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All Journal Jurnal Penelitian dan Pengembangan Pendidikan Journal on Mathematics Education (JME) Journal of the Indonesian Mathematical Society AKSIOMA: Jurnal Program Studi Pendidikan Matematika International Journal of Science and Applied Science: Conference Series Journal of Mathematics and Mathematics Education (JMME) JTAM (Jurnal Teori dan Aplikasi Matematika) Journal of Educational Management and Instruction (JEMIn) Himpunan: Jurnal Ilmiah Mahasiswa Pendidikan Matematika Journal on Mathematics Education Trigonometri : Jurnal Matematika
Tri Atmojo Kusmayadi
Prodi Magister Pendidikan Matematika, Pascasarjana, FKIP – UNS
Chemistry Education Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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THE ECCENTRIC DIGRAPH OF THE CORONA OF $Cn$ WITH $Km$, $Cm$ OR $Pm$ Kuntari, Sri; Kusmayadi, Tri Atmojo
Journal of the Indonesian Mathematical Society Volume 18 Number 2 (October 2012)
Publisher : IndoMS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jims.18.2.117.113-118

Abstract

pdf abstractDOI : http://dx.doi.org/10.22342/jims.18.2.117.113-118
THE KINDS OF QUESTIONS ASKED BY NOVICE TEACHERS IN LEARNING MATHEMATICS Zahra, Labiba; Kusmayadi, Tri Atmojo; Usodo, Budi
Journal on Mathematics Education Online First
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.12.2.5267.%p

Abstract

This study described the kinds of questions asked by novice teachers during mathematics learning process in senior high school. This study used descriptive analysis. The subjects of this study were 2 novice teachers who teach mathematics in 10th grade. The result shows that the frequent questions asked by novice teacher based on the objective were compliance questions, rhetorical questions and sometimes prompting questions and probing questions. The frequent questions asked by novice teacher based on the cognitive process dimension of Revised Bloom’s Taxonomy were questions of remembering, questions of understanding, questions of applying, questions of analyzing and questions of evaluating. The novice teacher asked the routine questions which had same thinking level. The question with the highest level in thinking didn’t ask by the novice teacher. 
KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA DITINJAU DARI PERBEDAAN GENDER Lestari, Widi; Kusmayadi, Tri Atmojo; Nurhasanah, Farida
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 10, No 2 (2021)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (635.337 KB) | DOI: 10.24127/ajpm.v10i2.3661

Abstract

Salah satu tujuan pembelajaran matematika adalah agar siswa memiliki kemampuan pemecahan masalah. Penelitian ini bertujuan untuk menganalisis  kemampuan pemecahan masalah siswa ditinjau dari perbedaan gender. Metode penelitian menggunakan penelitian kualitatif. Subjek pada penelitian ini adalah kelas XI TLM A SMK Maarif NU 2 Ajibarang Kab Banyumas. Penentuan sampel menggunakan teknik purposive sampling yaitu dengan pemberian soal pada seluruh siswa kelas XI TLM A. Kemudian diambil 8 siswa sebagai sampel karena memenuhi sesuai indikator  kemampuan pemecahan masalah matematika. Indikator kemampuan pemecahan masalah matematika yang diambil adalah memahami masalah, melaksanakan rencana, merencanakan penyelesaian dan memeriksa proses dan hasil. Hasil penelitian menunjukan bahwa pada tingkat memahami masalah, siswa laki-laki lebih baik dari pada perempuan sehingga siswa laki-laki mampu mencapai tingkat memahami masalah dengan baik sehingga mampu menyebutkan apa yang diketahui dan ditanyakan pada soal dengan jelas. Siswa pada tingkat melaksanakan rencana, Siswa perempuan dan laki-laki pada tingkat ini sudah dapat dikatakan mampu mencapai dengan baik karena terbukti pada jawaban siswa yang menunjukkan bahwa siswa mengaplikasikan apa yang telah guru ajarkan. Siswa pada tingkat merencanakan penyelesaian siswa siswa laki-laki dan perempuan belum mampu menyimpulkan sesuatu yang ada menurut hasil yang telah diketahui maka belum mampu mencapai tingkat merencanakan penyelesaian. Siswa pada tingkat memeriksa proses dan hasil, siswa perempuan lebih mampu mencapai tingkat memeriksa proses dan hasil terbukti dengan ketelitian yang ada pada jawaban siswa. Siswa laki-laki kurang teliti saat menghitung bilangan pada matriks pengurangan.
WHAT ARE THE TYPE OF LEARNING MEDIA INNOVATION NEEDED TO SUPPORT DISTANCE LEARNING? Hendriyanto, Agus; Kusmayadi, Tri Atmojo; Fitriana, Laila
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 10, No 2 (2021)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.473 KB) | DOI: 10.24127/ajpm.v10i2.3600

Abstract

This exploratory qualitative article with an inductive approach aims to analyze the needs of students of the mathematics education study program at one of the leading universities in Surakarta City regarding learning media that can facilitate the implementation of distance learning during the Coronavirus pandemic. Data were obtained through distributing questionnaires using Google Form to 63 students who had taken the analytic geometry course at the beginning of the Coronavirus pandemic, interviews with 2 lecturers, and 3 students selected through snowball sampling technique. The results of the analysis showed that students need interactive audio-visual teaching materials that can be accessed easily without any internet network constraints. It is evidenced by the results of the survey which show that 70% of students need audio-video-based learning media. The results of this study become the basis for developing learning media that supports the implementation of distance learning
Students’ thinking process in solving Pythagoras problems: Piaget’s theory in adversity quotient Putri, Saskia Rizkiana; Fitriana, Laila; Kusmayadi, Tri Atmojo
Journal of Educational Management and Instruction (JEMIN) Vol. 4 No. 2 (2024): December 2024
Publisher : UIN Raden Mas Said Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22515/jemin.v4i2.9692

Abstract

Mathematics involves abstract concepts that require more than memorization; it demands a deep-thinking process for true understanding. This study aims to analyze and describe the thinking processes of students in solving problems related to the Pythagorean theorem, using Jean Piaget's theory in the context of Adversity Quotient (AQ). The research design is qualitative, employing a descriptive approach. The participants were 32 eighth-grade students from SMP Negeri 2 Ngawi, East Java province, Indonesia in the 2022/2023 academic year, categorized into three AQ groups: quitters, campers, and climbers. Data collection methods included the Adversity Response Profile (ARP) questionnaire, think-aloud tests, and interviews. The data were analyzed following Miles and Huberman’s model, which involves data reduction, presentation, and conclusion drawing. The results indicate: (1) Quitters displayed both assimilation and accommodation in understanding and planning problem-solving strategies, but relied on assimilation during problem-solving and review; (2) Campers primarily engaged in assimilation throughout understanding, planning, solving, and reviewing; (3) Climbers used assimilation for understanding, planning, and reviewing, but employed both assimilation and accommodation during problem-solving execution. These findings suggest that students' AQ levels influence their cognitive processes in mathematics problem-solving, with higher AQ individuals demonstrating greater flexibility in their thinking. This has implications for educators seeking to tailor instructional approaches to students' adversity responses, enhancing both cognitive development and resilience in learning.
Students’ Mathematical Generalization in Solving Numeracy Problems Naraswari, Titania Putri; Kusmayadi, Tri Atmojo; Fitriana, Laila
Jurnal Penelitian dan Pengembangan Pendidikan Vol. 7 No. 3 (2023): October
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jppp.v7i3.66888

Abstract

Generalization is an important component of mathematical activity and has received increasing attention in school mathematics at all levels. This research aims to analyze junior high school students' mathematical generalization abilities in number pattern material. This research is descriptive research with a qualitative approach. The subjects of this research were 28 junior high school students in the even semester. The students consisted of 12 male students and 16 female students. The data collection method used is the test method. Data analysis in this research was carried out through the stages of reduction, presentation and drawing conclusions on the data obtained. Based on the results of data analysis, it shows that the mathematical generalization ability of junior high school students in number patterns was obtained: (1) 8 students (28%) had high mathematical generalization ability, (2) 15 students (54%) had medium ability, and (3) 5 students ( 18%) have low ability. These findings show that the majority of students have good mathematical generalization abilities, but there are also those who still need further assistance in improving their abilities.
Implementasi Algoritma C5.0 pada Penilaian Kinerja Mitra BPS Kota Salatiga Fatmawati, Ulya; Winarno, Bowo; Kusmayadi, Tri Atmojo
Himpunan: Jurnal Ilmiah Mahasiswa Pendidikan Matematika Vol 3, No 1 (2023): Himpunan: Jurnal Ilmiah Mahasiswa Pendidikan Matematika
Publisher : Universitas Indraprasta PGRI

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

Abstract

Mitra dari lembaga pemerintah yaitu Badan Pusat Statistik (BPS) Kota Salatiga harus mengedepankan pelayanan yang maksimal kepada masyarakat, karena mitra BPS Kota Salatiga ikut terjun langsung dalam pelayanan kepada masyarakat terutama dalam hal pengambilan data di lapangan. Dengan adanya peran penting tersebut diperlukan pengelolaan mitra yang baik. Kinerja mitra perlu diukur untuk menentukan apakah profesionalisme mitra telah tercapai dengan maksimal. Penilaian kinerja diperlukan untuk keperluan yang membutuhkan seleksi yang memungkinkan mitra yang telah mengikuti kegiatan di BPS mendaftar kembali di kegiatan BPS selanjutnya. Algoritma C5.0 adalah salah satu algoritma pohon keputusan yang dapat membantu untuk menentukan mitra yang layak direkomendasikan. Oleh karena itu diimplementasikan Algoritma C5.0 dengan menggunakan aplikasi perograman RStudio pada penelitian ini. Dataset penilaian mitra menggunakan atribut Kualitas Kerja, Kuantitas Kerja, Kepemimpinan, Tanggung Jawab, dan Kerjasama Tim. Hasil penelitian menunjukkan bahwa algoritma C5.0 mampu menentukan data mitra layak direkomendasikan sebesar 94,33%.
Transformation geometry in eleventh grade using digital manipulative batik activities Sahara, Sani; Dolk, Maarten; Hendriyanto, Agus; Kusmayadi, Tri Atmojo; Fitriana, Laila
Journal on Mathematics Education Vol. 15 No. 1 (2024): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.v15i1.pp55-78

Abstract

Learning Transformation Geometry (TG) needs a more informal approach to concern situational problems. This study aims to develop actionable knowledge of TG in the form of design related to context and yet general enough to use digital manipulative activities in new situations. We propose such knowledge in the form of conjectured Local Instructional Theory (LIT) in the framework of design research methodological framework. The designed learning activities were based on Realistic Mathematics Education (RME) principles and used batik as the context and van Hiele’s mode of geometric thought. In addition, the CorelDraw software is used as a tool to transform batik-making activities into a digital manipulative environment. The design consists of a pre-assessment and four learning activities. The data were analyzed retrospectively in accordance with the HLT. The analysis of the data described above and the justification of the processes during the teaching experiment indicate a compelling trajectory for students learning transformation geometry for this specific context and the prospect for future studies.
The Ability Of Mathematical Representation On Junior High School Students In Rectangular And Triangle Based On Gender Azizah, Annisa Nur; Kusmayadi, Tri Atmojo; Fitriana, Laila; Nataliliana, Claireza; Hermansyah, Beny
Trigonometri: Jurnal Matematika Vol. 1 No. 1 (2024): Edisi Januari
Publisher : Lppm Universitas Nurul Hud

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/trigonometri.v1i1.3258

Abstract

The ability of representation mathematical is an ability to express or model the mathematical idea into other forms such as words, pictures, and symbols. A study on the ability of mathematics representation is required for the students; therefore, they can express their idea easily by interpreting their thought relating to mathematics problems. This research is a descriptive qualitative method which aimed to find out the description of student' ability of the mathematical representation on rectangular and triangle based on gender. The subjects of this research are 26 students of eight grades consisted of 11 female students and 15 male students. The technique of collecting data was done by using the test method and interview. The test instrument used is 6 essay tests. The data analysis technique is by analyzing the results of the test data. The research result showed that students' mathematical representation ability are categorized well enough. From the results of the data obtained, it can be concluded that the ability of mathematical representation for male students is evenly distributed because there are results for each category. As for the female students, the average has a high mathematical representation ability
Validity, Practicality, and Effectiveness of Ludo Cartesius Learning Media to Improve Understanding of Mathematical Concepts Sumadi, Iman Putra; Kusmayadi, Tri Atmojo; Fitriana, Laila
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 6, No 3 (2022): July
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v6i3.8477

Abstract

Abstract mathematics learning requires media in outlining the material so that it can be well received by students. Media can help students understand and recall explanations from the teacher and test students' understanding more deeply. This research was conducted with the aim of knowing the validity of Ludo Cartesius' learning media to improve understanding of mathematical concepts in class VIII students at junior high school. This research will apply development research design with ADDIE approach developed by Robert Maribe Brach. The ADDIE stages include analysis, design, development, implementation, and evaluation. The Population in this study were all eighth grade students at junior high school. The research sample was 27 students who were taken randomly using cluster random sampling technique. The instruments used include media expert assessment sheets, material expert assessments, student and teacher response questionnaires, as well as pretest and posttest understanding of mathematical concepts. The average value of media experts from the three validators of Dokar's media is 95.61. The average value of media experts from the three validators of Dokar's media is 92.36. The results showed that the Dokar media was categorized as "very valid" in terms of media experts and material experts and this media was suitable for use in class VIII students at junior high school. Dokar media is classified as practical media based on the average percentage of student and teacher responses, namely 86.23% and 85.83%. Dokar media is an effective medium based on the t-test (paired sample t-test) p value (0.000)<α (0.05) so that the posttest score is better than the pretest.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Aziz Abdul Ghofur Abdul Razak Adeyanto, Rizki Agus Darmawan Ambar Nurhayati Anggrahini Anggrahini Anugrah, Terri Murizki Ardiantoro, Gigih Arianti Puspita Dewi Ariastutik, Endah Arinta Rara Kirana Asip Cakra Buana, Asip Cakra Atik Fitriya N author Ari Suningsih Azizah, Annisa Nur Budi Usodo Desi Gita Andriani Dewi Kurniasari, Dewi Dian N Safitri Dian Panji Wicaksono Dwi A, Yuridis Madyarsa Dwi Yuni Pramugarini Eli Widoyo Retno Endah Wulantina, Endah Farah Umami Farida Nurhasanah Fatmawati, Ulya Fauzi Mulyatna Ferri Ardianzah Fida Rahmantika Hadi, Fida Rahmantika Fina Hanifa Hidayati Fitriana, Laila Frasetyana, Anita Diah Gatut Iswahyudi Habib Ratu Perwira Negara Hafidh Jauhari Hendriyanto, Agus Hermansyah, Beny Hidayah, Irma Rachmah Hidayat, Edisut Taufik Iim Marfuah Ika Wulandari Imam Sujadi Indra Kurniawan Irma Ayuwanti Irnistisia, Firna Juitaning Mustika Juliana Nasution Khoiriah, Silfiatul KOMARUDIN Labiba Zahra, Labiba Linda Sunarya Lingga Nico Pradana Maarten Dolk, Maarten Mardiyana Mardiyana MIFTACHUL ANAS Mishbahul Huda, Mishbahul Muhtarom Nanndo Yannuansa, Nanndo Naraswari, Titania Putri Nataliliana, Claireza Nelly Indriastuti P Nina Nurmasari Nindia Elisie Anggraini Nirawati, Lia Septy Nunung Juwariah, Nunung Nur Anida Laila Nurmalitasari Nurmalitasari Nurul Hidayati Shaliha, Nurul Hidayati Ony Syaiful Rizal, Ony Syaiful Puput Suriyah Putri, Saskia Rizkiana Rahayu Sri W Retno Sari Riyadi Riyadi Rosa Rosdiana Retno H Sani Sahara Sherly Mayfana Panglipur Yekti Sigit Rimbatmojo, Sigit Sri Indayani, Sri Sri Kuntari Sukowiyono Sukowiyono Sumadi, Iman Putra Supriyatin Supriyatin Susmono Susmono Suyono Suyono Tanti Listiani, Tanti Tri Yuliana Tunjung Genarsih, Tunjung Ummi Rosyidah, Ummi Wahyu Astuti Budi Wahyu Nofiansyah, Wahyu Wahyumiarti Wahyumiarti, Wahyumiarti Widi Lestari Winarno, Bowo Wulancar, Elis Dyah Yekti Putri Kusumaningtyas Zara Mertiana RZ