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Journal : Jurnal Penelitian Pendidikan Matematika dan Sains

Profil Kemampuan Representasi Matematis Siswa Kelas VII Dalam Menyelesaikan Soal Penyajian Data Hasanah, Farisatul; Handayani, Ucik Fitri
JURNAL PENELITIAN PENDIDIKAN MATEMATIKA DAN SAINS Vol. 9 No. 1 (2025): JPPMS Vol. 9 No. 1 (2025)
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppms.v9n1.p19-27

Abstract

This study aims to describe the profile of mathematical representation ability of seventh grade students in solving data presentation problems at Sultan Agung Islamic Junior High School Sudimoro, Malang Regency. This research used descriptive qualitative method involving seventh grade students in the 2024/2025 academic year. Data were collected through written test instruments that included indicators of verbal, symbol, and image representation abilities. The research subjects consisted of 3 students who represented each category of mathematical ability, namely high, medium and low. The results showed that students' verbal and symbol representation skills were very good, reaching a percentage of 91% and 86% respectively. However, the ability of image representation is still lacking because it only reaches a percentage of 45%. Difficulties in image representation are caused by limited understanding of the importance of visual representation in mathematics. students with high mathematical ability can fulfill all indicators of representation ability, namely verbal representation, symbols and images according to their abilities. Students with medium ability can only fulfill two indicators of representation ability, namely symbol and image representation according to their abilities. Students with low mathematical ability have not been able to fulfill all indicators of mathematical representation ability. This study suggests the need for additional practice and teaching to improve students' image representation skills in presenting and analyzing data effectively.
Kesalahan Siswa dalam Menyelesaikan Soal Cerita Sistem Persamaan Linear Tiga Variabel Berdasarkan Prosedur Polya Handayani, Ucik Fitri; Aisyah, Siti
JURNAL PENELITIAN PENDIDIKAN MATEMATIKA DAN SAINS Vol. 8 No. 1 (2024): JPPMS Vol. 8 No. 1 Tahun 2024
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppms.v8n1.p22-29

Abstract

The objective of this study is to describe students' errors in solving word problems related to the Three-Variable Linear Equation System based on Polya's procedure. The errors identified correspond to various stages of Polya's problem-solving method. This research adopts a descriptive approach with qualitative methods. Data collection involved tests and interviews, with the subjects being 10th-grade students at MA Miftahul Ulum Gondanglegi, East Java, Indonesia. The data analysis technique employed data reduction, presentation, and conclusion drawing. The research findings revealed that there are four main types of errors made by students. The most frequent error, accounting for 42%, was in rechecking the solutions obtained, indicating a tendency among students to be less thorough in reviewing their answers. Conversely, the least frequent error, occurring at 8%, was in understanding the problems, suggesting that students generally have a good grasp of what is known and what is asked in the problem. Several factors contribute to these errors, including students' lack of caution in reading and understanding the problems, inaccuracies in performing calculations, a lack of habit in writing down solutions in a sequential and systematic manner, and insufficient practice in verifying their answers.