISA: Journal of Vision and Ideas JME (Journal of Mathematics Education)

Chairuddin Chairuddin

Universitas Sembilanbelas November Kolaka

Author-ID : 2492858

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Neuroscience Nursing Physics Public Health Social Sciences Other

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Pengembangan Lembar Kerja Peserta Didik Berbasis Pendekatan Metaphorical Thinking Terhadap Kemampuan Pemecahan Masalah Matematis Baharudin, Baharudin; Chairuddin, Chairuddin; Tahir, Tahir
JSN : Jurnal Sains Natural Vol. 2 No. 2 (2024): Mei
Publisher : Puslitbang Sekawan Institute Nusa Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35746/jsn.v2i2.432

This research aims to develop and produce mathematics LKPD (Learner Worksheets) based on the Metaphorical Thinking Approach that meet the criteria of valid, practical and effective in linear program material. This type of research is development research (Research and Development) with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The subjects of this research were class XI students at SMA IT Wihdatul Ummah Kolaka, media experts and learning material experts who came from lecturers, mathematics subject teachers. The object of this research is LKPD based on the Metaphorical Thinking approach to linear program material. Data collection instruments include questionnaires and tests. The data obtained was then analyzed using qualitative data analysis techniques and quantitative data analysis techniques. The research results showed that based on the validity test, the LKPD based on the Metaphorical Thinking approach was declared very valid with a percentage level of 89.44%. The results of the small group practicality test using a response questionnaire with a total of 6 students as respondents showed that the LKPD based on the Metaphorical Thinking approach was very practical with a percentage level of 90.42% and the results of the limited group test showed that the LKPD based on the Metaphorical Thinking approach was very practical with a percentage level of 91. 53%. From the calculation results, it appears that 83.33% of students who completed KKM 73 achieved the KKM completion requirements. Based on the overall development process, it can be concluded that the LKPD based on the Metaphorical Thinking approach to linear program material is effective.

PEMBUATAN KITOSAN PERAK SEBAGAI ADSORBEN UNTUK MENURUNKAN KADAR LOGAM BESI (Fe) DAN ZINK (Zn) PADA AIR SUNGAI DESA KOPAS KECAMATAN SIMPANG EMPAT KABUPATEN ASAHAN Agusnar, Harry; Chairuddin; Hannani, Nabilah
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 2 (2018): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Penelitian pembuatan kitosan yang dimodifikasi dengan larutan AgNO3 menjadi kitosan perak sebagai adsorben untuk menurunkan kadar logam besi (Fe) dan zink (Zn) pada air sungai desa Kopas kecamatan simpang empat kabupaten asahan telah dilakukan. Pada penelitian ini, didahului dengan pembuatan kitosan perak dengan melarutkan kitosan komersial dan asam asetat 1% serta dicampurkan dengan larutan AgNO3 0,5 M dengan rasio 2:1 lalu diteteskan kedalam larutan NaOH 2 M yang kemudian membentuk gel (bead) berwarna hitam. Kitosan perak yang telah dikeringkan dimasukkan ke dalam kolom, lalu ditambahkan dengan 50 mL sampel yang telah didestruksi dan sudah diketahui kadar logam Fe dan Zn sebesar 1,5175 mg/L dan 0,7218 mg/L. Didiamkan berdasarkan variasi waktu kontak selama 30, 45, dan 60 menit. Penentuan penurunan kadar logam yang telah di adsorbsi oleh kitosan perak dilakukan dengan menggunakan Spektrofotometri Serapan Atom (SSA). Hasil penelitian menunjukkan bahwa pada proses adsorpsi diperoleh persentase penyerapan logam Fe 82,154% dan logam Zn 84,871 % pada waktu kontak optimum penyerapan yaitu 45 menit.

EXPLORATION OF MATHEMATICAL CONCEPTS IN THE LOCAL WISDOM OF THE MEKONGGA PEOPLE Hidayati, Ully; Chairuddin, Chairuddin; Marillah, Dima
JME (Journal of Mathematics Education) Vol 10, No 2 (2025): JME (Jul - Dec)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v10i2.2520

This study explores the mathematical concepts embedded in the cultural practices and local wisdom of the Mekongga people in Kolaka and East Kolaka Regencies, Southeast Sulawesi, Indonesia. Guided by an ethnomathematical perspective, the research aims to identify and describe how mathematical reasoning manifests through traditional architecture, art, rituals, and social systems. A qualitative approach with an ethnographic design was employed, involving purposive interviews with cultural informants such as the Deputy King of Mekongga, traditional artists, and Tolea (customary leaders). Data were collected through observation, interviews, documentation, and literature review, then analyzed using the Miles and Huberman interactive model consisting of data reduction, display, and conclusion drawing. The findings reveal that Mekongga culture embodies diverse mathematical ideas: set theory in cultural classification and royal genealogies; geometry and proportion in traditional houses; transformational geometry in woven fabrics and decorative motifs; plane geometry and ratio in the kalo sara symbol; social arithmetic in mahar (dowry) traditions; and alternative numeral systems in historical records. These results confirm that mathematical thought is inherently present within local wisdom and daily life. Theoretically, this study strengthens D’Ambrosio’s framework of ethnomathematics by demonstrating how indigenous practices represent mathematical reasoning. Pedagogically, it highlights the potential of Mekongga cultural elements as contextual and meaningful learning resources, bridging abstract mathematical concepts with cultural understanding in mathematics education.

The Impact of Script Type Cooperative Learning Model Implementation on Mathematics Learning Outcomes in Class VIII Junior High School Students Chairuddin, Chairuddin
JME (Journal of Mathematics Education) Vol 6, No 1 (2021): JME
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v6i1.1600

This is an experimental study to determine (1) the mathematics learning outcomes of class VIII students at SMP Negeri 16 Poleang Tengah after being taught using a script-type cooperative learning model on cube and block material; (2) the mathematics learning outcomes of class VIII students at SMP Negeri 16 Poleang Tengah after being taught using conventional learning models on cubes and blocks; and (3) the mathematics learning outcomes of students who are taught using a script-type cooperative learning model on cube and block material. The hypothesis of this study is that using the Script Type cooperative learning model to teach students mathematics is more effective than using traditional learning models on cube and block material in class VIII SMP Negeri 16 Poleang Tengah. The participants in this study were all students in class VIII, who were divided into three parallel classes with a total of 60 pupils. The Cluster Random Sampling approach was used to sample the two classes, one of which was designated as the control class and the other as the experimental class. A total of 40 people were included in the study from both classes. Data is retrieved through learning outcomes assessments, which are then utilized to collect information on students' math learning results. Descriptive and inferential statistics were employed in the data analysis technique. Inferential research using the t-test yielded a value of tcount = 2.293 in sig. = 0.027 = 0.05, indicating that H0 is rejected and H1 is accepted. This inferentially means that there is a significant difference in the mathematics learning outcomes of students in Class VIII SMP Negeri 16 Poleang Tengah who are taught the Script-type cooperative learning model versus the conventional learning model. Based on the findings of these research, it can be stated that using the script type cooperative learning model to teach students mathematics is more effective than using traditional learning models for class VIII students at SMP Negeri 16 Poleang Tengah.

Interest in Gamification Learning Based on Student Learning Styles Farman, Farman; Chairuddin, Chairuddin; Marniati, Marniati
JME (Journal of Mathematics Education) Vol 6, No 2 (2021): JME
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v6i2.1586

This study aims to analyze student interest in gamification-assisted learning in terms of student learning styles. This research is a type of descriptive research using a qualitative approach. The subjects are students of the Mathematics Education Study Program, Faculty of Teacher Training and Education, USN Kolaka, a research course program with 20 students. The data collection technique used in this research is to use a questionnaire. The instrument used in this study was a questionnaire of learning styles and interest in learning in gamification-assisted learning. According to Miles and Huberman, the data analysis technique used in this study is a qualitative data analysis technique, namely data reduction, data presentation, and conclusion drawing. The results showed (1) the average student interest in gamification-assisted learning with word walls was in the high category, (2) student learning styles in research subjects mostly tended to be multimodal (60%), and (3) students with unimodal learning styles have high interest, bimodal, and trimodal learning styles have a very high interest in learning with gamification-assisted learning.

Mathematical Problem Solving Ability in Cooperative Learning Type Student Teams Achievement Division (STAD) Chairuddin, Chairuddin; Farman, Farman
JME (Journal of Mathematics Education) Vol 6, No 2 (2021): JME
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v6i2.1669

This study aims to describe the mathematical problem solving ability of class IX students of SMP Negeri 1 Kolaka. The type of research used in this research is descriptive with a qualitative approach. The subjects of this study consisted of 25 students of class IXD SMP Negeri 1 Kolaka. The instruments in this study were a test of problem-solving skills and an observation sheet. The test questions for the ability to solve mathematical problems are in the form of a description test consisting of 5 questions. The observation sheet consists of teacher and student observation sheets which are arranged based on the application of STAD type cooperative learning. The data analysis technique in this study uses the Miles Huberman model which consists of data reduction, data presentation and conclusion drawing. The results showed that (1) the average mathematical problem solving ability of students taught by the STAD type cooperative learning model consisting of 25 students showed a mean value of 70, variance 82.82, and standard deviation 9.10. The average indicates that the problem-solving ability is in the good category. (2) The average percentage of teacher activity is 79.56% who are in the active category, while the average percentage of student activity is 76.67% who are in the active category. Thus, it can be concluded that STAD learning activities can facilitate the achievement of students' problem solving abilities

Penerapan Metode Design Thinking dalam Perancangan UI/UX pada Aplikasi Pintebs Kursus Online Bisnis dan Teknologi Syukur, Moh Rezky; Muhammad, Dian; Chairuddin, Chairuddin; Herwanto, Patah
VISA: Journal of Vision and Ideas Vol. 4 No. 3 (2024): VISA: Journal of Vision and Ideas
Publisher : IAI Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/visa.v4i3.4209

This article discusses the importance of designing user interface (UI) and user experience (UX) in mobile-based online course applications. In the introduction, the role of technology in learning, particularly online courses that enable remote learning interaction, is outlined. The literature review covers the concepts of UI, UX, and design thinking as a user-centered design methodology. The design thinking method is employed in the UI design of the online course application, encompassing the stages of empathy, problem definition, ideation, prototyping, and testing. The discussion results indicate that this approach is effective in generating UI/UX designs that align with user needs. Well-designed UI/UX facilitates user interaction and enhances their learning experience within the online course application. The conclusion of this article emphasizes the importance of user-centered UI/UX design in the development of online course applications to maximize the user's learning experience. The design thinking method has proven to be an effective approach in producing innovative designs that cater to user requirements.

DARI TRADISI KE TEKNOLOGI: PELATIHAN SISTEM INFORMASI GAMPONG (SIGAP) MENGUBAH DINAMIKA ADMINISTRATIF DI GAMPONG ACEH Kurniawan, Agus; Fairus, Fairus; Mastuti, Rini; Fuad, Muhammad; Purnama Sari, Riezky; Chairuddin, Chairuddin
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 3 (2024): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i3.955-961

Penggunaan teknologi informasi dalam administrasi desa atau gampong memiliki potensi besar untuk meningkatkan efisiensi, transparansi, dan partisipasi masyarakat. Jurnal Pengabdian Masyarakat ini mendokumentasikan pelatihan penggunaan Aplikasi Sistem Informasi Gampong (SIGAP) di Provinsi Aceh dengan tujuan memperkenalkan dan meningkatkan keterampilan penggunaan teknologi informasi di tingkat lokal. Pelatihan ini melibatkan pemerintah gampong, petugas administrasi, dan mahasiswa sebagai peserta. Metodologi pelatihan mencakup sesi teori, demonstrasi, dan praktik langsung menggunakan SIGAP. Evaluasi dilakukan untuk mengukur efektivitas pelatihan dan dampaknya pada peningkatan kemampuan administratif di gampong. Hasil penelitian menunjukkan peningkatan signifikan dalam pemahaman dan penerapan SIGAP di antara peserta. Selain itu, aplikasi ini berhasil mempercepat proses administratif, meningkatkan akurasi data, dan memfasilitasi komunikasi antara pemerintah gampong dan masyarakat. Pelatihan SIGAP di Provinsi Aceh mendorong partisipasi aktif dalam pemanfaatan teknologi informasi di tingkat lokal, mendukung upaya pemberdayaan masyarakat, dan memberikan kontribusi positif terhadap pengembangan administrasi gampong yang modern dan efisien.

MAGANG MAHASISWA DI DINAS PEMBERDAYAAN MASYARAKAT DESA PROVINSI ACEH PADA PROGRAM MATCHING FUND Chairuddin, Chairuddin; Fuad, Muhammad; Fairus, Fairus; Sinaga, Sorbakti; Mastuti, Rini
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 12 (2023): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i12.4224-4233

Program magang yang dilakukan bagi mahasiswa merupakan sebuah kesempatan untuk mengikuti periode kerja sementara. Melalui kegiatan magang mahasiswa dapat memperoleh pengalaman kerja awal yang berharga, yang dapat membantu memahami tantangan, tren, dan peluang di dunia kerja. Matching Fund menyediakan peluang magang bagi mahasiswa di Dinas Pemberdayaan Masyarakat Desa (DPMD) Provinsi Aceh sebagai bagian dari upaya untuk meningkatkan soft skill mahasiswa dalam mengatasi permasalahan di desa atau masyarakat. Kegiatan magang diikuti oleh 5 orang mahasiswa yang berasal dari program studi yang berbeda. Metode yang digunakan dalam kegiatan magang adalah pendekatan partisipatif dimana mahasiswa terlibat secara menyeluruh pada hampir semua kegiatan DPMD pada sektor yang disesuaikan dengan latar belakang keilmuan masing-masing mahasiswa. Dosen berperan sebagai pembimbing yang memberikan arahan dan bimbingan kepada mahasiswa selama proses magang. Hasil menunjukkan bahwa, kegiatan magang dapat meningkatkan soft skill mahasiswa rata-rata mencapai 90% terkait pengelolaan desa. Melalui kegiatan ini, diketahui bahwa pentingnya

Study on Utilization of Active Natural Zeolite as Ammonia Absorbent in Aquarium as a Medium Fresh Fish Cultivation Chairuddin; Marbun, Roberta; Gulton, Jamahir
Journal of Chemical Natural Resources Vol. 4 No. 1 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

A study of the use of natural zeolite active as ammonia absorbent in an aquarium as the cultivation of medium fresh fish has been conducted. The water sample was taken from the surface water of Toba Lake, Pangururan, Samosir Regency. Natural zeolite was refined until measured at 200 mesh and activated by physics. Determination of ammonia was performed using spectrophotometrically with the Nessler method at the maximum wavelength of 410 nm. The result of the analysis of this study obtained that decrease in water pH and ammonia content in the water after feeding the fish was caused by the absorption of active natural zeolite active to the tenth day which concentration of ammonia on the first and tenth day was 1.2723 mg/L and 2.4171 mg/L with the largest absorption percent on the day to ten was 38.04%.

Co-Authors Adryan Rachman Agus Kurniawan Akob, Bachtiar Al Tasa, Fiza Rauzika ANDIKA SAPUTRA Anwar Matondang, Saiful Arafah, Burhanuddin Arhita, Siska Ayu Asriani Baharudin Baharudin Bangun, Ahmad Darwin Bania, Allif Syahputra Cut Nuraini Dian Ulfa Sari Erfina, Erfina Fairus, Fairus Faridy, Najihatul Farman, Farman Febrian , Fadri Fitriyani Hali Fitriyani Hali Fitriyani Hali Fitriyani Hali, Fitriyani Gulton, Jamahir Guntur Arie Wibowo, Guntur Arie Halidin S.Pd., M.PMat Halidin, Halidin Hannani, Nabilah Harry Agusnar Hasrina, Noliza Herlina Herlina Herwanto, Patah Hidayati, Ully Husnaini, Nadia Indra Purnomo Irma Dewi Isda Isra Djabbar Jahring Jahring, Jahring Jahring, Jahring Jumino Suhadi, Jumino Karunia, Karunia La Ode Sirad Manugeren, M Marbun, Roberta Maria Ulfa Marillah, Dima Marniati Marniati Marniati Marniati, Marniati Meilisa Alvita Muhammad Fuad Muhammad, Dian Munawir Munawir Nasarudin Nasarudin Nasruddin Nasruddin Nasruddin Nasruddin Nisa Miftachurohmah Nuraini Nuraini Nurliza Lubis Ovan, Ovan Perangin Angin, Elsa Sucita PURBA, NORA MARIHOT Purnama Sari, Riezky Rahmah Fithriani Rahmi, Ummi Rahmiati Rahmiati Rahmiati Ramadhan, Nur Ihsan Ridhonul Rahman Rinda Rini Mastuti Salido, Achmad Samudra , Andika Sanjani, Ade Riska Sanjaya, Muhammad Arif Sari, Dian Ulfa Sari, Dian Ulfa Sarimuddin, Sarimuddin Setiana, Diana Sinaga, Sorbakti sirad, La Ode Siwi, Purwanto Susanti, Gemi Syukur, Moh Rezky Tahir Tahir Tahir Tahir Tahir, Tahir Tasni, Nurfaida William Widjaja Yakob, Muhammad Zulida, Evi

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