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All Journal Progressive of Cognitive and Ability OMEGA: Jurnal Keilmuan Pendidikan Matematika International Journal of Applied Learning and Research in Algebra
Ramlan, Wahyudi
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Education Mathematics Other

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Analisis Kesulitan Siswa SMP Dalam Menyelesaikan Soal Geometri Bangun Ruang Sisi Datar Parindang, Edwin Amanu; Yuspelto, Nabil Maulana; Ramlan, Wahyudi; Angraini, Lilis Marina
Progressive of Cognitive and Ability Vol. 3 No. 3 (2024)
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56855/jpr.v3i3.1035

Abstract

This study aims to analyze the difficulties students face in solving geometry problems related to polyhedral shapes. The indicators used in this study are competency achievement indicators. The research method employed is descriptive with a quantitative approach. Data collection techniques involved administering essay tests to students, followed by correction and analysis of their answers. The research was conducted at SMP Negeri 1 Tualang with eighth-grade students during the second semester of the 2023/2024 academic year. The study population consisted of eighth-grade students, with a sample of 25 students. The researcher used an essay test as an instrument to gather data. The test results were analyzed by measuring the percentage of each indicator. The test instrument comprised five essay questions. The results showed that students at the school still experience difficulties in solving problems related to polyhedral shapes.
Identification of Junior High School Students' Mathematical Problem Solving Abilities on Number Patterns Parindang, Edwin Amanu; Ramlan, Wahyudi; Wahyuni, Reni; Salman , Muhammad
International Journal of Applied Learning and Research in Algebra Vol. 2 No. 2 (2025)
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56855/algebra.v2i2.1487

Abstract

This study aims to analyse the mathematical problem-solving abilities of middle school students in the context of number patterns. Using a descriptive qualitative method, the research was conducted on eighth-grade students at SMP Negeri 3 Tualang. The instruments used included problem-solving tests in the form of essay questions and interviews. Subjects were selected using purposive sampling, consisting of 6 students with varying abilities (high, medium, low). The results show that students have varying abilities in four problem-solving indicators: understanding the problem (50% - medium), planning the solution (8.33% - very low), solving the problem (100% - very high), and reviewing the solution (25% - low). The data indicates that while students are capable of solving problems and understanding the questions, they struggle with planning solutions and reviewing their answers. It is recommended to enhance teaching strategies with more flexible approaches, such as problem-based learning (PBL), to improve students' mathematical problem-solving skills.
Development of Autograph-Assisted Teaching Materials to Improve Students' Mathematical Literacy Skills Phase F Ramlan, Wahyudi; Zetriuslita, Zetriuslita; Suripah, Suripah; Widiati, Indah
OMEGA: Jurnal Keilmuan Pendidikan Matematika Vol. 4 No. 3 (2025): OMEGA (In Press)
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Alwashliyah Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/jkpm.v4i3.1033

Abstract

Mathematical literacy is a crucial competency in 21st-century education however, international assessments such as PISA indicate that Indonesian students still have low levels of mathematical literacy. This study aims to develop mathematics teaching materials assisted by Autograph software to enhance the mathematical literacy skills of Phase F students in the topic of geometric transformations.. This research employs the ADDIE development model, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. The research subjects were students of Class XI-4 at SMA Negeri 4 Tanah Putih. The instruments used included validation sheets, mathematical literacy tests (pretest and posttest), student response questionnaires, and observations. The results of the study show that the developed teaching materials are highly valid, with an average validation score of 89.10%, practical based on student responses with a score of 79.73% categorized as “practical,” and effective based on an N-gain score increase of 0.43 and a statistically significant t-test result. Therefore, the Autograph-assisted teaching materials are considered valid, practical, and reasonably effective in improving students' mathematical literacy skills in geometric transformations.
Co-Authors Indah Widiati, Indah Lilis Marina Angraini Parindang, Edwin Amanu Salman , Muhammad Suripah Suripah Wahyuni, Reni Yuspelto, Nabil Maulana Zetriuslita