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Dadan Dasari

Univeritas Pendidikan Indonesia

Author-ID : 2838049

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering 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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Students’ Understanding of Algebraic Factorization Problems based on Their Meaning of The Equals Sign Lia Ardiansari; Didi Suryadi; Dadan Dasari
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol 5, No 4 (2022): VOLUME 5 NUMBER 4, DECEMBER 2022
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v5i4.14483

This paper reports an investigation of students' understanding of the concept of factorization in algebraic forms learned in secondary school. A total of 31 grade 8th junior high school students were selected by purposive sampling technique as respondents in this case study research. The case study approach is considered in accordance with the objectives of this study, namely obtaining in-depth knowledge of student problems, knowing the causes of these problems, and efforts that can be made to help overcome them. Methods of collecting data using written tests, interviews, and documentation. Data analysis techniques include data reduction, data presentation, and drawing conclusions. The results showed that there was a misunderstanding of students' concepts about the concept of factorization in algebraic forms so that they experienced difficulties in "algebraic manipulation". One of the causes of these difficulties is the lack of students' understanding of the equals sign as a sign of equality. The principle of mathematical equivalence serves as the main link between arithmetic and algebra. The operation transformation and the meaning of the equals sign in arithmetic as equality can underlie "algebraic manipulation".

ANALISIS HAMBATAN BELAJAR (LEARNING OBSTACLE) SISWA SMP PADA MATERI PELUANG Rizqi Dwi Maharani; Dadan Dasari; Elah Nurlaelah
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 11, No 4 (2022)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Konsep peluang merupakan konsep dasar yang perlu dipahami oleh siswa karena pemahaman konsep tersebut akan terus digunakan pada jenjang selanjutnya. Namun, masih banyak siswa yang mengalami hambatan dalam mempelajari topik tersebut. Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis hambatan belajar (learning obstacle) siswa pada materi konsep peluang. Metode yang digunakan adalah metode penelitian kualitatif dengan pendekatan fenomenologi yang melibatkan 22 siswa SMP kelas IX dan 24 siswa SMA kelas X di dua sekolah di Kabupaten Wonosobo, Jawa Tengah, Indonesia. Pengumpulan data menggunakan triangulasi dengan pemberian tes diagnostik, wawancara guru dan siswa, serta analisis buku ajar yang digunakan (analisis dokumen). Hasil penelitian menunjukkan bahwa siswa mengalami hambatan belajar dimana kurangnya ketertarikan siswa terhadap materi konsep peluang, ketidaksiapan siswa berkaitan dengan hal teknis yang bersifat kunci dari proses pembelajaran seperti ruang sampel dan titik sampel, dan siswa masih kesulitan dalam menguasai konsep prasyarat himpunan, yaitu kesulitan memahami dalam mendaftarkan anggota suatu himpunan (ontogenic obstacle). Hambatan lain yang dialami siswa yaitu, banyaknya miskonsepsi siswa pada penyelesaian permasalahan terkait konsep peluang (epistemological obstacle) serta alur pembelajaran yang belum sesuai dengan kebutuhan dan karakteristik siswa (didactical obstacle). Hambatan-hambatan tersebut harus dipertimbangkan dalam pengembangan desain didaktik yang lebih optimal untuk mencapai tujuan pembelajaran yang diharapkan. The concept of probability is a basic concept that students need to understand because this concept will continue to be used at the next level. However, many students still have obstacles in learning this topic. This study aims to identify and analyze student learning obstacles in the concept of probability. The method used is qualitative research method with phenomenological approach involving twenty two 9th grade students and twenty four 10th grade students in two school in Wonosobo Regency, Central Java, Indonesia. Data collection uses triangulation by giving diagnostic tests, teacher and student interviews, and analysis of the textbooks used (document analysis). The results showed that students have learning obstacle which there was a lack of student interest in the concept of probability, students' unpreparedness related to key technical matters of the learning process such as sample space and sample points, and students still have difficulty mastering the concept of sets, they have difficulty writing members of a sets (ontogenic obstacle). Another obstacle is the number of misconceptions in solving problems of probability (epistemological obstacle) and the learning trajectory that is not in accordance with the needs and characteristics of students (didactical obstacle). These learning obstacles must be considered in the development of a more optimal didactical design to achieve the expected learning objectives.

The Use of Learning Aids for Dyscalculia: Systematic Literature Review Husna Fatwana; Dadan Dasari; Dadang Juandi
AL-ISHLAH: Jurnal Pendidikan Vol 15, No 1 (2023): AL-ISHLAH: Jurnal Pendidikan
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v15i1.2633

The aim of this research is to examine appropriate learning aids for dyscalculia children. Systematic literature review became the method in this study. This article reviews 13 articles involving more than 4939 subjects and respondents. We reviewed articles published from 2010 to 2021 from the Sage, SpringerLink, TaylorFrancis, and Wiley Online Library databases. All articles were classified by year, research approach, research objectives and strategies offered for dyscalculia children. The selection of articles found the use of manual tools and the use of technological aids. The results of the review analysis showed that learning with the help of technology had a greater impact on the learning outcomes of dyscalculia students.

ANALISIS BIBLIOMETRIK: FOKUS PENELITIAN CRITICAL THINKING DALAM PEMBELAJARAN MATEMATIKA (2017 – 2022) Ilham Muhammad; Dika Faiz Himmawan; Syifa Mardliyah; Dadan Dasari
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 6, No 1 (2023): Januari
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i1.14759

Critical thinking can be formed in several ways, one of which is through the process of learning mathematics. This study aims to determine trends and research focus related to critical thinking in mathematics learning. A total of 327 data were obtained from database dimensions. VOSviewer software is used to display visualizations based on bibliographic pairs and events with keywords by the author. Researchers use qualitative research methods. The analysis technique used is descriptive bibliometric analysis and bibliometric visualization method. The results of the study show that the countries of Indonesia and the United States, the Indonesian University of Education and Padang State University, the "journal of physics conference series" and documents (Mutakinati et al., 2018) have been the most influential on critical thinking in learning mathematics in the last five years . The research focus is divided into four of them, namely: 1) STEM approach; 2) Learning with Problem-based learning; 3) Critical thinking in higher education; 4) learning outcomes and creative thinking. STEM is not directly related to geometry material, and problem-based learning is also not directly connected to independent learning.

Bibliometric Analysis: Sofware Usage Trends GeoGebra in Mathematics Learning From 2017 - 2022 Rahmat Kusharyadi; Saffanah Pertiwi; Erika Yohanna Seventina Siahaan; Dadan Dasari
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 11, No 1: January 2023
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v11i1.6786

The use of GeoGebra Software in mathematics learning is the application of ICT-based learning that can be done in schools. This is done to make learning interactive. This study aims to determine and analyze trends in article writing with the theme of using GeoGebra software in mathematics learning between 2017-2022, articles, countries of origin, authors, and institutions that have the most citations and link strengths using databases. dimensions. The method used is bibliometric analysis. The sample used is 180 articles that were searched using the database dimensions according to the specified keywords. The data is stored in CSV format to be used in the VOSviewer software to obtain a mapping in search of publication trends. The trend of writing articles with the theme of using GeoGebra software experienced a significant increase between 2017 and 2021 by 279%. Analysis based on software VOSviewer has 5 themes related to the use of GeoGebra software in mathematics learning, namely: “control group”¸“concept”, “medium”, “subject”, “analysis”, and “ article” which is still rarely researched and is a theme in the renewal of research. This theme is used as reference material for further research.

Investigasi Desain Pengajaran untuk Penalaran Matematis Novita Fatmiyati; Freddy Prasetyo; Dela Ambarwati; Dadan Dasari
Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol 11, No 1 (2023): Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam
Publisher : Prodi Pendidikan Matematika FTIK IAIN Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/jpmipa.v11i1.3428

Abstract:Learning mathematics requires students to have various abilities and skills, including mathematical reasoning ability. This study aims to identify any matters related to teaching design in mathematics education toward students' mathematical reasoning abilities. The method used was Systematic Literature Review (SLR) and the collection of literature used as research subjects were carried out by searching the Scopus database and using inclusion criteria in the form of (1) written in English, (2) published in the last ten years (2013-2022), and (3) indexed by Scopus. There are 24 articles identified that meet the inclusion criteria and were analyzed based on teaching design categorization by van der Akker that has been modified by Lithner. The results found that there are learning designs that affect various mathematical reasoning abilities, namely the Zone of Proximal Development (ZPD), Realistic Mathematics Education (RME), and Theory of Didactical Situation (TDS), where various claims in the form of interventions such as learning models, learning instructions and teaching media or materials, which have been seen to effectively improve students' mathematical reasoning abilities. Abstrak:Pembelajaran matematika menuntut kemampuan dan keterampilan siswa, salah satunya kemampuan penalaran matematika. Penelitian ini bertujuan mengindentifikasi desain pembelajaran matematika terkait kemampuan penalaran matematis siswa. Metode yang digunakan yaitu Systematic Literature Review (SLR) dengan mengidentifikasi database Scopusdengan kriteria inklusi berupa (1) ditulis dalam Bahasa Inggris, (2) diterbitkan selama sepuluh tahun terakhir (2013-2022), dan (3) terindeks Scopus. Terdapat 24 artikel yang teridentifikasi memenuhi kriteria tersebut yang selanjutnya dianalisis berdasarkan kategorisasi desain pengajaran menurut van der Akker yang dimodifikasi oleh Lithner. Hasil penelitian ini menemukan terdapat desain pengajaran yang mempengaruhi berbagai kemampuan penalaran matematis, yaitu Zone of Proximal Development (ZPD), Realistic Mathematics Education (RME), dan Theory of Didactical Situation (TDS), dengan berbagai klaim diantaranya intervensi model pembelajaran, instruksi pembelajaran, dan media atau bahan ajar, yang secara efektif meningkatkan kemampuan penalaran matematika siswa.

Students' Computational Thinking Ability in Calculating an Area Using The Limit of Riemann Sum Approach Enjun Junaeti; Tatang Herman; Nanang Priatna; Dadan Dasari; Dadang Juandi
Mosharafa: Jurnal Pendidikan Matematika Vol 12, No 2 (2023)
Publisher : Institut Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v12i2.2480

Melatih kemampuan berpikir komputasional mahasiswa membuka peluang untuk lebih menguasi konsep, menganalisis permasalahan, dan membangun solusi dunia nyata. Tujuan penelitian adalah menganalisis kemampuan berpikir komputational mahasiswa Pendidikan Ilmu Komputer berupa kemampuan abstraksi, dekomposisi, berpikir algoritmik, dan generalisasi. Metode penelitian yaitu studi kasus dengan pendekatan kualitatif deskriptif. Pembelajaran dilakukan kepada 40 mahasiswa semester 1 (satu) secara kolaboratif dalam penyelesaian masalah luas daerah dengan pendekatan limit. Pada akhir pembelajaran mahasiswa diberikan soal tes kemampuan berpikir komputasional mahasiswa. Jawaban tes setiap mahasiswa dianalisis dari segi sisi fungsi mental yang muncul untuk mengetahui karakteristik akusisi kemampuan penyelesaian masalah. Pada penelitian yang telah dilakukan mahasiswa dikategorikan dalam kelompok novice, advanced beginner, competent, proficient, dan expert berdasarkan karakter penyelesaian masalahnya. Pada umumnya setiap mahasiswa telah memiliki kemampuan berpikir algoritmik. Sebagian besar mahasiswa (kecuali kategori novice) juga telah mampu mengabstraksi dan mendekomposisi permasalahan. Sedangkan kemampuan pengenalan pola baru terlihat pada mahasiswa dengan kategori competent, proficient, dan expert. Training students' computational thinking ability provides opportunities to comprehend concepts, analyse problems, and build solutions in real-life contexts. The purpose of the study was to analyse the computational thinking abilities of Computer Science Education students, i.e., abstraction, decomposition, algorithmic thinking, and generalization abilities. The research method used was a case study with a descriptive qualitative approach. The learning process was conducted by 40 students for semester 1 (one) semester collaboratively in solving area problems using the limit approach. At the end of the lesson, the students were tested through students' computational thinking abilities. Each student's answers were analyzed in terms of the mental functions that emerged to determine the characteristics of the acquisition of problem-solving ability. In this study, the students were categorized into groups of novices, advanced beginner, competent, professional, and expert based on the natures of their problem solving. In general, every student had the ability to think algorithmically. Most students (except the novice category) were able to abstract and unravel the problems. Meanwhile, the ability to recognize new patterns were demonstrated by the students in the competent, professional, and expert categories.

ANALISIS PENGALAMAN PENGEMBANGAN DIRI GURU MATEMATIKA TERHADAP PEMBELAJARAN YANG BERDIFERENSIASI DAN MENDORONG BERPIKIR KRITIS Pujia Siti Balkist; Dadan Dasari; Putri Fitriasari
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 12, No 1 (2023)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Tujuan penelitian ini adalah untuk menganalisis signifikansi factor-faktor pendukung variable pengalaman guru, pembelajaran berdiferensiasi dan pembelajaran yang mendorong kemampuan berpikir kritis pada kurikulum merdeka . Metode penelitian yang digunakan adalah metode kuantitatif dimana pengumpulan data secara survey pada sampel yang dipilih secara purposive, dan pengolahan data dengan analisis klaster serta Structural Equation Model (SEM). Hasil penelitian menunjukkan seluruh factor-faktor pendukung masing-masing variable signifikan dan hanya 3 dari 18 faktor keseluruhan yang memiliki nilai loading factor lemah (<0,3). Analisis signifikansi persamaan structural dari variable pengalaman guru ke pembelajaran berdiferensiasi diperoleh hasil signifikan, variable pengalaman guru ke pembelajaran mendorong berpikir kritis tidak signifikan dan variable pembelajaran berdiferensiasi ke pembelajaran mendorong berpikir kritis signifikan. Adapun efek tidak langsung dari variable pengalaman guru menuju pembelajaran berdiferensiasi kemudian menuju pembelajaran mendorong kemampuan berpikir kritis signifikan. Model yang dibuat juga cocok untuk digunakan menganalisis variable-variabel dalam penelitian ini.

Numeracy-Ability, Characteristics of Pupils in Solving the Minimum Competency Assessment Lukman Hakim Muhaimin; Dadan Dasari; Yaya Sukjaya Kusumah
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 12, No 1 (2023)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Mathematics is a subject closely related to everyday problems; the low PISA scores from all fields have made the government make breakthroughs to improve literacy and numeracy skills through the AKM. The purpose of this study was to analyze the characteristics of numeracy skills in solving AKM problems. The type of research used is qualitative with a phenomenological design. The subjects of this study used one mathematics teacher and three eighth-grade students of SMP Muhammadiyah Al Kautsar PK Kartasura Sukoharjo for the 2021/2022 academic year. Using a purposive sampling technique in taking the subject, this study used three students of class VIII as the main subject of the study. In addition to the researcher as the key instrument, the researcher also used AKM questions, interview texts, and observation texts for data acquisition. The validity used is the triangulation of sources and techniques. The inductive technique is the process of data analysis used in this research. The results of the study stated that students' numeracy skills were not perfect, indicator three on giving conclusions was not given for all subjects used. Habituation in solving AKM problems in classroom learning is needed to train students' numeracy skills.

The effect of GeoGebra android on increasing mathematical understanding ability based on gender Rizki Dwi Siswanto; Dadan Dasari; Agus Hendriyanto; Lukman Hakim Muhaimin; Rahmat Kusharyadi; Sani Sahara
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 11 No 1 (2023)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v11i1.14462

This study aims to describe the increase of students' mathematical understanding ability in learning the two-variable linear equation system (SPLDV) and the two-variable linear inequality system (SPTLDV) with Android GeoGebra media reviewed by gender. This experimental quasi research is one group pretest postest design. The sample in this study was a class XI of 32 students with Purposive Random Sampling techniques. Data collection in this study uses an instrument for a mathematical understanding ability test in the form of a description. The results of the study can be concluded in the learning of Android GeoGebra, the mathematical understanding of male students is significantly different from the mathematical understanding of female students. It means that in learning the Android GeoGebra Improvement of the Mathematical Understanding Ability of Male Students is greater than female students. Thus it can be concluded that in the learning of Android GeoGebra, an increase in the mathematical understanding of male students is better than female students.

Co-Authors Aan Hasanah Abdurrahman do muhamad Naser Abdurrahman Do. Muhamad Naser AHMAD LUTFI Ahmad Lutfi Ahmad Mukhibin Alliseu Umiyati Ambarwati, Dela Arili, Neza Zakiya Aswin Aswin Atika Defita Sari Bahar, Afipa Amalia bambang avip Priatna Budi Rianto Christina Monika Christina Monika Samosir Dadang Juandi Dadang Juandi Dadang Junadi Darhim Darhim Dela Ambarwati Desy Lusiyana, Desy Dewi, Niken Shofiana Didi Suryadi Didi Suryadi Didi Suryadi Didi Suryadi Didi Suryadi Dika Faiz Himmawan Drajat, Widi Rahmawati Edi Supriyadi Eka Khairani Hasibuan Elah Nurlaelah Elah Nurlaelah Elsa Komala Elsa Komala, Elsa Enjun Junaeti Erika Yohanna Seventina Siahaan Fadhil Zil Ikram Fatmiyati, Novita Febrianti, Tri Sedya Fitri, Rahmia Mulya Fitria Maghfiroh, Fitria Fitria, Nida Fitriani agustina Fitriasari, Putri Fitriyah, Yuni Freddy Prasetyo Freddy Prasetyo, Freddy Gita Rani Putri Mangiri Gita Safitri Gunadi, Farid Hafilah, Putri Harahap, Maulana Al Aziz Hendriyanto, Agus Hidayat, Azhar Majid Himmawan, Dika Faiz Husna Fatwana Ilham Muhammad Ilham Muhammad Inayah, Clara fadhilah Inayah, Sarah Jarnawi Afgani Dahlan Jozua Sabandar Junaeti, Enjun Khofifa Romaito Siregar Laia, Harun Onesimus Lethulur, Nelma Dortje Lia Ardiansari Lina Nurhayati Lomri, Yani Astika Lubis, Asep Ridwan Lucky Heriyanti Jufri, Lucky Heriyanti Lukman hakim muhaimin Lukman Lukman Lutfi, Jasmine Salsabila Magdalena Wangge Mansyur, Azizul Jabbar Marchy, Febrinna Mardliyah, Syifa Marhami Marhami Marhami, Marhami Maria TSN Ma’ulfi Kharis Abadi Mitrayana Mitrayana Muhammad Fajar Anugrah Mulia Putra Nanang Priatna Nar Herrhyanto Naser, Abdurrahman Do. Muhamad ningrum, yunia jumita Nisa Azzahra Novita Fatmiyati Nurdiani, Nunung Nurdiani, Nunung Nurhayati, Hanifah Nurhayati, Lina Palupi Sri Wijayanti, Palupi Sri Panjaitan, M. Azhari Patrisius Afrisno Udil, Patrisius Afrisno Pujia Siti Balkist Putri, Mei Radia Rahmat Fitra Rahmat Kusharyadi Raisya Hizkiya Syabina Ramdhan Fazrianto Suwarman Rani Sugiarni Rayinda Khaerul Wiladah Bahrun Rianto, Budi Ridho, Muhamat Hidayatul Riki Andriatna Rita Novita Ritmayanti, Indah Rahmania Rizqi Dwi Maharani Rusyid, Husnul Khatimah Saffanah Pertiwi Safitri, Gina safitri, gita Sahara, Sani Samosir, Christina Monika Sani Sahara Saputra, Andari Saputri, Veni Sari, Atika Defita Sari, Merisa Ammelia Savitri, Gina Scristia, Scristia sholikhakh, Rizqi Amaliyakh Siahaan, Erika Yohanna Seventina Silitonga, R. H. Yanti Simanjuntak, Sinitta Simbolon, Asep Siswanto, Rizki Dwi Siti Fatimah Solehudin Solehudin Sri Hastuti Noer Sufyani Prabawanto, Sufyani Surya Kurniawan Swasti Maharani Syafdi Maizora Syaiful Syifa Mardliyah Tarmudi, Tarmudi Tatang Herman, Tatang Tri Nova Hasti Yunianta Turmudi Tuti Hartati Wahab A, Abdul Wangge, Magdalena Widyastuti Widyastuti Yani Astika Lomri Yaya S Kusumah Yaya S. Kusumah Yaya Sukjaya Kusumah

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