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All Journal Griya Journal of Mathematics Education and Application Riemann : Research of Mathematics and Mathematics Education
Abi Suwito
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Education Mathematics

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Analisis Kesalahan Mahasiswa dalam Pembuktian Geometri Analitik Materi Segitiga Anisa Widiastuti; Abi Suwito; Susanto, Susanto
Griya Journal of Mathematics Education and Application Vol. 3 No. 3 (2023): September 2023
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v3i3.363

Abstract

The purpose of this research is to find out what mistakes students make in proving a triangle. The research subjects were students in the Analytical Geometry class at the Mathematics Education Study Program at UIN KHAS Jember. This research is a qualitative descriptive study. The data collection techniques used were observation, tests, and interviews. Based on the research results, it was found that the types of errors made by students were (1) errors in the representation of mathematical symbols, (2) errors in the contradiction of triangle inequalities, and (3) errors in writing answers and errors in the proof process
Analisis Kesalahan Siswa dalam Menyelesaikan LKPD berbasis Inkuiri Terbimbing Materi Trigonometri Kelas X Sulia Anis Prastika; Abi Suwito; Susanto, Susanto
Griya Journal of Mathematics Education and Application Vol. 3 No. 3 (2023): September 2023
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v3i3.365

Abstract

This research aims to analyze students' errors using the Newman procedure in working on LKPD-based Guided Inquiry in class X Trigonometry material. This type of research is descriptive qualitative research. The subjects of this research were class X high school students. The data collection technique used was through the results of work on LKPD based on guided inquiry on Trigonometry material, observations, and interviews with class X students. Based on the analysis that has been carried out, it can be concluded that the errors experienced by high school students when working on LKPD-based guided inquiry on trigonometry material using the Newman procedure are errors in reading the problem (reading), understanding the problem (comprehension), transformation of the problem (transformation), process skills (process skills) and coding/drawing conclusions (encoding). From the results of the analysis above, it can be used as material for developing problems or difficulties faced by students in learning mathematics, especially in Trigonometry material in the future. Apart from that, there is a need for learning strategies that can embed concepts and understanding of previously studied material.
Analisis Kemampuan Komunikasi Matematis Tertulis Siswa Kelas VII Materi Geometri Bangun Datar ditinjau dari Jenis Kelamin AM, Alya Riskina; Susanto, Susanto; Abi Suwito
Griya Journal of Mathematics Education and Application Vol. 3 No. 3 (2023): September 2023
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v3i3.369

Abstract

Written mathematical communication skills are students' ability to express ideas in writing, as well as using images, symbols, and written vocabulary with the aim of conveying correct information according to mathematical rules. This research aims to analyze the written mathematical communication skills of class VII SMP/MTs students on geometric geometric material in terms of gender. This research method uses a qualitative approach with a descriptive research type. The data analysis technique in this research is data triangulation from observation results, mathematical communication ability test results, and interview results. The results of this research show that male students focus more on the final result, but understand the drawings that are made well and have high accuracy in the problem-solving process. Meanwhile, female students provide complete and detailed information about the questions, although they often make mistakes in understanding the questions.
Penerapan Media Pembelajaran Berbantuan Geogebra untuk Memecahkan Masalah Meteri Transformasi Nazihah, Ulfatun; Susanto, Susanto; Abi Suwito
Griya Journal of Mathematics Education and Application Vol. 3 No. 3 (2023): September 2023
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v3i3.370

Abstract

Students’ difficulties in solving students' integral questions are caused by students enable to visualize abstract transformations. The lack of media used causes students to have difficulties in solving transformation. One of the alternatives to overcome this problem is by using GeoGebra-assisted learning media Therefore, the purpose of this study was to apply the media and to determine the effect of GeoGebra-assisted media on solving the problem of transformation. This Research engages 27 students. The design used in this study was the One-Group Pretest-Posttest. The data is obtained from the results of the pretest, treatment, and post-test. The data analysis technique used descriptive statistical data analysis technique and statistical inference. From the descriptive statistical analysis technique, the average pretest value was 29.44 and the posttest average was 91.67. From this average, there was an overall increase of 96.30%. The results of the inference analysis using the t-test obtained = 16.39 and = 1.684. this media also received a positive response from students. This can be seen from the student response questionnaire which got a total score of 93.09%. We can conclude that the GeoGebra media is very effectively used to solve the problem of transformation.
Developing a Set of Learning Tools Based on Realistic Mathematics Education for Sequences and Series Assisted by MathCityMap in Islamic Boarding School Hanifah Rizki Mubarokah; Pambudi, Didik Sugeng; Lestari, 3Nurcholif Diah Sri; Dian Kurniati; Abi Suwito
Riemann: Research of Mathematics and Mathematics Education Vol. 8 No. 1 (2026): EDISI APRIL
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/riemann.v8i1.200

Abstract

Mathematics learning is essential for strengthening students’ logical reasoning and numeracy skills, particularly in abstract topics such as sequences and series; however, instructional practices in Islamic boarding schools often remain procedural and insufficiently contextualized, creating a gap between theoretical recommendations of meaningful learning and classroom reality. This study aims to develop and evaluate RME-based learning tools for sequences and series assisted by MathCityMap to determine their validity, practicality, and effectiveness in a pesantren context. The research employed a 4D development model consisting of Define, Design, Develop, and Disseminate stages. Implementation involving an experimental class and a control class, each comprising 34 students. Data were collected through expert validation sheets, observation instruments, questionnaires, interviews, and numeracy pretest-posttest assessments. The results show that all learning tools achieved valid criteria, with average expert scores above 3.75 on a four-point scale. Practicality was confirmed by 95% implementation fidelity, 84.9% active student participation, and highly positive teacher and student responses. Effectiveness testing revealed a moderate N-gain score of 0.65 in the experimental class compared to 0.54 in the control class, with an independent samples t-test indicating a significant difference (Sig. = 0.049 < 0.05). These findings demonstrate that integrating Realistic Mathematics Education with MathCityMap enhances conceptual understanding, engagement, and numeracy achievement in sequences and series learning within Islamic boarding schools.
Co-Authors AM, Alya Riskina Anisa Widiastuti Dian Kurniati Didik Sugeng Pambudi Hanifah Rizki Mubarokah Lestari, 3Nurcholif Diah Sri Nazihah, Ulfatun Sulia Anis Prastika Susanto Susanto