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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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Representasi (Eksternal-Internal) pada Penyelesaian Masalah Matematika Faruq, Achmad; Yuwono, Ipung; Chandra, Tjang Daniel
JURNAL REVIEW PEMBELAJARAN MATEMATIKA Vol 1 No 2 (2016)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15642/jrpm.2016.1.2.149-162

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 Irianti, Nathasa Pramudita; Subanji, Subanji; Chandra, Tjang Daniel
JMPM: Jurnal Matematika dan Pendidikan Matematika Vol 1, No 2: September 2016 - Februari 2017
Publisher : Universitas Pesantren Tinggi Darul 'Ulum Jombang

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.

PELATIHAN CALON PEMBINA OLIMPIADE MATEMATIKA BAGI GURU SMP DI KABUPATEN BLITAR Hasanah, Dahliatul; Chandra, Tjang Daniel; Irawati, Santi; Susanto, Hery
PEDULI: Jurnal Ilmiah Pengabdian Pada Masyarakat Vol 3 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (228.209 KB)

Pemerintah Indonesia setiap tahun mengadakan Olimpiade Sains Nasional (OSN). Soal-soal yang dilombakan dalam OSN umumnya bersifat soal yang tidak rutin yang metode penyelesaiannya menuntut pemikiran produktif seseorang untuk menggunakan strategi, pendekatan atau teknik khusus. Namun demikian, soal-soal yang demikian jarang ditemui di buku sekolah. Hal ini mengakibatkan siswa perlu disiapkan secara matang untuk mengikuti lomba tersebut. Guru di sekolah juga harus menguasai materi olimpiade untuk mempersiapkan siswa-siswanya mengikuti OSN. Berdasarkan survey yang dilakukan kepada 46 guru matematika SMP di Kabupaten Blitar, kebanyakan guru tidak familiar dan tidak siap membina siswa dengan soal-soal OSN. Sebanyak 61% menyatakan bahwa tidak ada pembinaan olimpiade di sekolah. Berdasarkan kondisi tersebut, pelatihan pembinaan olimpiade matematika bagi guru sangat perlu dilakukan. Kegiatan pengabdian berupa pelatihan pembinaan olimpiade ini dilakukan dalam beberapa tahap, yaitu (1) pemantapan materi olimpiade matematika bagi guru SMP; (2) pendampingan untuk guru peserta pelatihan dalam pembinaan mandiri di sekolah masing-masing menggunakan buku pembinaan yang disusun oleh tim pengabdian; (3) tahap evaluasi, yaitu guru-guru peserta pelatihan menyampaikan kendala-kendala yang dihadapi ketika mengadakan pembinaan di sekolah masing-masing. Peserta juga diberikan pre-test dan post-test untuk melihat adanya peningkatan pemahaman dan kemampuan menyelesaikan masalah OSN. Hasil dari pengabdian kepada masyarakat ini adalah adanya peningkatan kemampuan guru dalam menyelesaian masalah dan peningkatan kepercayaan diri guru dalam membina siswanya di sekolah.

PROSPECTIVE TEACHERS CONCEPTION OF MATHEMATICAL CREATIVE THINKING Purwosetiyono, Fransiskus Xaverius Didik; Sa'dijah, Cholis; Hidayanto, Erry; Chandra, Tjang Daniel; As'ari, Abdur Rahman; Irawan, Edy Bambang
International Journal of Insights for Mathematics Teaching (IJOIMT) Vol 1, No 2 (2018)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

The purpose of this study was to describe the initial conception of prospective teachers about creative thinking in mathematics. This research used a qualitative research method. The Research was conducted at private universities in Semarang, held in the second semester of the academic year 2016/2017. The subjects were six students of the seventh semester. This research used two instruments; test to explore the concept of creative thinking and interview. This study provides findings that there are similarities in the concept of prospective teachers in mathematical creative thinking. The prospective teacher's conception of the creative thinking of mathematics leads to the emergence of new concepts or ideas in completing mathematical problems based on experience. The appearance of the new idea in question is to solve a different problem from the existing procedure and solve the problem with a different perspective that is still logical. The prospective teacher's said that it was necessary for prospective teachers to understand the concept of creative thinking in mathematics to solve mathematical problems from various perspectives based on his learning experience.

IMITATING FAILURES IN COMMUNICATING SOLUTION OF MATHEMATICAL PROBLEM SOLVING OF ELEMENTARY SCHOOL STUDENTS Lestari, Andika Setyo Budi; Nusantara, Toto; Irawan, Edy Bambang; Chandra, Tjang Daniel; As'ari, Abdur Rahman
International Journal of Insights for Mathematics Teaching (IJOIMT) Vol 1, No 2 (2018)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Imitating performance is not a mediocre element, yet it is a unique ability possessed by humans. Researche concerning on imitating performance has been widely conducted in early childhood education and in adults educations. However, imitating performance studies related to elementary school context is rarely explored. This study was intended to figure out the imitating performance of 5th grade student. This study was analyzed qualitatively where the researcher involved in all stage of the research. The results of the research indicated that there were few imitating performance indicators that were not fullfiled. The students were not able to apply the examples in the new context, in other words the students had failed in applying the examples. Consequently, they faced difficulties in communicating the solutions of mathematical problems. Instead of helping the students, the key words provide by a teachers make the students confuse in resolving different problems.

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

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 Epidemi Sjat Pada Penyebaran Penyakit Aids Di Kecamatan Pujer Kabupaten Bondowoso Chandra, Tjang Daniel; Putri, Agesta Ameliya
Jurnal MIPA Vol 10, No 2 (2021)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jmuo.10.2.2021.34090

HIV berkembang menjadi Acquired Immune Deficiency Syndrome (AIDS) mengakibatkan kematian dengan melemahnya sistem imun dan mudahnya penyakit masuk ke dalam tubuh seseorang. Model matematika SJAT digunakan untuk menganalisis penyebaran AIDS dengan terdiri empat kelas yaitu kelas individu rentan, kelas individu terinfeksi HIV dengan gejala, kelas individu AIDS dan kelas individu mendapatkan pengobatan ARV. Tujuan penelitian ini yaitu melihat dinamika penyebaran penyakit AIDS, melakukan simulasi model terhadap penyebaran penyait AIDS di Kecamatan Pujer Kabupaten Bondowoso. Tahap menganalisis model yaitu mencari titik kesetimbangan, menganalisa titik setimbang, mencari bilangan reproduksi dasar, dan melakukan simulasi model menggunakan maple17. Berdasarkan hasil analisa diperoleh 0,02222489365 Â Sehingga mempunyai titik setimbang bebas penyakit. Artinya, pada waktu lama proporsi individu akan menuju titik kesetimbangan dengan rata-rata penyakit AIDS dalam populasi sudah tidak menyebarHIV develops into Acquired Immune Deficiency Syndrome (AIDS) resulting in death by weakening the immune system and the ease with which diseases enter a person's body. The SJAT mathematical model is used to analyze the spread of AIDS and consists of four classes, namely a class of susceptible individuals, a class of HIV-infected individuals with symptoms, a class of AIDS individuals and a class of individuals receiving ARV treatment. The purpose of this study is to analyze the stability of the SJAT Epidemic Model Stability on the HIV/AIDS AIDS in Pujer District Bondowoso Regency. The stage of analyzing the model is to find the equilibrium point, analyze the equilibrium point, find the basic reproduction number, and simulate the model using maple17. Based on the analysis results obtained . So that it has a disease-free equilibrium point. This means that in a long time the proportion of individuals will come to a point of equilibrium with the average AIDS disease in the population has not spread

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. 4 (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.v15i4.16704

Distance learning is a learning system that does not take place in one room and there is no face-to-faceinteraction between the teacher and the learner. This study aims to determine the impact of implementingdistance learning in Indonesia from a commognitive point of view. This research is a descriptive type ofresearch 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 Milesand Huberman method through reduction, display data, and conclusion, then it will be studied based on thecommognitive theory. The results show that based on commognitive studies, students are more likely to stillneed a visual mediator as a visible object to be used as a communication medium, its realization dependson the material context. Students need to communicate to ask questions related to material that has not beenunderstood. So it can be said that visual mediator is important during distance learning.

PENDAMPINGAN PENYUSUNAN SOAL AKM NUMERASI UNTUK GURU MATEMATIKA SMP di KOTA PROBOLINGGO Chandra, Tjang Daniel; As'ari, Abdur Rahman; Parta, I Nengah; Purwanto, Purwanto; Nasution, Syaiful Hamzah
PEDULI: Jurnal Ilmiah Pengabdian Pada Masyarakat Vol 5 No 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/peduli.v5i2.336

Abstrak Mulai tahun 2021 Kementerian Pendidikan dan Kebudayaan akan mulai menerapkan asesmen nasional. Asesmen nasional mengukur dua macam literasi yaitu literasi membaca dan literasi matematika ( atau Numerasi ). Salah satu instrumen utama yang digunakan dalam asesmen nasional adalah Asesmen Kompetensi Minimum (AKM) yang mengukur literasi membaca dan literasi matematika ( numerasi ) siswa. AKM numerasi merupakan hal yang baru bagi para guru matematika SMP. Oleh karena itu tim pengabdian masyarakat jurusan matematika UM merencanakan mengadakan workshop penyusunan AKM numerasi bagi guru matematika SMP di kota Probolinggo. Diharapkan melalui workshop ini, para guru dapat disiapkan untuk membuat soal-soal AKM numerasi. Dilaksanakan 2 kali workshop. Pada workshop pertama, tim pengabdian memberikan beberapa materi seperti penjelasan tentang AKM numerasi, pembuatan soal AKM numerasi tentang geometri dan aljabar, dan bagaimana mengemas soal AKM numerasi dalam bentuk e-LKPD. Sebelum acara diakhiri, para guru diminta untuk mencoba membuat soal AKM numerasi dan e-LKPD. Mereka diberi waktu 2 minggu untuk mengerjakan tugas tersebut dan mempresentasikan hasilnya pada workshop kedua. Hasil yang diperoleh dari workshop adalah para guru memperoleh manfaat tentang materi AKM dan bagaimana menyusun soal AKM numerasi. Kata Kunci: workshop; soal AKM

Kemampuan Number Sense Siswa Sekolah Menengah Pertama (SMP) Kelas VII pada Materi Bilangan Anis Suraida Safitri; Sri Mulyati; Tjang Daniel Chandra
Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) Vol 1 No 1 (2017): Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai Islami )
Publisher : Mathematics Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (335.996 KB)

Kemampuan number sense (kepekaan bilangan) dibutuhkan bagi siswa dalam proses pembelajaran matematika. Siswa dengan number sense yang baik akan mampu memanfaatkan pengetahuannya tentang bilangan dalam pemecahan masalah matematika. Oleh karena itu, tinjauan mengenai kemampuan number sense siswa perlu dilakukan untuk melihat sejauh mana siswa dapat menggunakan kemampuan number sensenya dalam situasi masalah. Berdasarkan latar belakang tersebut, penelitian kualitatif ini bertujuan untuk mendeskripsikan kemampuan number sense siswa kelas VII di Lembaga Bimbingan Belajar Surya Gemilang. Subjek penelitian sebanyak 3 orang, yaitu masing-masing 1 subjek dari kelompok tinggi, sedang, dan rendah. Kemampuan number sense digali melalui wawancara terpadu pada hasil tes kemampuan number sense siswa. Kemudian dianalisis secara deskriptif kualitatif. Dari hasil analisis data, peneliti menyimpulkan bahwa semua subjek tidak memiliki kepekaan yang cukup baik mengenai hubungan antar bilangan, operasi bilangan, hubungan antar operasi bilangan, dan sifat-sifatnya sehingga semua subjek tidak fleksibel dan berfokus pada penggunaan perhitungan prosedural yang mereka terima di sekolah ketika memecahkan masalah.

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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