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All Journal Jurnal Ilmiah Mandala Education (JIME) JISIP: Jurnal Ilmu Sosial dan Pendidikan JUPE : Jurnal Pendidikan Mandala Media Pendidikan Matematika Abdi Masyarakat Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Jurnal Informatika dan Teknologi Pendidikan Jurnal Pendidikan MIPA Media Pendidikan Matematika
Dewi Kristika Findia Ning Tyas
Universitas Cenderawasi
Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Mathematics Physics Social Sciences Other

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Studi Tentang Implementasi Model Kooperatif Tipe STAD Pada Materi Geometri Bidang Datar Salmiati, Salmiati; Lumbantobing, Happy; Tyas, Dewi Kristika Findia Ning; Kho, Ronaldo; Hadiyanti, Yosefin Rianita
Jurnal Informatika dan Teknologi Pendidikan Vol. 3 No. 2 (2023): Desember 2023 - Jurnal Informatika dan Teknologi Pendidikan
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25008/jitp.v3i2.66

Abstract

Tulisan ini bertujuan untuk mengkaji tentang implementasi model pembelajaran kooperatif tipe Students Teams Achievement Division (STAD) pada materi geometri bidang datar. Studi ini dilakukan dengan menggunakan studi literature terhadap berbagai hasil penelitian dan buku-buku yang berhubungan dengan pembelajaran kooperatif tipe Student Teams Achievement Division (STAD) dan pengajaran matematika pada topik geometri bidang datar. Hasil studi menunjukan bahwa pembelajaran pada materi geometri bidang datar dengan menggunakan model pembelajaran kooperatif tipe Student Teams Achievement Division (STAD) dapat meningkatkan aktivitas dan hasil belajar siswa. Selain itu, pembelajaran dengan model kooperatif tipe STAD pada materi geometri bidang datar meningkatkan kreativitas guru dan siswa dalam mempelajari materi geometri bidang.
Pembelajaran Berbasis Steam Bagi Guru-Guru SD Negeri Emereuw Kota Jayapura Kho, Ronaldo; Tyas, Dewi Kristika Findia Ning; Doo, Katarina
Abdi Masyarakat Vol 4, No 2 (2022): Abdi Masyarakat
Publisher : Lembaga Penelitian dan Pendidikan (LPP) Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/abdi.v4i2.4019

Abstract

Kemajuan ilmu dan teknologi saat ini menuntut para guru agar melek teknologi. Dengan pemahaman dan penggunaan teknologi dengan baik diharapkan berimplikasi pada siswa yang diajar. Siswa perlu dibekali dengan pengetahuan dan pemahaman teknologi yang tepat guna dan berhasil guna, agar mampu menerapkan teknologi dalam menyelesaikan permasalahan dalam kehidupan sehari-hari. Salah satu pendekatan pembelajaran yang melibatkan teknologi dan ilmu pengetahuan adalah pendekatan pembelajaran berbasis STEAM. Kegiatan pengabdian ini dilaksanakan dengan tujuan untuk meningkatkan kemampuan dan pemahaman guru-guru SD Negeri Emereuw Kota Jayapura dalam merancang, membuat, dan menerapkan pembelajaran berbasis STEAM. Hasil pengabdian menunjukkan bahwa (1) Pelaksanaan kegiatan berjalan dengan lancar, (2) Semua peserta mampu memahami materi yang disampaikan, dan (3) Guru/peserta dapat memahami pendekatan pembelajaran berbasis STEAM melalui kegiatan simulasi.
Teacher Communication Practices in Trigonometric Instruction: A Comparative Study Across Experience Levels Tyas, Dewi Kristika Findia Ning; Purwanto, Purwanto; Qohar, Abd.; Sulandra, I Made
Jurnal Pendidikan MIPA Vol 25, No 4 (2024): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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

Abstract

Teacher communication is critical in mathematics learning, influencing students’ understanding, engagement, and academic success. This study explores the communication practices of novice, intermediate, and senior mathematics teachers when teaching trigonometric comparisons in right triangles. Using a qualitative exploratory design, classroom observations and interviews were conducted with three vocational high school teachers in Keerom Regency, Papua Province, Indonesia, focusing on five communication aspects: clarity, assertiveness, responsiveness, relevance, and presentation style manipulation. The findings reveal significant differences among the teacher groups. Novice teachers exhibited excellent communication by integrating prerequisite knowledge, employing visual aids, and connecting lessons to real-world applications. Intermediate teachers demonstrated structured but conventional communication methods, focusing on content delivery with limited interactivity. Senior teachers, while experienced and accurate, relied heavily on traditional lecture-based approaches and displayed limited responsiveness to student needs. This study highlights the strengths of novice teachers’ student-centered strategies, such as group activities and guided discovery, which enhanced student engagement and comprehension. The research underscores the need for professional development programs to promote innovative teaching practices across all experience levels. Future studies should examine how professional growth and contextual factors influence teacher communication, contributing to improved mathematics learning outcomes.       Keywords: teacher communication, vocational school, trigonometry, teaching experience. DOI: http://dx.doi.org/10.23960/jpmipa/v25i4.pp1854-1869
PROFIL PEMECAHAN MASALAH MATEMATIKA MAHASISWA MENGGUNAKAN LANGKAH POLYA BERDASARKAN GAYA KOGNITIF FIELD INDEPENDENT DAN FIELD DEPENDENT Tyas, Dewi Kristika Findia Ning
Media Pendidikan Matematika Vol. 6 No. 1 (2018)
Publisher : Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/mpm.v6i1.1510

Abstract

Based on the experience of the researchers taught the subject of Economic Mathematics many students who have not been able to solve the problem solving. One alternative that can be used to solve the problem is by using Polya steps. When solving a mathematical problem, each student has a different way of thinking. The difference is possible because of differences in student cognitive style. The cognitive styles used in this research are Field Independent cognitive style and Field Dependent cognitive style. The material chosen in this research is the demand function, the Bid Function, the Savings Function and the Taxation Function. This research is a descriptive research with qualitative approach which aims to describe the problem solving ability of student mathematics using Polya steps in terms of cognitive style of FI and FD. Subjects in this research are students of VI semester of Mathematics Education Program. Technique of taking research subject is by purposive sample. The results showed that FI subject understood the problem well. In the planning step, the FI subject can analyze the information received. Subjects use previously learned information and solve problem-solving given to the problem as planned and check back on each question. The subject of FD can not receive information and understand the problems that exist in the problem and can not process information/do not understand the purpose of the problem. In the planning step, the subject of FD is unable to think how to solve the problem and is not accustomed to rechecking
Training of Luper Borubung (Surface Area of a Sphere, Cone, Cylinder) Demonstration Tools on the Surface Area of Curved Sided Template Figures (BRSL) Tyas, Dewi Kristika Findia Ning; Kulimbang, Elieser; Asri, Harits Pratama; Langoday, Maria Novita; Dori, Novita Nanianti
JISIP: Jurnal Ilmu Sosial dan Pendidikan Vol 10, No 1 (2026): JISIP (Jurnal Ilmu Sosial dan Pendidikan) (Januari)
Publisher : Lembaga Penelitian dan Pendidikan (LPP) Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jisip.v10i1.9958

Abstract

Mathematics learning on the topic BRSL, particularly the determination of surface area, is often hampered by the abstract nature of the concept and the lack of adequate visual representation. This condition has the potential to hinder students' conceptual understanding and mathematical reasoning abilities. We often find that students' understanding and learning outcomes are low on this material. This luper borubung teaching aid is based on the urgency of developing learning aids that can bridge the gap between theory and visual reality. The results of the application of the luper borubung teaching aid show that 71% of students' learning outcomes are in the good category, creating a more enjoyable and meaningful learning atmosphere because they construct knowledge together in groups. The results of the attitude assessment show a percentage of cooperative attitudes, a responsible attitude , a self-confident attitude, and a meticulous attitude
Mathematical Communication of Vocational High School Students in Solving Papuan Ethnomathematics-Based Problems Tyas, Dewi Kristika Findia Ning; Ruamba, Marthinus Y.; Agustin, Ririn Dwi; Pujilestari, Pujilestari
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol. 14 No. 1: January 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v14i1.17783

Abstract

This study examines how Indonesian vocational high school (SMK) students communicate mathematically while solving systems of three-variable linear equations (SPLTV) embedded in Papuan ethnomathematical contexts. Using a qualitative descriptive design, the study involved ten Grade 10 students representing ten vocational departments. Data were collected through students’ written solutions to ethnomathematics-based SPLTV tasks (e.g., contexts involving culturally familiar objects such as noken and local economic practices) and follow-up semi-structured interviews intended to clarify students’ reasoning, procedural choices, and interpretation of results. Analysis employed a rubric-guided coding scheme comprising three observable indicators of mathematical communication: (1) mathematical expression/modeling (translating contextual information into variables and SPLTV equations), (2) identifying relevant information and coherently explaining solution procedures, and (3) drawing contextual conclusions that interpret solutions in relation to the problem situation. To ensure consistent reporting, each indicator was evaluated by evidence source written work (W), interview evidence (I), or both (W+I) allowing the study to distinguish between students who understood an element but did not document it in writing. Findings indicate that all participants were able to construct an SPLTV model from the cultural context, and most were able to explain elimination–substitution procedures, although several omitted key communication components (e.g., “given/asked” statements or an explicit concluding sentence) in their written work. Overall, eight of ten students produced a valid contextual conclusion when evidence from written work and/or interviews was considered, whereas two students struggled with core procedural steps and therefore could not reach a meaningful conclusion. These results suggest that Papuan cultural contexts can support meaning-making and initial modeling, but explicit support for procedural fluency and written communication norms remains necessary to produce complete, accountable solutions.
Co-Authors Asri, Harits Pratama Doo, Katarina Dori, Novita Nanianti Happy Lumbantobing, Happy I Made Sulandra Kulimbang, Elieser Langoday, Maria Novita Matius Pai'pinan Mayor M. H. Manurung Pujilestari, Pujilestari Purwanto Purwanto Qohar, Abd. Ririn Dwi Agustin Ronaldo Kho Ruamba, Marthinus Y. Salmiati Salmiati, Salmiati Yosefin Rianita Hadiyanti