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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Jurnal MIPA Wahana Matematika dan Sains Journal on Mathematics Education (JME) Journal on Mathematics Education (JME) AKSIOMA: Jurnal Program Studi Pendidikan Matematika Kubik JIPM (Jurnal Ilmiah Pendidikan Matematika) EDU-MAT: Jurnal Pendidikan Matematika Al-Jabar : Jurnal Pendidikan Matematika Briliant: Jurnal Riset dan Konseptual Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) Jurnal Kajian Pembelajaran Matematika Jurnal Mercumatika : Jurnal Penelitian Matematika dan Pendidikan Matematika JRPM (Jurnal Review Pembelajaran Matematika) JMPM: Jurnal Matematika dan Pendidikan Matematika PRISMA JOHME: Journal of Holistic Mathematics Education IndoMath: Indonesia Mathematics Education BAREKENG: Jurnal Ilmu Matematika dan Terapan Jurnal Tadris Matematika MENDIDIK: Jurnal Kajian Pendidikan dan Pengajaran Jurnal Cendekia : Jurnal Pendidikan Matematika Prima: Jurnal Pendidikan Matematika PEDULI: Jurnal Imiah Pengabdian Pada Masyarakat JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) International Journal of Insights for Mathematics Teaching (IJOIMT) Jurnal Paedagogy Jurnal Pengabdian kepada Masyarakat Nusantara KUBIK: Jurnal Publikasi Ilmiah Matematika Indian Journal of Forensic Medicine & Toxicology Kognitif: Jurnal Riset HOTS Pendidikan Matematika Journal of Disruptive Learning Innovation (JODLI) Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Journal of Education for Sustainability and Diversity Jurnal MIPA dan Pembelajarannya Jurnal Ekonomi, Bisnis dan Pendidikan (JEBP) PEDAMAS (Pengabdian Kepada Masyarakat) Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) Jurnal Tadris Matematika

Tjang Daniel Chandra

Universitas Negeri Malang

Author-ID : 2388439

Religion Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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PENERAPAN PEMBELAJARAN PROBLEM POSING UNTUK MENINGKATKAN KEMAMPUAN BERTANYA SISWA KELAS VII-G SMP NEGERI 9 MALANG Putu Evi Paramithasari Wardana; Tjang Daniel Chandra
Jurnal Kajian Pembelajaran Matematika Vol 1, No 1 (2017): Jurnal Kajian Pembelajaran Matematika
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (873.232 KB)

Based on observations and interviews with Public Junior High School 9 Malang class VII-G mathematics teacher, Ms. DL, it is revealed that class VII-G students were passive in asking questions. They tended to answer predetermined questions asked by the teacher. At the opposite, while asked if they have any questions, the most of the students became silent. If students are unable asking questions, it is impossible to confirm students’ wants, in addition to the lack of students’ participation in the learning process and incapability of teachers to examine students’ level of understanding from objects being learned. Based on presented problems, it is necessary to build a learning environment where students could ask questions according to their cognitive levels. Learning style applied on this research was problem posing. By utilizing the learning style, it is expected that students’ question quality would increase. The purpose of this study is to describe problem posing learning style which has capability in increasing students’ questioning ability via classroom action research. Research subjects selected were 32 Public Junior High School class VII-G students learning perimeter and the area of square. The learning style application resulted in students’ inquiring ability improvement. Based on the data of students’ questioning ability test calculated classically, it revealed 67.5% question quality score in cycle 1 and 78.3% in cycle 2. Relevance of percentage score with learning materials is 91.7% in cycle 1 and 95.7% in cycle 2. The percentage of linguistic score is 68.3% in cycle 1 and 79.4% in cycle 2.

ANALISIS PROBLEM POSING SISWA DITINJAU DARI TAKSONOMI BLOOM Saddam Hussen; Abdur Rahman Asari; Tjang Daniel Chandra
Jurnal Kajian Pembelajaran Matematika Vol 1, No 2 (2017): Jurnal Kajian Pembelajaran Matematika
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.732 KB)

This study aimed to describe the analysis of problem posing students in terms of taxonomy bloom. Mathematical material that is chosen is a square and a triangle. This study used a qualitative approach with descriptive research. This study was conducted in one of the SMP Negeri Malang, with research subjects IX class consisting of 32 students. Researchers gave math tests to be analyzed based on blooms taxonomy, and researcher mengkategorisasikannya by high-level thinking skills or Higher Order Thinking Skills (HOTS) and low-level thinking skills or Lower Order Thinking Skills (LOTS). The results of this study indicate that: (1) 96.875% of the 32 students to questions categorized remembering, understanding, and applying, therefore the students included LOTS. (2) there is one category of students including analyzing, it means the student has included HOTS.

COVID -19 : The Effects of Distance Learning in Indonesia based on a Commognitive Perspective Adika Setyo Budi Lestari; Toto Nusantara; Susiswo; Tjang Daniel Chandra; Nonik Indrawatiningsih
Indian Journal of Forensic Medicine & Toxicology Vol. 15 No. 3 (2021): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v15i3.15589

Distance learning is a learning system that does not take place in one room and there is no face-to-face interaction between the teacher and the learner. This study aims to determine the impact of implementing distance learning in Indonesia from a commognitive point of view. This research is a descriptive type of research with a total of 543 participants who come from high school students in Pasuruan district, Indonesia. Data collection using a questionnaire. After the questionnaire is collected, it is analyzed using the Miles and Huberman method through reduction, display data, and conclusion, then it will be studied based on the commognitive theory. The results show that based on commognitive studies, students are more likely to still need a visual mediator as a visible object to be used as a communication medium, its realization depends on the material context. Students need to communicate to ask questions related to material that has not been understood. So it can be said that visual mediator is important during distance learning.

Metode Level Set pada Hyperbolic Mean Curvature Flow Vita Kusumasari; Makbul Muksar; Tjang Daniel Chandra; Kridha Pusawidjayanti
Jurnal Mercumatika : Jurnal Penelitian Matematika dan Pendidikan Matematika Vol 5, No 2 (2021)
Publisher : Universitas Mercu Buana Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26486/jm.v5i2.1437

Pada artikel ini, metode level set diterapkan pada masalah pergerakan kurva berdasarkan hyperbolic mean curvature flow. Simulasi yang dilakukan meliputi masalah hyperbolic mean curvature flow dan hyperbolic mean curvature flow dengan kendala. Realisasi pergerakan kurva pada kedua permasalahan masing-masing menggunakan algoritma Hyperbolic MBO (HMBO) dan algoritma HMBO yang telah dimodifikasi untuk masalah dengan kendala. Kurva initial pada kedua permasalahan berupa lingkaran. Hasil simulasi yang ditampilkan berupa plot level set nol dan plot tiga dimensi. Hasil pergerakan kurva pada kedua permasalahan menunjukkan bahwa kurva semakin menyusut. Untuk masalah hyperbolic mean curvature flow, kurva akan menyusut dan menghilang. Sedangkan pada masalah hyperbolic mean curvature flow dengan kendala, kurva akan menyusut dan berhenti bergerak setelah menyentuh kurva kendala.

Representasi (Eksternal-Internal) pada Penyelesaian Masalah Matematika Achmad Faruq; Ipung Yuwono; Tjang Daniel Chandra
JRPM (Jurnal Review Pembelajaran Matematika) Vol. 1 No. 2 (2016)
Publisher : Department of Mathematics Education, Faculty of Tarbiyah and Teacher Training, UIN Sunan Ampel Surabaya

This study aimed to describe the pictorial and schematic representations of student understanding. The subjects were 31 students of grade VIII. The results of this study is two pictorial representations (right and wrong) and two schematic representation (right and wrong). Representation understanding of student described as follows: translational stage, students read the word problem to identify relational statements and quantity, then he transforms the mathematical idea into another form that is more easily understood. Integration stage, students identifying relational relationships between mathematical ideas to be organized into a scheme or image. Solution stage, students devise a solution based on the scheme or image that was created, and then perform calculations and check the answer.

Proses Berpikir Siswa Quitter dalam Menyelesaikan Masalah SPLDV Berdasarkan Langkah-langkah Polya Nathasa Pramudita Irianti; Subanji Subanji; Tjang Daniel Chandra
JMPM: Jurnal Matematika dan Pendidikan Matematika Vol 1, No 2: September 2016 - Februari 2017
Publisher : Universitas Pesantren Tinggi Darul Ulum Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26594/jmpm.v1i2.582

Penelitian bertujuan mendeskripsikan proses berpikir siswa quitter dalam menyelesaikan masalah SPLDV. Pertama, dilakukan tes ARP (Adversity Response Profile) untuk mengetahui tipe adversity quotient dari masing-masing siswa. Selanjutnya, dipilih siswa dengan tipe quitter. Siswa diberikan tugas pemecahan masalah SPLDV dan wawancara berbasis tugas. Dalam pemecahan masalah ini, digunakan langkah-langkah pemecahan polya yaitu memahami masalah, menyusun rencana penyelesaian, menyelesaikan masalah sesuai perencanaan, dan memeriksa kembali hasil yang telah diperoleh. Hasilnya, siswa dengan tipe quitter melakukan asimilasi saat memahami masalah dan akomodasi pada langkah menyusun rencana penyelesaian, menyelesaikan masalah sesuai perencanaan, dan memeriksa kembali hasil yang telah diperoleh. Untuk masalah rumit, siswa dengan tipe quitter melakukan asimilasi salah (asimilasi yang memberikan hasil salah) ataupun akomodasi tidak sempurna karena informasi yang dimiliki kurang.

Analisis Kestabilan Model Matematika Pada Penyebaran Penyalahgunaan Napza Dengan Memperhatikan Tipe Rehabilitasi Reza Umami Khoirunisa'; Tjang Daniel Chandra
KUBIK Vol 6, No 1 (2021): KUBIK: Jurnal Publikasi Ilmiah Matematika
Publisher : Jurusan Matematika, Fakultas Sains dan Teknologi, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/kubik.v6i1.12525

Napza merupakan singkatan dari narkotika, psikotropika, dan zat adiktif lainnya. Napza diciptakan untuk kebutuhan medis dan pengobatan serta memiliki efek yang sangat, sehingga peredarannya diatur oleh pemerintah. Jika napza disalahgunakan akan berakibat buruk terhadap kesehatan karena ketergantungan. Untuk mengatasi masalah tersebut, pemerintah melaksanakan program rehabilitasi sebagai upaya pencegahan peningkatan jumlah napza. Tujuan dari penelitian ini adalah untuk menganalisis model kestabilan matematika pada penyebaran napza dengan memperhatikan tipe rehabilitasi dan mensimulasikan model berdasarkan data yang diperoleh dari buku Press Release Akhir Tahun 2020 Badan Narkotika Nasional. Model matematika tersebut membagi populasi atas lima kelompok individu. Dari hasil analisa, didapatkan dua titik kesetimbangan yaitu titik kesetimbangan bebas napza dan endemik. Jika nilai Maka titik kesetimbangan bebas napza dikatakan stabil asimtotik lokal, dan jika nilai nilai maka titik ekuilibrium endemik dikatakan stabil asimtotik lokal. Kasus pencarian napza di Indonesia tahun 2020, diperoleh bilangan dasar mengartikan catatan napza tidak lagi menjadi endemik dalam waktu tertentu.

EXPLORING THE EXPLANATION OF PRE-SERVICE TEACHER IN MATHEMATICS TEACHING PRACTICE Wasilatul Murtafiah; Cholis Sa'dijah; Tjang Daniel Chandra; Susiswo Susiswo; Abdur Rahman As'ari
Journal on Mathematics Education Vol 9, No 2 (2018)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.9.2.5388.259-270

This study aims to describe the types of explanations made by pre-service teachers in mathematics learning. In this research, the types of explanations are used to describe the explanatory trends used by pre-service teachers in mathematics teaching. The descriptive qualitative research was chosen in this research. The research subjects are pre-service teacher as the students of Mathematics Education of PGRI Madiun University and Madura University who are studying Field Experience Practice. Of the 105 mathematics student, five students with a cumulative grade achievement of more than 3.50 were observed during the teaching practice at the school for approximately five meetings. The research data was obtained from observation, video recording, and interview. Data analysis was done through data condensation, data presentation, and conclusion/verification focused on pre-service teacher explanation on mathematics learning activity. The research findings indicate that the explanation used by the pre-service teacher in the mathematics learning starting from the most frequently used is the descriptive explanation (51,7%), giving of reason (36,2%) and interpretative (12,1%). Descriptive explanations are used to describe mathematical procedures. The type of reason-giving explanation is used to explain reasons based on mathematical principles. Furthermore, the interpretative explanation is used to explain the concepts and facts of mathematics.

Analisis kestabilan model penyebaran penyakit tuberkulosis dengan menggunakan mseitr Dwi Roudhotillah; Tjang Daniel Chandra
Wahana Matematika dan Sains: Jurnal Matematika, Sains, dan Pembelajarannya Vol. 15 No. 2 (2021): AGUSTUS 2021
Publisher : Universitas Pendidikan Ganesha

Penyakit Tuberkulosis adalah penyakit yang disebabkan oleh infeksi bakteri yang bernama Mycrobacterium tuberculosis dengan media penularan melalui udara. Hal ini terjadi ketika seorang invidu tengah menghirup bakteri dari penderita yang sedang batuk, bersin, berbicara atau meludah Kasus Tuberkulosis di Indonesia per 17 Mei 2018 sebanyak 420.994 kasus. Tiga provinsi yang menjadi penyumbang terbanyak kasus Tuberkulosis adalah Jawa Barat, Jawa Timur, dan Jawa tengah sebesar 44% dari seluruh kasus. Tujuan dalam penelitian ini yaitu menganalisis kasus penyebaran penyakit Tuberkulosis di Jawa Timur dengan menggunakan model MSEITR dan mensimulasikan model yang dihasilkan dengan menggunakan data yang didapatkan dari Data Profil Kesehatan Indonesia tahun 2018 di Provinsi Jawa Timur. Langkah-langkah yang dilakukan yaitu mencari titik equilibrium, manganalisa kestabilan dari titik equilibrium, menghitung bilangan reproduksi dasar , dan mendapatkan hasil simulasi model MSEITR dengan Maple17. Menurut hasil analisa yang telah dilakukan, terdapat dua titik equilibrium berupa titik equilibrium bebas penyakit, dan titik equilibrium endemik. Apabila bilangan reproduksi dasar maka disimpulkan bahwa titik equilibrium bebas penyakit dalam keadaan stabil asimtotik lokal, apabila maka disimpulkan bahwa titik equilibrium endemik dalam keadaan stabil asimtotik lokal. Berdasarkan data kasus penyebaran penyakit Tuberkulosis di Jawa Timur telah diperoleh bilangan reproduksi dasar . Sehingga dapat disimpulkan bahwa penyakit Tuberkulosis di Jawa Timur tidak akan menjadai endemik dengan menggunakan model MSEITR.Kata-kata kunci: MSEITR; Tuberkulosis; Bilangan Reproduksi Dasar

Condition of Students' Mathematical Reasoning Abilities Based on Their Ability to Argue Arlina Trie Cahyono; Susiswo Susiswo; Tjang Daniel Chandra
Journal of Disruptive Learning Innovation (JODLI) Vol 2, No 2 (2021)
Publisher : Universitas Negeri Malang

This study aims to reveal the condition of students' reasoning abilities based on the way students argue. This research uses a qualitative-descriptive approach. The subjects in this study were 3 students of junior high school with high reasoning abilities and 3 students with low reasoning abilities who viewed the reasoning ability scores when providing problem solving solutions on the written test. The data obtained in this study were in the form of students' written test scores and the results of student interviews. Interviews were conducted to bring up students 'ability to argue that describe and reveal the condition of students' reasoning abilities in the process of solving problems. The results of students 'arguments are analyzed and adjusted to the model of StephenToulmin's argument which reveals that there are 6 components of the argumentation to show the seriousness of students in arguing in order to obtain valid argument results to assess students' reasoning abilities. The arguments from students succeeded in uncovering 4 conditions that describe the conditions of students' mathematical reasoning abilities. These conditions are: 1) Students who show high reasoning ability in written tests and are able to show their reasoning process in the arguments that are brought up, 2) Students who show low reasoning abilities in written tests but are able to show their reasoning processes in the arguments that are brought up, 3) Students which shows a high reasoning ability in a written test but have not been able to demonstrate the reasoning process in the arguments that are brought up, and 4) Students who show a low reasoning ability in a written test and have not been able to demonstrate their reasoning process in the arguments that are brought up.

Co-Authors Abadyo Abadyo Abdur Rahman As’ari Achmad Faruq Achmad Faruq, Achmad Adika Setyo Budi Lestari Agung Prasetyo Abadi Agustin, Nana Maulidah Aini Renanda Alifiana Mareta Andika Setyo Budi Lestari Anis Suraida Safitri Anita Dwi Septian Anita, Yuli Aprilia Dwi Mayangsari Arlina Trie Cahyono Atmaja, Muhammad Galih Aziz Rizky Muhdiyanto Azzahra, Rachel Aura Baehaqi, Mohammad Romdhon Cesaria, Ana Apsari Cholis Sadijah, Cholis Cholis Sa’dijah Dahliatul Hasanah Denis Eka Cahyani Dwi Hidayanti, Dwi Dwi Roudhotillah Dwiyana Dwiyana Edy Bambang Irawan Erry Hidayanto Fadhila Kartika Sari Farabi, Muhammad Al Fauzan, Hakmi Rais Fauziyyah Alimuddin Ferdiansyah, Hanief Febry Fidia Lestariningsih Hery Susanto Hery Susanto I Made Sulandra I Nengah Parta Ida Ayu Putu Sri Widnyani Ika Rahayu Sintiya Dewi Indrani Eka Prastya Zahroh Indrawatiningsih, Nonik Ipung Yuwono Ipung Yuwono, Ipung Kamaliyah Kadir Kridha Pusawidjayanti Lathiful Anwar Laurentcia Noviafta Widya Lestari, Andika Setyo Budi Makbul Muksar Marini Marini Maughfiroh Firdausi, Unzil Muhammad Galih Atmaja Mukhammad Solikhin Mustaghisa, Agis Nana Maulidah Agustin Nathasa Pramudita Irianti Nathasa Pramudita Irianti, Nathasa Pramudita Ningsih, Nova Widia Nunung Nurjanah Nur Roudlotul Jannah Nuratiqoh, Nuratiqoh Nurul Audhifa Utami Permata, Gloria Indah Permatasari, Putri Intan Pradina Parameswari Purwanto Purwanto Purwosetiyono, Fransiskus Xaverius Didik Putri, Agesta Ameliya Putu Evi Paramithasari Wardana Qohar, Abd. Rachmalia Vinda Kusuma Rahmadani, Desi Ramdhan Fazrianto Suwarman Rani Martalisa Taorina Reza Umami Khoirunisa' Rianti Mandasari Rizka Zulvana Wardhani Roudhotillah, Dwi Rustanto Rahardi Saddam Hussen Safikurrohman, Achmad Saputri, Risma Rintias Sari, Feti Eka Ratna Sisworo Sri Mulyati Sri Mulyati Subanji Subanji Susilawati Susilawati Susiswo Swasono Rahardjo Syaiful Hamzah Nasution Thomas Soseco Toto Nusantara Varetha Lisarani Vita Kusumasari Wahyu Arianto Wasilatul Murtafiah Widya, Laurentcia Noviafta Yuniar Ika Putri Pranyata Zahroh, Indrani Eka Prastya Zida Amalia

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