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All Journal Jurnal Infinity Jurnal Didaktik Matematika PRISMA Jurnal Pendidikan Matematika (Jupitek) Jurnal Magister Pendidikan Matematika (JUMADIKA) Pakem : Jurnal Pengabdian Kepada Masyarakat Sanjiwani: Jurnal Filsafat Sipakaraya : Jurnal Pengabdian Masyarakat
Pieter Zakarias Tupamahu
Universitas Pattimura
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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Students’ Mathematical Representation and Communication Ability in Mathematics Problem Solving Pieter Zakarias Tupamahu; Tanwey Gerson Ratumanan; Christina Laamena
Didaktik Matematika Vol 10, No 1 (2023): April 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (832.499 KB) | DOI: 10.24815/jdm.v10i1.29376

Abstract

In learning mathematics, representation and communication ability are required by students to solve problems. The ability to represent is crucial for students to simplify the learning process, while students who have good mathematical communication abilities can easily solve a problem. This study applied a sequential mixed methods approach. Quantitative data was obtained from the results of the written test, then the ability of mathematical representation and communication in solving problems on linear program material was analyzed qualitatively. The participants of this study were 59 students from one of the senior high schools in Ambon, Indonesia. The research phase was begun with students being asked to solve mathematics problems and then researchers analyze representation and written communication ability. The largest percentage of students' results on the test was in the very low category of mathematical representation and communication ability. The results showed that students who had good representation and communication abilities would be able to solve problems. There were significant correlations and a very strong correlation between mathematical representation and communication ability with a Pearson Correlation coefficient of 0.915. After obtaining the test result, subjects were selected based on the category of ability to conduct interviews. Based on the results of the interview, the mathematical representation ability that the subject uses well will directly involve mathematical communication skills well, and vice versa.
Realistic mathematics education: Mathematics e-modules in improving student learning outcomes Palinussa, Anderson Leonardo; Tupamahu, Pieter Zakarias; Sabandar, Vederico Pitsalitz; Makaruku, Yulian Hanny; Sabandar, Jozua
Jurnal Infinity Vol 14 No 1 (2025): VOLUME 14, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v14i1.p45-64

Abstract

Realistic Mathematics Education (RME) has gradually influenced the development of mathematics learning worldwide, including in Indonesia. Through the implementation and development of online-based 21st-century education, RME is increasingly proving itself as an effective approach to improving the quality of mathematics teaching and student learning. Learning using the RME approach based on the e-module System aims to become a real learning experience for education and students in implementing mathematical concepts into web-based software systems. The type of research used is pseudo-experimental research with a population in this study of 3 schools, and the number of samples is 147 students. Hypothesis testing was carried out with the N-gain test on the experimental class and control class and the Linear Regression Analysis Test to determine the effect of Gender on improving the learning outcomes of the experimental class. The results of this study show that: 1) There is a difference in the improvement of learning outcomes of classes taught with the RME approach based on the e-module System with conventional learning models; 2) There is no significant difference in the improvement of learning outcomes of students taught using the RME approach based on the E-Module System based on gender characteristics; 3) Gender only contributes 0.1% to the improvement of learning outcomes while 99.9% of other factors.
PELATIHAN MERANCANG LEMBAR KEGIATAN PESERTA DIDIK BERBASIS ELEKTRONIK (E-LKPD) MENGGUNAKAN GOOGLE SITES UNTUK PENDIDIK TINGKAT SMA/SMK Sabandar, Vederico Pitsalitz; Palinussa, Anderson Leonardo; Makaruku, Yulian H; Tupamahu, Pieter Z
PAKEM : Jurnal Pengabdian Kepada Masyarakat Vol 3 No 2 (2023): Pakem : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/pakem.3.2.171-178

Abstract

The community service activity carried out aims to enhance the quality of educators, especially in facing the changes of the Society 5.0 era, so that educators can become more creative, plan engaging learning, and increase the interest and creativity of students in learning through training in designing electronic-based Teaching and Learning Materials (LKPD) using Google Sites. The training took place at SMA Negeri 1 SBB, Kecamatan Kairatu, Kabupaten West Seram District, and focused on educators at the high school and vocational school levels. The training activities used methods such as lectures, question and answer sessions, presentations, simulations, and tests, with 28 participants who were subsequently considered respondents. The instruments used included test questions presented in the form of questionnaires, aimed at assessing the participants' understanding of the training material. Based on the analysis of the participants' initial knowledge, an average score of 55.14% was obtained, categorized as low. In contrast, after the training, the analysis of the final understanding of the participants yielded an average score of 96.68%, categorized as high. Furthermore, based on the N-Gain test, an average score of 92.7% was obtained, indicating effectiveness. Based on these results, it can be concluded that the training materials provided have a significant impact on enhancing educators' understanding of the benefits of using technology in education
STRATEGI PENGEMBANGAN KONSEP NUMERASI DALAM PEMBELAJARAN INTERSIPLINER Palinussa, Anderson Leonardo; Tupamahu, Pieter Zakarias
PAKEM : Jurnal Pengabdian Kepada Masyarakat Vol 4 No 2 (2024): Pakem : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/pakem.4.2.147-152

Abstract

Pelaksanaan kegiatan Pengabdian Kepada Masyarakat (PkM) ini bertujuan untuk membantu guru dalam memahami strategi pengembangan konsep numerasi dalam pembelajaran interdisipliner yang diterapkan pada guru-guru di kota Masohi, dimana permasalahan yang sering terjadi berkaitan dengan peningkatan kompetensi pedagogik guru. Kegiatan ini dilakukan melalui metode ceramah, tanya jawab dan diskusi dengan tujuan utama meningkatkan kemampuan guru dalam mengintegrasikan konsep numerasi ke dalam berbagai disiplin ilmu. Hal ini diharapkan dapat membantu siswa memahami dan mengaplikasikan matematika dalam kehidupan sehari-hari secara lebih efektif. Pemberian materi ini mencakup pengenalan konsep numerasi, pentingnya numerasi dalam pembelajaran, serta teknik dan strategi untuk mengintegrasikan numerasi ke dalam berbagai mata pelajaran
The Influence of Motivation and Study Habits on Student Achievement Index Juandi, Dadang; Monariska, Erma; Tupamahu, Pieter Zakarias
PRISMA Vol 14, No 1 (2025): PRISMA
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jp.v14i1.4983

Abstract

This study analyzes the direct and indirect effects of learning motivation and learning habits on student grade point average (GPA). The study used a quantitative approach with the path analysis method. The research sample consisted of 57 students and was obtained based on the distribution of research questionnaires. The results showed some important findings: First, learning motivation has a significant direct influence on learning habits, with a path coefficient of 0.673, indicating the critical role of Motivation in shaping positive learning patterns. Second, learning motivation was also shown to significantly influence the GPA with a path coefficient of 0.498, confirming its role as a key factor in academic achievement. Thirdly, learning habits did not considerably affect the GPA, with a path coefficient of only 0.253. Furthermore, it was found that learning habits did not play an effective role as a mediator in the relationship between learning motivation and grade point average. The practical implications of this study suggest that strategies to improve students' academic achievement should focus more on strengthening learning motivation without neglecting the importance of forming positive learning habits.
STEM AND STEAM EDUCATION IN 1st DECADE: A BIBLIOMETRIC ANALYSIS (2014-2025) Tupamahu, Pieter Zakarias; Dasari, Dadan; Priatna, Nanang; Lethulur, Nelma Dortje
Jurnal Magister Pendidikan Matematika (JUMADIKA) Vol 7 No 1 (2025): Jurnal Magister Pendidikan Matematika (JUMADIKA)
Publisher : Prodi Magister Pendidikan Matematika Pascasarjana Universitas Pattimura Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jumadikavol7iss1year2025page115-130

Abstract

STEM and STEAM education has become a strategic learning approach in addressing global challenges in the Industrial Revolution 4.0 and Society 5.0 era, focusing on developing 21st-century skills, such as creativity, critical thinking, problem-solving and collaboration. This study used bibliometric analysis of 535 articles from the Scopus database published between 2014 and 2025 to explore research trends, dominant keywords, geographical contributions, and author and institutional impact. Data analysis conducted with RStudio, VOSviewer, and Excel identified four main clusters: skills development, educational approaches, utilization of STEM in various fields, and use of learning-based tools such as AR and VR. STEM and STEAM education effectively increased student engagement and built cross-disciplinary skills. However, challenges such as gaps in technology access and teacher training still need to be addressed. These results provide important insights for curriculum development, teacher professional training and education policies supporting technology-based learning transformation.
MATHEMATICAL REPRESENTATION ABILITY OF MATHEMATICS EDUCATION STUDY PROGRAM STUDENTS Ratumanan, Tanwey Gerson; Ayal, Carolina Selfisina; Tupamahu, Pieter Z
Jurnal Pendidikan Matematika (JUPITEK) Vol 5 No 1 (2022): Jurnal Pendidikan Matematika (JUPITEK)
Publisher : Program Studi Pendidikan Matematika FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jupitekvol5iss1pp50-59

Abstract

This research is descriptive because it aims to describe students' mathematical representation ability. Mathematical representation is related to ways of expressing mathematical ideas. Mathematical representation is divided into verbal, visual/pictorial, and symbolic representations. The subjects of this study were 40 new Mathematics Education study program students. Data were collected using test and interview techniques. Furthermore, the data were analyzed using descriptive and qualitative statistics. The results showed that only 10% of the students had the mathematical representation ability in the good category, 12.5% in the moderate category, 10% in the poor category, and 67,5% in the very poor category. In detail, for verbal skills, there is 2.5% in the very good category, 7.5% in the good category, 17.5% in the moderate category, 15% in the poor category, and 55% in the very poor category. For the ability of visual/pictorial representation, there is 2.5% in the very good category, 7.5% in the good category, 12.5% in the moderate category, 7.5% in the poor category, and 70% in the very poor category. Furthermore, for the symbolic representation ability, 10% is in a good category, 10% in the moderate category, 7.5% in the poor category, and 72.5% in the very poor category. Based on the classroom observation and interview, the low mathematical representation ability is caused by two main things, namely (1) relatively low prerequisite knowledge and (2) mathematics learning, which is dominated mainly by teachers; learning does not provide opportunities for students to develop mathematical representation skills
PENGGUNAAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM PAIR SOLO BERBANTUAN SOFTWARE GEOGEBRA UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI LINGKARAN Laamena, Christina M; Gaspersz, Magy; Tupamahu, Pieter Z
Jurnal Magister Pendidikan Matematika (JUMADIKA) Vol 1 No 1 (2019): Jurnal Magister Pendidikan Matematika (JUMADIKA)
Publisher : Prodi Magister Pendidikan Matematika Pascasarjana Universitas Pattimura Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.815 KB) | DOI: 10.30598/jumadikavol1iss1year2019page45-50

Abstract

This study aims to improve the learning outcomes of grade VII students of SMP Negeri 6 Ambon in circle material by using the Team Pair Solo type cooperative model with the help of the Geogebra Software. The subjects of this study were students of class VIII-Science of SMP Negeri 6 Ambon, amounting to 28 students. This type of research was Classroom Action Research (CAR). This study was conducted in two cycles with every cycles suddenly from four meetings. Data in this study were collected through observation and test sheets. The findings in this study indicate that the final test results from cycle I to cycle II increased by 25%. Based on the results of this study it can be concluded that student learning outcomes in circle material can be improved with Team Pair Solo learning models assisted by Software Geogebra Software in class VIII of SMP Negeri 6 Ambon
Pendampingan Guru Sekolah Menengah dalam Penerapan ICT untuk Asesmen Pembelajaran Dahlan, Jarnawi Afgani; Kusumah, Yaya Sukjaya; Monariska, Erma; Jalal, Ariyanti; Maknun, Churun Lu'lu'il; Ernawati; Ikram, Fadhil Zil; Panjaitan, M. Azhari; Tupamahu, Pieter Z.; Silitonga, R. H. Yanti
Sipakaraya : Jurnal Pengabdian Masyarakat Vol 4 No 1 (2025): Sipakaraya : Jurnal Pengabdian Masyarakat
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/sipakaraya.v4i1.5428

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengatasi permasalahan rendahnya pemanfaatan teknologi informasi dan komunikasi (ICT), khususnya dalam kegiatan evaluasi dan asesmen pembelajaran oleh guru di sekolah mitra. Permasalahan ini dapat ditinjau dari dua aspek utama, yaitu keterbatasan pengetahuan dan keterampilan guru dalam menggunakan platform digital untuk evaluasi dan asesmen, serta belum dikenalnya potensi kecerdasan buatan (AI) dalam menunjang penilaian pembelajaran yang efektif dan efisien. Melalui kegiatan pengabdian berupa pendampingan atau pelatihan ini, diharapkan para guru di sekolah mitra tidak hanya memperoleh pemahaman konseptual tentang pentingnya integrasi teknologi dalam evaluasi dan asesmen pembelajaran, tetapi juga memiliki keterampilan praktis untuk menerapkannya secara langsung dalam konteks kelas mereka masing-masing. Kegiatan pengabdian dilaksanakan secara hybrid yang berpusat di SMK TIK Al-Islam Purwakarta. Kegiatan dilaksanakan pada hari Sabtu, 23 Agustus 2025 dengan 27 guru yang mengikuti kegiatan. Adapun guru-guru yang mengikuti kegiatan ini berasal dari tiga sekolah yaitu SMA Al Jundiyah, SMA Dzakiyun 2, dan SMK TIK Al Islam. Hasil pelaksanaan serta evaluasi terhadap kegiatan pengabdian masyarakat yang telah dilaksanakan menunjukkan bahwa indikator keberhasilan kegiatan pengabdian, yaitu materi, narasumber, pelaksanaan kegiata, serta dampak manfaat, sudah terpenuhi sehingga kegiatan pendampingan atau pelatihan terkait pemanfaatan ICT dalam asesmen pembelajaran dapat dikatakan sukses dan berhasil. Kegiatan pendampingan atau pelatihan berhasil dalam menambah wawasan dan pengetahuan serta keterampilan terkait ICT dalam Pendidikan, utamanya mengenai pemanfaatannya dalam asesmen pembelajaran. Selain itu, para responden juga memberikan komentar yang positif terhadap pelaksanaan kegiatan dan berharap kegiatannya dapat dilaksanakan secara berkala.
PERSPEKTIF CALON PENDIDIK TERHADAP FILOSOFIS EKSISTENSIALISME Tupamahu, Pieter Zakarias; Turmudi; Lethulur, Nelma Dortje
Sanjiwani: Jurnal Filsafat Vol 16 No 1 (2025)
Publisher : Universitas Hindu Negeri I Gusti Bagus Sugriwa Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25078/sjf.v16i1.4367

Abstract

This study aims to analyze prospective educators' views on philosophical existentialism in the context of education. Existentialism as a school of philosophy that emphasizes individual existence and freedom of choice is important to be understood by pre-service teachers’ in shaping a more humanist approach to learning. This research uses a descriptive qualitative approach with a literature study method supported by data collection through questionnaires to 50 pre-service teachers’. The results obtained reveal significant potential in the development of existentialism-based education through the perspective of prospective educators. A good understanding of the basic concepts, high readiness for implementation, and appreciation of existential values provide a strong foundation for a more humanist and meaningful educational transformation.
Co-Authors Anderson Leonardo Palinussa Ariyanti Jalal Ayal, Carolina Selfisina Christina Martha Laamena Dadan Dasari Dadang Juandi Erma Monariska Ernawati Fadhil Zil Ikram Gaspersz, Magy Jarnawi Afgani Dahlan Jozua Sabandar Lethulur, Nelma Dortje Makaruku, Yulian H Makaruku, Yulian Hanny Maknun, Churun Lu'lu'il Nanang Priatna Panjaitan, M. Azhari Ratumanan, Tanwey Gerson Silitonga, R. H. Yanti Talakua, Marlyd Tanwey Gerson Ratumanan Turmudi Vederico Pitsalitz Sabandar Welmintje Mataheru Yaya S. Kusumah