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Marcellinus Andy Rudhito

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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Analisis Aktivitas Belajar Siswa Kelas XI SMA dalam Pembelajaran Matematika Berbantuan Geogebra antara Pendekatan Laboratorium dan Pendekatan Klasikal Rudhito, Marcellinus Andy; Iman Santoso, Fransiskus Gatot; Kristanto, Vigih Hery
Widya Warta No. 01 Tahun XXXVIII / Januari 2014
Publisher : Universitas Katolik Widya Mandala Surabaya Kampus Kota Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.958 KB)

This research aims to find whether or not there is any difference of studentsâ€™ study activity in GoeGebra assisted mathematics learning with laboratory approach and that with classical approach on the second-year-students of senior high school. The research is quantitative in nature. It was carried out at SMAN 1 and SMAN 5 Madiun in the semester two of the academic year 2012/2013. The data were collected using non-test method. It was in the form of observation sheets of studentsâ€™ activity. The sample was obtained applying cluster random sampling technique. The statistical analysis of the data showed that studentsâ€™ study activity in GoeGebra assisted mathematics learning with laboratory approach was better than thatwith classical approach.

USING EXELSA MOODLE TO DEVELOP MATHEMATICS TEACHING SKILLS AND SPIRIT IN THE MICRO TEACHING COURSE Rudhito, Marcellinus Andy
International Journal of Indonesian Education and Teaching (IJIET) Vol 2, No 2 (2018): July 2018
Publisher : Sanata Dharma University Yogyakarta

The purpose of learning implementation with the development of digital learning resources in the Micro Teaching Course is to (i) design and implement active and constructive learning dynamics in an effort to develop students' Ignatian Pedagogy-based teaching skills by utilizing Learning Management System Exelsa Moodle; (ii) produce teaching design and teaching videos that students can use in their efforts to develop their teaching skills. In general, the implementation of learning is about 90% in accordance with the plan. The expected final achievement is generally achieved, namely that students have good skills in managing mathematics learning in the peer teaching (Competence), have high spirit in developing teaching ability (Conscience) and have high concern in helping their friends in an effort to develop their teaching skills (Compassion).The use of Exelsa Moodle is also quite optimal, in which the course design and explanations and materials used in the lectures can be well communicated. Videos from short film projects with mathematical themes can also be produced properly and have been uploaded on Youtube. In this lecture the videos recording their teaching practice still tend to be a collection of learning and student labs concerned. These videos can be utilized to serve as examples in the discussion of teaching skills, whether from material mastery, delivery or class management.Â DOI: https://doi.org/10.24071/ijiet.2018.020210

ANALISIS KEMAMPUAN DAN KESULITAN SISWA SMP DALAM MENYELESAIKAN SOAL BILANGAN MODEL TIMSS Prasetyo, Dominikus Arif Budi; Rudhito, Marcellinus Andy
Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Vol 21, No 2 (2016): Jurnal Pengajaran MIPA - Oktober 2016
Publisher : Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18269/jpmipa.v21i2.819

Numbers is an important concept in mathematics and one of the tested materials in TIMSSâs study. One of the efforts to increase studentsâ ability in solving TIMSS numbers questions is by developing TIMSS model-numbers questions. This current research investigated studentsâ ability and difficulties in solving TIMSS model-numbers questions, with 31 students in one of junior high schools in Central Java as a sample. Studentsâ ability in solving TIMSS model-numbers questions was measured by test with 32 multiple choice questions, whereas studentsâ difficulties when solving those questions were explored by studentsâ comment sheet. Mean test score indicates that students ability for all content and cognitive domains was moderate. Difficulties experienced by students in solving TIMSS model-numbers questions were misunderstood the meaning of the questions or error in changing fractional forms and making calculations. The results indicated that in addition to having no deep understanding of numbers, studentsâ opportunity to train their ability in solving TIMSS model-numbers questions was still insufficient.

Matriks atas Aljabar Max-Plus Interval Rudhito, Marcellinus Andy; Wahyuni, Sri; Suparwanto, Ari; Susilo, Frans
Jurnal Natur Indonesia Vol 13, No 2 (2011)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

This paper aims to discuss the matrix algebra over interval max-plus algebra (interval matrix) and a method tosimplify the computation of the operation of them. This matrix algebra is an extension of matrix algebra over max-plus algebra and can be used to discuss the matrix algebra over fuzzy number max-plus algebra via its alpha-cut.The finding shows that the set of all interval matrices together with the max-plus scalar multiplication operationand max-plus addition is a semimodule. The set of all square matrices over max-plus algebra together with aninterval of max-plus addition operation and max-plus multiplication operation is a semiring idempotent. As reasoningfor the interval matrix operations can be performed through the corresponding matrix interval, because thatsemimodule set of all interval matrices is isomorphic with semimodule the set of corresponding interval matrix,and the semiring set of all square interval matrices is isomorphic with semiring the set of the correspondingsquare interval matrix.

Pengembangan Media Pembelajaran Menggunakan Mathcitymap dalam Kemampuan Pemecahan Masalah Berbasis Etnomatematika Konteks Benteng Vredeburg Yogyakarta Gabriela Alvina Maheswari; Endah Saraswati; Marcellinus Andy Rudhito
Jurnal Pendidikan Matematika (JPM) Vol 9 No 2 (2023): Jurnal Pendidikan Matematika (JPM)
Publisher : Pendidikan Matematika, FKIP, Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jpm.v9i2.20037

Teknologi yang ada di Indonesia semakin berkembang pada abad 21 ini. MathCityMap merupakan salah satu perkembangan teknologi yang dapat membantu peserta didik dalam pembelajaran matematika. Kemampuan pemecahan masalah merupakan salah satu masalah yang ada di pembelajaran matematika. Peningkatan kemampuan pemecahan masalah siswa dengan konteks pembelajaran menggunakan MathCityMap berbasis Etnomatematika. Konteks yang diangkat pada penelitian ini adalah penggunaan MathCityMap berbasis Etnomatematika pada Benteng Vredeburg Yogyakarta. Benteng Vredeburg ini merupakan wisata yang tengah digandrungi oleh anak muda karena situasi yang ada di benteng Vredeburg Yogyakarta yang bergaya vintage dapat digunakan swafoto atau pemotretan untuk kegiatan tertentu. Penelitian ini merupakan penelitian pengembangan atau biasa disebut Research and Development (R&D). Metode yang digunakan dalam penelitian ini adalah ADDIE. Metode ADDIE terdiri dari 5 tahap yaitu Analysis, Design, Development, İmplementation, dan Evaluation. Tujuan penelitian ini adalah mengembangkan media pembelajaran dengan menggunakan MathCityMap bagi peserta didik tingkat SMP. Hasil dari penelitian ini adalah pengembangan MathCityMap dengan menggunakan konteks benteng Vredeburg yang telah diuji coba oleh teman sejawat dengan rata-rata hasil penilaian adalah 4,56 dari 5 termasuk dalam kategori sangat baik. Oleh karena itu, MathCityMap yang dikembangkan oleh peneliti dapat digunakan dalam pembelajaran matematika.

KAJIAN ETNOMATEMATIKA PADA CANDI SAMBISARI DAN IMPLEMENTASI DALAM PENGEMBANGAN BAHAN AJAR MATERI BANGUN DATAR SMP Christofer Yoga Ardinata; Disman Gulo; Marcellinus Andy Rudhito
PHI: Jurnal Pendidikan Matematika Vol 8, No 1 (2024): APRIL 2024
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/phi.v8i1.327

ABSTRAK Artikel ini mengkaji potensi pemanfaatan Candi Sambisari dalam pengembangan materi bangun datar bagi siswa Sekolah Menengah Pertama (SMP) melalui pendekatan etnomatematika. Candi Sambisari sebagai situs peninggalan sejarah memberikan peluang penting untuk mengintegrasikan matematika dengan konteks budaya dan sosialnya. Penelitian ini menerapkan pendekatan kualitatif deskriptif eksploratif dengan pengumpulan data melalui observasi, wawancara, dan dokumentasi. Hasil penelitian mengidentifikasi aktivitas dasar matematika seperti counting, measuring, locating, designing, playing, dan explaining. Selain itu juga ditemukan berbagai bangun datar seperti persegi, persegi panjang, trapesium, segitiga siku-siku, segitiga sama kaki, dan lingkaran pada struktur candi. Penelitian ini memperkaya pemahaman siswa terhadap matematika dengan menghubungkan warisan budaya lokal dan memberikan wawasan tentang sejarah dan makna candi. Hasil penelitian ini diharapkan dapat mendukung pengembangan bahan ajar yang lebih berbasis konteks dan budaya pada materi pembelajaran sekolah menengah, meningkatkan minat siswa dalam belajar matematika, dan mendorong pelestarian warisan budaya. Kata kunci :Bahan Ajar, Candi Sambisari, Etnomatematika, Materi Bangun Datar, Sekolah Menengah Pertama. ABSTRACTThis article examines the potential utilization of Sambisari Temple in the development of 2D geometry shape for Junior High School (JHS) students through an ethnomathematics approach. Sambisari Temple as a historical heritage site provides an important opportunity to integrate mathematics with its cultural and social context. This research applied an explorative descriptive qualitative approach with data collection through observation, interviews, and documentation. The results identified basic math activities such as counting, measuring, locating, designing, playing, and explaining. In addition, various flat shapes such as square, rectangle, trapezoid, right triangle, isosceles triangle, and circle were found in the temple structure. This research enriches students' understanding of mathematics by connecting local cultural heritage and providing insight into the history and meaning of temples. The results of this study are expected to support the development of more context- and culture-based teaching materials in secondary school learning materials, increase students' interest in learning mathematics, and encourage the preservation of cultural heritage. Keywords : Ethnomathematics, Junior High School, Sambisari Temple, Teaching Materials, 2D Geometry Shape.

Development of Mathematics Learning Activities Using Mathcitymap at Sindu Kusuma Edupark to Learn Contextual Problem-Solving Tyas, Azkia Martiana Winarning; Herningtyas Ayu Putri Cahyanti, Aurelia; Rudhito, Marcellinus Andy
Jurnal Pendidikan Matematika (JPM) Vol 10 No 2 (2024): Jurnal Pendidikan Matematika (JPM)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jpm.v10i2.22225

Contextual problem-solving abilities are very much needed in processes in the 21st-century era and can be done by providing meaningful experiences. This can also be called Outdoor Learning, namely involving students directly in the learning object. One application that can help learning outside the classroom is MathCityMap. This research raises the context of using ethnomathematics-based MathCityMap located at Sindu Kusuma Edupark. Sindu Kusuma Edupark is an educational tourist attraction located in Sleman, Yogyakarta. This research aims to develop students' contextual problem-solving abilities in mathematics learning using the MathCityMap application at the junior high school level. This research uses a type of development research called Research and Development (R&D). The method in this research refers to the 4D method which consists of 4 stages: definition, design, development, and dissemination. The results of this research are a series of learning activities using the MathCityMap application in the context of the Sindu Kusuma Edupark tourist attraction which colleagues have tested. The average assessment result is 80.5% with the feasible category. Based on these results, it was concluded that the MathCityMap activity developed by this researcher could be implemented in mathematics learning.

Kajian Etnomatematika dalam Budaya Merti Dusun Temanggung Kabupaten Wonosobo dan Implementasinya dalam Pembelajaran Matematika Rudhito, Marcellinus Andy; Kristanti, Rani; Syahdana, Hanifah
Postulat : Jurnal Inovasi Pendidikan Matematika Vol 5 No 1 (2024): Juli 2024
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/postulat.v5i1.7628

Indonesia mempunyai banyak sekali ragam kebudayaan. Salah satu kebudayaan yang dapat dikaji melalui etnomatematika adalah Budaya Merti dusun. Penelitian ini bertujuan untuk (1) mendeskripsikan sejarah dan filosofi Budaya Merti Dusun di Dusun Temanggung Wonosobo (2) mendeskripsikan aktivitas fundamental yang terjadi pada Budaya Merti Dusun di Dusun Temanggung Wonosobo menurut Bishop (3) Mengembangkan atau mengimplementasikan hasil kajian dalam Pembelajaran Matematika. Jenis penelitian ini merupakan penelitian kualitatif. Metode penelitian yang digunakan adalah etnografi. Subjek dari penelitian ini adalah sesepuh Dusun Temanggung. Berdasarkan aktivitas fundamental matematis menurut Bishop hasil dari penelitian ini menunjukan (1) Adanya aktivitas membilang (counting) (2) adanya aktivitas pemetaan (locating) (3) adanya aktivitas mengukur (measuring) (4) adanya aktivitas merancang (designing) (5) adanya aktivitas bermain (playing) dan (6) aktivitas menjelaskan (explaining). Hasil penelitian tersebut dapat diimplementasikan pada pembelajaran matematika.

Etnomatematika pada Pakaian Adat Ulos Batak Toba dan Implementasi dalam Rancangan Pembelajaran Matematika Jawa, Petrus Ignasius Junior; sidabalok, alfrendo; Rudhito, Marcellinus Andy
Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Vol. 7 No. 1 (2024): Sustainable Development Goal in Mathematics and Mathematics Education
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/proximal.v7i1.3204

The country of Indonesia is rich in culture where there are elements of mathematics in it. One of these cultures is Ulos cloth with various motifs. The results of this study of mathematics in culture can then be implemented in contextual mathematics learning by paying attention to cultural background, which is expected to facilitate and motivate students. The purpose of this research is to explain and expose the existence of ethnomathematics-based learning methods that associate elements of a culture with mathematical learning. With the existence of a culture, every person or individual can know everything that is contained in that culture. By choosing a topic about the cultural diversity of communities in the region of North Sumatra about the customary clothing of Ulos Batak, which in this study explains the existence of ethnomatematics contained in the motifs of the fabric of the Ulos of the Tribe of Batak Toba used in the wedding ceremony. The research method used is descriptive qualitative. The research also reveals how mathematical concepts are reflected in the fabric motifs of the outline, such as transformation, symmetry, and balance. This research uses data analysis techniques i.e. reduction, presentation and drawing conclusions. The data collection technique is carried out with the method of literature study where it is done by searching from various sources about Batak Toba's Modern Clothing then reduced by selecting the necessary information. Research results show that ethnomatematics is present in a variety of fabric motifs, including Passamot, Pengantin, Holong, and Sadum. By understanding the interrelationship between mathematics and culture in the context of the textile fabric, mathematical learning can become more interesting and meaningful for students. The research also emphasizes the importance of understanding and preserving the cultural heritage of the Batak Toba tribe.

Pengembangan Aktivitas Pembelajaran Menggunakan Aplikasi MathCityMap Untuk Mengembangkan Kemampuan Pemecahan Masalah Kontekstual Pramudita, Anastasia Farren; Rudhito, Marcellinus Andy
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol. 13 No. 1 (2024)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jipm.v13i1.19726

Penalaran dalam matematika akan menjadi dasar dalam mengkonstruksi pengetahuan konsep-konsep awal matematika. Hasil studi literatur mengatakan siswa mengalami peningkatan hasil belajar dan motivasi belajar matematika, jika pembelajaran menggunakan pendekatan kontekstual. Oleh karena itu, peneliti mengembangkan sebuah produk aktivitas pembelajaran matematika menggunakan aplikasi MathCityMap dengan tujuan penelitian 1) mengembangkan produk aktivitas pembelajaran menggunakan aplikasi MathCityMap untuk mengembangkan kemampuan pemecahan masalah kontekstual 2) mengetahui dan mendeskripsikan hasil kualitas produk aktivitas pembelajaran menggunakan aplikasi MathCityMap. Jenis penelitian yang digunakan yaitu penelitian dan pengembangan dengan model ADDIE dari Robert Maribe Branch (2009) dalam Sugiyono (2022). Teknik pengumpulan data menggunakan wawancara, hasil pengukuran aktivitas pembelajaran soal kontekstual, penyebaran angket respon siswa, dan validasi produk aktivitas MathCityMap. Data tersebut akan dianalisis dengan teknik deskriptif dan kuantitatif untuk mengukur kevalidan, kepraktisan aktivitas, dan tingkat kemampuan pemecahan masalah siswa. Uji coba produk aktivitas math trail dilakukan kepada 32 orang, siswa kelas VII E SMP Negeri 1 Yogyakarta. Hasil penelitian dalam mengembangkan produk aktivitas pembelajaran matematika menggunakan aplikasi MathCityMap untuk 1) mengembangkan kemampuan pemecahan masalah kontekstual dengan tahap analysis, design, development, implementation, dan evaluation. Hasil uji validitas produk MathCityMap diperoleh persentase 83,33% dengan kriteria sangat valid. Kemudian, 2) hasil kepraktisan produk dari angket respon siswa diperoleh persentase 74,13% dengan kriteria praktis. Hasil rata-rata pengerjaan aktivitas math trail adalah 77,7 dengan kriteria baik. Hasil rata-rata kemampuan pemecahan masalah yaitu 69,51% dengan kriteria sedang.

Co-Authors Adhiananta, Brigitta Kierra Purwa Agustin, Sara Sarita ARI SUPARWANTO Binuryan, Podang Budiarta, Helena Noventyas Pradnyamita Christofer Yoga Ardinata Dewa Putu Wiadnyana Putra Dewi Mentaru, Anastasia Victri Disman Gulo Endah Saraswati Frans Susilo Gabriela Alvina Maheswari Gunardi, Devina Pratmasari Gunawan, Monica Tiara Herningtyas Ayu Putri Cahyanti, Aurelia Hongki Julie Jawa, Petrus Ignasius Junior Kinanti, Theresia Restu Kristanti, Rani Lestari, Yuliastuti Dwi Malau, Evi Ervera Manihuruk, Silvia Mercyananta, Sterivia Nareswari, Bernadeta Lalita Nimade, Satianingsih Ningrum, Marcelia Puspita Nugraha, Adhi Surya Nugroho, Alexander Febrian Par, Yohannaes Benyamin Sino Pramudita, Anastasia Farren Prasetyo, Dominikus Arif Budi Santoso, Fransiskus Gatot Iman sidabalok, alfrendo Sri Wahyuni Syahdana, Hanifah Tarigan, Omry Tyas, Azkia Martiana Winarning Vigih Hery Kristanto Yosefin, Arballeta

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