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Subanji Subanji

Universitas Negeri Malang

Author-ID : 2388527

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Mathematics Neuroscience Physics Social Sciences Other

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PENALARAN INDUKTIF SISWA SMA DALAM MENYELESAIKAN MASALAH TRANSFORMASI GEOMETRI Serli Evidiasari; Subanji Subanji; Santi Irawati
Jurnal Kajian Pembelajaran Matematika Vol 3, No 2 (2019): JURNAL KAJIAN PEMBELAJARAN MATEMATIKA
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1182.133 KB)

This study describes the inductive reasoning of high school students in solving geometry transformation problems.The steps of inductive reasoning in mathematics namely: (1) discussing pattern that occur, (2) making guesses about general patterns that might apply, (3) making generalizations, (4) proving generalizations deductively. The assesment used in this study is descriptive qualitative. The data source is the result of a geometry transformation test involving 35 students grouped by ability are high, intermediate and low. Then select 3 students who represent each group. The results of this study are high ability students can perform all streps of inductive reasoning and the answer given are appropriate, capable students are able to take all the steps but still make some fault in generalizaton step, low ability student can analyze data only and can not interpret mathematical symbols.

STUDI KASUS : KOMUNIKASI MATEMATIS SISWA HOMESCHOOLING MELALUI GESTURE PADA MATERI IRISAN DUA HIMPUNAN Fitri Umardiyah; Subanji Subanjo; Dwiyana Dwiyana
Jurnal Kajian Pembelajaran Matematika Vol 1, No 2 (2017): Jurnal Kajian Pembelajaran Matematika
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

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Penelitian ini bertujuan mendeskripsikan komunikasi matematis melalui gesture pada materi operasi irisan dua himpunan. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kualitatif. Subjek pada penelitian ini adalah seorang siswa Homeschooling kelas VII. Peneliti melakukan pengambilan data melalui wawancara dan observasi selama pembelajaran . Untuk memperkuat data dalam penelitian ini, peneliti merekam kegiatan pembelajaran dan wawancara secara audio visual. Hasil penelitian menunjukkan bahwa (1) siswa mengomunikasikan ide matematis dengan singkat melalui deictic gesture berupa gesture menunjuk tulisan yang ia buat, (2) siswa mengomunikasikan ide matematis dengan bebas (freedom) melalui iconic gesture yang berupa gesture menggambar diagram Venn, (3) siswa mengomunikasikan ide matematis melalui methaporic gesture yang berupa gesture yang menjelaskan konten abstrak yaitu notasi pembentuk himpunan

DESKRIPSI KESALAHAN STRUKTUR BERPIKIR SISWA SMP DALAM MENYELESAIKAN MASALAH GEOMETRI SERTA DEFRAGMENTINGNYA: SUATU STUDI KASUS Taufiq Hidayanto; Subanji Subanji; Erry Hidayanto
Jurnal Kajian Pembelajaran Matematika Vol 1, No 1 (2017): Jurnal Kajian Pembelajaran Matematika
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

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It is revealed that as a compulsory mathematic subject for junior high school students, most students are struggling to solve geometric problem. As an effort to fix this condition, this article describes mistakes of junior high school students’ structural thinking in solving geometric problem. Subjects’ mistake were assessed by Subanji’s (2015) theory of conceptual construction mistake and mathematical problem solving. Researcher then defragmented subjects’ thinking structure in order to solve problems effectively. The result shows that subjects experienced miss logical construction and construction gap. Miss logical construction occurred because students’ logical mistake in solving the problem, while the construction gap happened due to certain incomplete schemes in subjects’ problem solving thinking structure. Defragmenting was conducted by assessing mistakenly constructed scheme. Then, unconstructed scheme was revealed. When scheme had considered as sufficient, the constructed scheme were knitted into an interconnected scheme and subjects’ thinking structure became complete. Decomposition of incorrect structured schemes used cognitive conflict, while scheme and scheme knitting applied scaffolding.

PENERAPAN PEMBELAJARAN INKUIRI HIPOTETIS UNTUK MENINGKATKAN AKTIVITAS DAN MEMAHAMKAN SISWA MATERI BARISAN DAN DERET Endang Trinoviawati; Subanji Subanji; I Made Sulandra
Jurnal Kajian Pembelajaran Matematika Vol 3, No 2 (2019): JURNAL KAJIAN PEMBELAJARAN MATEMATIKA
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

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Sequence and series have been taught directly through theory from books, making it difficult for students to link between concepts or between theories, so that there are still many students who can only solve problems limited to what has been exemplified by the teacher. This study aims to describe the application of hypothetical inquiry learning that can increase student activity and understand the sequence and series material. This research is a classroom action research conducted in April 2017. The research subjects were 38 students of class X IPA 5 SMAN 8 Malang. The results showed that applying hypothetical inquiry in learning could increase student activity and learning completeness. The increase in student activity from 11% in cycle I to 63% active criteria in cycle II, the percentage of students completing in cycle I, namely 63%, increased to 92% in cycle II.

METAKOGNISI SISWA DALAM PEMECAHAN MASALAH TRIGONOMETRI Dimas Femy Sasongko; Subanji Subanji; I Made Sulandra
Jurnal Kajian Pembelajaran Matematika Vol 2, No 2 (2018): Jurnal Kajian Pembelajaran Matematika
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

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Metacognition is an influencing factor in mathematical problem solving. The aim of this qualitative research is to comprehend metacognition from one student of High Problem Solving Achiever (HPSA) and one student of Low Problem Solving Achiever (LPSA) when solving trigonometry problems that focused on metacognitive awareness, metacognitive regulation, and metacognitive evaluation aspects. The finding indicates that in metacognitive awareness, LPSA has difficulty to model the problem. In metacognitive regulation, the global plan, local plan, and actions which composed by LPSA didn’t tend to the solution. In metacognitive evaluation, eventhough LPSA did lots of metacognition activities but it didn’t guarantee achieving correct solution

DIAGNOSIS KESULITAN PENALARAN MATEMATIS SISWA DALAM MENYELESAIKAN MASALAH POLA BILANGAN Nur Indah Permata Sari; Subanji Subanji; Erry Hidayanto
Jurnal Kajian Pembelajaran Matematika Vol 2, No 2 (2018): Jurnal Kajian Pembelajaran Matematika
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

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Tujuan penelitian ini adalah mendeskripsikan bentuk kesalahan penalaran matematis siswa dalam menyelesaikan masalah pola bilangan. Jenis penelitian ini adalah penelitian kualitatif deskripstif. Subjek penelitian adalah siswa kelas VII SMP Negeri 1 Pogalan Trenggalek yang dipilih berdasarkan kesalahan dalam tes diagnostik dan kemampuan komunikasi. Data penelitian dikumpulkan melalui tes dan wawancara. Data penelitian ini adalah lembar hasil jawaban siswa melalui tes awal (tes diagnostik). Aktivitas analisis data adalah (1) mengolah dan mempersiapkan data untuk dianalisis, (2) membaca keseluruhan data, (3) menganalisis lebih detail dengan meng – coding data, (4) menerapkan proses coding, (5) menunjukkan bagaimana deskripsi dan tema-tema ini akan disajikan kembali dalam laporan kualitatif serta (6) memaknai data. Hasil penelitian menunjukkan bahwa kesulitan yang dialami subjek SP I, SP II, dan SP III dalam menyelesaikan masalah pola bilangan yaitu (1) mendeteksi keteraturan dalam suatu pola, (2) merumuskan pola dari susunan-susunan bola, dan (3) menentukan banyaknya bola pada suku ke-n.

METAKOGNISI SISWA BERGAYA KOGNITIF FIELD-INDEPENDENT DALAM MEMECAHKAN MASALAH MATEMATIKA BERDASARKAN TAHAPAN POLYA Afin Nur Latifa; Subanji Subanji; Erry Hidayanto
Jurnal Kajian Pembelajaran Matematika Vol 4, No 1 (2020): Jurnal Kajian Pembelajaran Matematika
Publisher : FMIPA UNIVERSITAS NEGERI MALANG

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Metacognition is one important component in cognitive function and cognitive development that has a close relationship with students' problem solving abilities. One factor that can affect student metacognition but is rarely considered in mathematics learning is student cognitive style. The purpose of this study is to describe the metacognition of field-independent cognitive style students in solving mathematical problems based on Polya's stages. This research is a descriptive qualitative study using a problem solving test instrument and interview guidelines to collect data. The subjects in this study were 2 field-independent cognitive style students. The subject was asked to work on mathematical problem solving problems and then interviewed based on the results of student work. The results showed that students' metacognition awareness, regulation, and evaluation emerged during the problem solving stage. This shows that metacognition can help students with field-independent cognitive style in solving problems.

Students’ Semantic-Proof Production in Proving a Mathematical Proposition Syamsuri Syamsuri; Purwanto Purwanto; Subanji Subanji; Santi Irawati
Journal of Education and Learning (EduLearn) Vol 12, No 3: August 2018
Publisher : Intelektual Pustaka Media Utama

Proving a proposition is emphasized in undergraduate mathematics learning. There are three strategies in proving or proof-production, i.e.: procedural-proof, syntactic-proof, and semantic-proof production. Students’ difficulties in proving can occur in constructing a proof. In this article, we focused on students’ thinking when proving using semantic-proof production. This research is qualitative research that conducted on students majored in mathematics education in public university in Banten province, Indonesia. Data was obtained through asking students to solve proving-task using think-aloud and then following by interview based task. Results show that characterization of students’ thinking using semantic-proof production can be classified into three categories, i.e.: (1) false-semantic, (2) proof-semantic for clarification of proposition, (3) proof-semantic for remembering concept. Both category (1) and (2) occurred before students proven formally in Representation System Proof (RSP). Nevertheless, category (3) occurred when students have proven the task in RSP then step out from RSP while proving. Based on the results, some suitable learning activities should be designed to support the construction of these mental categories.

Student difficulties in solving covariational problems Sandie; Purwanto; Subanji; Erry Hidayanto
International Journal of Humanities and Innovation (IJHI) Vol. 2 No. 2 (2019): June
Publisher : Center for Humanities and Innovation Studies

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33750/ijhi.v2i2.38

This study discusses the difficulties of students in solving covariational problems. The study was conducted on 25 students with 6th-semester studies who had completed calculus courses. Students are asked to verbalize what they think while solving problems (think aloud). Next, students are interviewed with an in-depth interview technique to explore the thinking process. The results showed 88% of students had difficulties when given covariational problems. Students are familiar with mathematical problems with counting operations. When given a problem without information, students experience difficulties.

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.

Co-Authors Abdul Haris Rosyidi Abdur Rahman As’ari Abdur Rohim Abdur Rohim, Abdur Abdurrahim Arsyad Afin Nur Latifa Agung Prasetyo Abadi Agus Prianto Ahmad Farid Haebah Akbar Sutawidjadja Akbar Sutawidjaja Akbar Sutawidjaja, Akbar Alhikma, Nur Alaviyah Alif Mudiono Alip Rahmawati Zahrotun Nisak Alyani, Nabila Nur Amalia Silwana Ana Fitriah ANDRIANI, RULI Anggraini Dwi Ikhwani Anggraini, Elisa Annisa Andika Karisa Ari Kusuma Sulyandari Aribowo, Bayu Exsanty Arif Rahman Hakim Arifah Adlina Rashahan Astuti, Ririn Novia Atiqa Firdaus Aulia Nadia Sari Barep Yohanes Bhakti Setya Budi Budi, Bhakti Setya Cholis Sa’dijah Chusnul Ma'rifah Chusnul Ma'rifah Daroini, Mustain Bagus Deni Hamdani Desi Rahmadani Dian Kurniati Didimus Nuham, Didimus Dimas Femy Sasongko Dwiyana Dwiyana Dwiyana Dwiyana Dyah Ayu Pramoda Wardhani Dyah Triwahyuningtyas Dyah Triwahyuningtyas Edy Bambang Irawan Eka Resti Wulan Eko Waluyo Elli Kusumawati Endang Trinoviawati Erry Hidayanto Evidiasari, Serli Fadhil Zil Ikram Feriyanto Feriyanto Feriyanto Feriyanto HAFIIZH, MOCHAMMAD Hamdani, Deni Hamdani, Deni Hery Susanto Hery Susanto Hidayati, Vivi Rachmatul I Gusti Agung Shomia Anjali I Ketut Suada I Made Sulandra I Nengah Parta Iffanna Fitrotul Aaidati Ika Santia Imam Rofiki Indah Syafitri T Indriati Nurul Hidayah Intan Sari Rufiana Ipung Yuwono Iqbal Ramadani Irawati, Santi Irna Natalis Sanit Isfina Adiyah Ishmatul Maula, Ishmatul Ismatul Maula Jennah, Mufliatul Kadek Adi Wibawa Karolin Natalia T Khair, Muhammad Sa'duddien Khalimatus Syuhriyah Laelinatul Choeriyah Laelinatul Choeriyah Laily Wijayanti Utami Lamowa, Rachmad Abubakar Lestary, Ratnah Lydia Lia Prayitno Makbul Muksar Malik, Fatus Atho'ul Manyunu, Muhamatsakree Martha Lestari Mega Fatimah Rosana Miftachus Sururoh Mohammad Dadan Sundawan Mufidha, Nurul Muhamatsakree Manyunu Muhammad Ainur Rizqi Muhammad Irfan Muhammad Irfan Muksar Makbul Muniroh Novisa Nabilah Mansur Nathasa Pramudita Irianti Nathasa Pramudita Irianti, Nathasa Pramudita Netti, Syukma Netti Syukma Ningtyas, Yoga Dwi Windy Kusuma Ninik Mutianingsih, Ninik Novi Nurhayati Novisa, Muniroh Nur Fitri Amalia Nur Hasan Nur Indah Permata Sari Nurul Mufidha Nury Azkiya Umamy Permadi, Hendro Puguh Darmawan Punaji Setyosari Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto, Purwanto Puspita Ayu Damayanti Putri Ariningtyas Putri, Nanda Azzahra Qohar, Abd. Rashahan, Arifah Adlina Refni Adesia Pradiarti Risa Utaminingsih Rizky Nova Damayanti Ruli Andriani Rustanto Rahardi Sandie Sartati, Setiawan Budi Satriya Adika Arif Atmaja Satriya Adika Arif Atmaja Sa’dijah, Cholish Selfia Putri Selly Meinda Dwi Cahyaningsih Serli Evidiasari Serli Evidiasari Setiawan Budi Sartati Silwana, Amalia Sisworo Siti Salina Mustakim Sri Mulyati Sri Mulyati Sri Subarinah Sri Untari Stefani Putri Andrianti Suci Yuniati Sudirman Sudirman Sudirman Sudirman Sukorianto Sukorianto Sukoriyanto Suryaningrum, Christine Wulandari Susiswo Sutawdjaja, Akbar Sutawidjadja, Akbar Swasono Rahardjo Swasono Raharjo Swastika, Galuh Tyasing Syamsiar, Syamsiar Syamsul Hadi Syamsuri Syamsuri Syamsuri Syamsuri Syamsuri Syamsuri, Syamsuri Syarifudin Syarifudin Syita Fatih 'Adna Taufiq Hidayanto Tjang Daniel Chandra Toto Nusantara Umamy, Nury Azkiya Umardiyah, Fitri umi faizah Viving Laila Wahyu Santoso Wahyuningtiyas, Kharisma Wardhani, Indah Setyo Wasti Tampi Wasti Tampi Wulan Anindya Wardhani Yandi Raharjo, Eko Yanna Purwitaningsih Yoga Dwi Windy Kusuma Ningtyas Yoggy Febriawan Yunda Devana Tiningsih Yundari, Yundari ‘Adna, Syita Fatih

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